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CPU crashes randomly

Last response: in Components
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September 29, 2012 3:29:52 AM

Hello,

my computer randomly crashes. I do not know where to start troubleshooting from. I also do not where to get an error log from. The only effect i observed after the crash is that the fans switched off momentarily and are switched on again but the system is not booting...

how do I know what's wrong? cud be psu/gfx/processor?

525W Cooler master EXtreme 2
SATA II HDD
8GB DDR3 1333Hz DRAM x2
i5-2500 @ 3.3Ghz
Asus EAH 6850HD DC

More about : cpu crashes randomly

September 30, 2012 1:42:40 PM

We need more information on your computer...
CPU
Memory
Case
Graphics Card
Motherboard
Power Supply
Operating System
m
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a b ) Power supply
September 30, 2012 3:31:26 PM

In which situation does it crash: while gaming, web, etc?

m
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Related resources
October 1, 2012 11:54:14 AM

jemm said:
In which situation does it crash: while gaming, web, etc?


i spend most of the time gaming. but there are instances that normal web browsing it crashes too
m
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a b ) Power supply
October 1, 2012 12:25:22 PM

Most of the time, when a computer can run games for a while but still spontaneously reboots while idle, the PSU is usually (part of) the problem.
m
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October 1, 2012 12:27:16 PM

hmm. so how to directly identify and confirm it as a problem? What steps should I take from here?

i played l4d2 for 2 hours, it seems fine. played bf3 and it crashes. but there are also random times it crashes while doing nothing.

is it an overheating issue?
m
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a b ) Power supply
October 1, 2012 12:53:33 PM

The easiest way to see whether or not the PSU is the problem is to swap out with a known-good PSU from a better brand than CoolerMaster.
m
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l
October 1, 2012 1:00:39 PM

thanks for the suggestion. but i do not know if it's the PSU fault yet. and i can't really get my hands on a better PSU w/o buying. I don't want to end up buying a new PSU to find out that it's not the problem. just a question, is it possible if the graphics card is experiencing overheating issues, it will call for a restart?
m
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Best solution

a b ) Power supply
October 1, 2012 1:09:19 PM

If the computer reboots while you are browsing web pages (which means practically idle), it is unlikely that either the GPU or CPU is overheating.

You could use HWMonitor to see how warm stuff is but if heat was the problem with your idle-reboots, I would expect the system to systematically reboot as soon as you start any game.
Share
October 1, 2012 1:21:04 PM

Edit 9:49 GMT+8 = Power surge detected! reflected on my mobo when it restarted.

one new symptom. once it restarts i see the red LED on my DRAM lit. Manual of my mobo here: http://www.manualowl.com/m/Asus/P8H67-M-LE/Manual/27583...

page 43

My HWmonitor stats while idle

CPUID HWMonitor Report
-------------------------------------------------------------------------

Binaries
-------------------------------------------------------------------------

HWMonitor version 1.2.0.0

Monitoring
-------------------------------------------------------------------------

Mainboard Model P8H67-M LE (0x00000268 - 0x16750EE8)

LPCIO
-------------------------------------------------------------------------

LPCIO Vendor ITE
LPCIO Model IT8771
LPCIO Vendor ID 0x90
LPCIO Chip ID 0x8771
LPCIO Revision ID 0x0
Config Mode I/O address 0x2E
Config Mode LDN 0x4
Config Mode registers
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 00 00
10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20 87 71 00 00 00 00 F3 00 00 00 00 40 83 00 00 00
30 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
50 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
60 02 90 0A 20 00 00 00 00 00 00 00 00 00 00 00 00
70 00 02 00 00 04 04 00 00 00 00 00 00 00 00 00 00
Register space LPC, base address = 0x0290


Hardware Monitors
-------------------------------------------------------------------------

Hardware monitor ITE IT8772
Voltage 0 1.01 Volts [0x54] (CPU VCORE)
Voltage 1 2.22 Volts [0xB9] (VIN1)
Voltage 2 2.89 Volts [0xF1] (+3.3V)
Voltage 3 2.80 Volts [0x8B] (+5V)
Voltage 4 9.94 Volts [0xCF] (+12V)
Voltage 5 -11.81 Volts [0xF6] (-12V)
Voltage 6 -7.82 Volts [0xA3] (-5V)
Voltage 7 4.66 Volts [0xE7] (+5V VCCH)
Voltage 8 1.66 Volts [0x8A] (VBAT)
Temperature 0 43°C (109°F) [0x2B] (TMPIN0)
Temperature 1 36°C (96°F) [0x24] (TMPIN1)
Fan 0 1012 RPM [0x29B] (FANIN0)
Fan 1 1180 RPM [0x23C] (FANIN1)
Fan PWM 0 0 pc [0x0] (FANPWM0)
Fan PWM 1 99 pc [0x7F] (FANPWM1)
Fan PWM 2 0 pc [0x0] (FANPWM2)
Register space LPC, base address = 0x0290

00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00 19 00 FF 03 13 FF 07 13 FF 87 C9 0F 00 9F 3D 00
10 7F 2B B5 31 C7 80 7F 00 02 02 00 F3 DE F3 F3 F3
20 54 B9 F1 8B CF F6 A3 E7 8A 2B 24 F8 80 03 C2 C2
30 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
40 FF FF FF FF FF FF 5F 40 AD 6A D4 00 FF FF FF FF
50 2D 38 7F 7F 7F 40 00 00 90 00 3B 12 60 00 00 00
60 00 28 46 20 3E 02 0F FF 7F 7F 7F 80 00 00 0F FF
70 7F 7F 7F 80 00 00 0F FF FF FF FF FF FF FF FF FF
80 00 00 00 00 00 00 00 00 00 00 00 00 00 42 02 A8
90 FF 00 00 00 FF 00 00 00 40 00 00 00 00 DD 02 00
A0 3B 3F 3F 3F 3F 3F 3F FF FF FF FF FF FF FF FF FF
B0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
C0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
D0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
E0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
F0 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF

Hardware monitor AMD ADL
Voltage 0 0.95 Volts [0x3B6] (VIN0)
Temperature 0 42°C (107°F) [0x2A] (TMPIN0)


Processors
-------------------------------------------------------------------------

Number of processors 1
Number of threads 4

APICs
-------------------------------------------------------------------------

Processor 0
-- Core 0
-- Thread 0 0
-- Core 1
-- Thread 0 2
-- Core 2
-- Thread 0 4
-- Core 3
-- Thread 0 6

Timers
-------------------------------------------------------------------------

ACPI timer 3.580 MHz
HPET timer 14.318 MHz
Perf timer 3.215 MHz
Sys timer 1.000 KHz


Processors Information
-------------------------------------------------------------------------

Processor 1 ID = 0
Number of cores 4 (max 8)
Number of threads 4 (max 16)
Name Intel Core i5 2500
Codename Sandy Bridge
Specification Intel(R) Core(TM) i5-2500 CPU @ 3.30GHz
Package (platform ID) Socket 1155 LGA (0x1)
CPUID 6.A.7
Extended CPUID 6.2A
Core Stepping D2
Technology 32 nm
TDP Limit 95 Watts
Core Speed 3405.2 MHz
Multiplier x FSB 34.0 x 100.2 MHz
Stock frequency 3300 MHz
Instructions sets MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, EM64T, VT-x, AES, AVX
L1 Data cache 4 x 32 KBytes, 8-way set associative, 64-byte line size
L1 Instruction cache 4 x 32 KBytes, 8-way set associative, 64-byte line size
L2 cache 4 x 256 KBytes, 8-way set associative, 64-byte line size
L3 cache 6 MBytes, 12-way set associative, 64-byte line size
FID/VID Control yes


Turbo Mode supported, enabled
Max non-turbo ratio 33x
Max turbo ratio 37x
Max efficiency ratio 16x
Max Power 120 Watts
Min Power 60 Watts
O/C bins +4
Ratio 1 core 37x
Ratio 2 cores 36x
Ratio 3 cores 35x
Ratio 4 cores 34x
TSC 3293.0 MHz
MPERF 3201.4 MHz


Thread dumps
-------------------------------------------------------------------------

CPU Thread 0
APIC ID 0
Topology Processor ID 0, Core ID 0, Thread ID 0
Type 01020105h
Max CPUID level 0000000Dh
Max CPUID ext. level 80000008h
Cache descriptor Level 1, D, 32 KB, 2 thread(s)
Cache descriptor Level 1, I, 32 KB, 2 thread(s)
Cache descriptor Level 2, U, 256 KB, 2 thread(s)
Cache descriptor Level 3, U, 6 MB, 16 thread(s)

CPUID
0x00000000 0x0000000D 0x756E6547 0x6C65746E 0x49656E69
0x00000001 0x000206A7 0x00100800 0x1FBAE3FF 0xBFEBFBFF
0x00000002 0x76035A01 0x00F0B0FF 0x00000000 0x00CA0000
0x00000003 0x00000000 0x00000000 0x00000000 0x00000000
0x00000004 0x1C004121 0x01C0003F 0x0000003F 0x00000000
0x00000004 0x1C004122 0x01C0003F 0x0000003F 0x00000000
0x00000004 0x1C004143 0x01C0003F 0x000001FF 0x00000000
0x00000004 0x1C03C163 0x02C0003F 0x00001FFF 0x00000006
0x00000005 0x00000040 0x00000040 0x00000003 0x00001120
0x00000006 0x00000077 0x00000002 0x00000009 0x00000000
0x00000007 0x00000000 0x00000000 0x00000000 0x00000000
0x00000008 0x00000000 0x00000000 0x00000000 0x00000000
0x00000009 0x00000000 0x00000000 0x00000000 0x00000000
0x0000000A 0x07300803 0x00000000 0x00000000 0x00000603
0x0000000B 0x00000001 0x00000001 0x00000100 0x00000000
0x0000000B 0x00000004 0x00000004 0x00000201 0x00000000
0x0000000C 0x00000000 0x00000000 0x00000000 0x00000000
0x0000000D 0x00000007 0x00000340 0x00000340 0x00000000
0x80000000 0x80000008 0x00000000 0x00000000 0x00000000
0x80000001 0x00000000 0x00000000 0x00000001 0x28100800
0x80000002 0x20202020 0x20202020 0x65746E49 0x2952286C
0x80000003 0x726F4320 0x4D542865 0x35692029 0x3035322D
0x80000004 0x50432030 0x20402055 0x30332E33 0x007A4847
0x80000005 0x00000000 0x00000000 0x00000000 0x00000000
0x80000006 0x00000000 0x00000000 0x01006040 0x00000000
0x80000007 0x00000000 0x00000000 0x00000000 0x00000100
0x80000008 0x00003024 0x00000000 0x00000000 0x00000000

MSR 0x0000001B 0x00000000 0xFEE00900
MSR 0x0000003A 0x00000000 0x00000001
MSR 0x000001A0 0x00000000 0x00850089
MSR 0x000000CE 0x00001000 0x60012100
MSR 0x00000017 0x00040000 0x00000000
MSR 0x00000035 0x00000000 0x00040004
MSR 0x000000C1 0x00000000 0x00000000
MSR 0x000000C2 0x00000000 0x00000000
MSR 0x000000C3 0x00000000 0x00000000
MSR 0x000000C4 0x00000000 0x00000000
MSR 0x00000186 0x00000000 0x00000000
MSR 0x00000187 0x00000000 0x00000000
MSR 0x000001AD 0x00000000 0x22232425
MSR 0x00000194 0x00000000 0x00080000
MSR 0x0000019A 0x00000000 0x00000000
MSR 0x000001A4 0x00000000 0x00000000
MSR 0x000001B1 0x00000000 0x88320000
MSR 0x000001FC 0x00000000 0x0004005F
MSR 0x00000601 0x00000000 0x80001FFF
MSR 0x00000602 0x00000000 0x80001FFF
MSR 0x00000606 0x00000000 0x000A1003
MSR 0x00000610 0x800083C0 0x001487F8
MSR 0x00000611 0x00000000 0x2EC385D9
MSR 0x00000639 0x00000000 0x1DEB012E
MSR 0x00000641 0x00000000 0x008FA10B
MSR 0x00000614 0x000A03C0 0x01E002F8
MSR 0x0000019C 0x00000000 0x88320000
MSR 0x000001A2 0x00000000 0x00621200
MSR 0x00000198 0x000026E9 0x00002400
MSR 0x00000199 0x00000000 0x00002500

CPU Thread 1
APIC ID 2
Topology Processor ID 0, Core ID 1, Thread ID 0
Type 01020105h
Max CPUID level 0000000Dh
Max CPUID ext. level 80000008h
Cache descriptor Level 1, D, 32 KB, 2 thread(s)
Cache descriptor Level 1, I, 32 KB, 2 thread(s)
Cache descriptor Level 2, U, 256 KB, 2 thread(s)
Cache descriptor Level 3, U, 6 MB, 16 thread(s)

CPUID
0x00000000 0x0000000D 0x756E6547 0x6C65746E 0x49656E69
0x00000001 0x000206A7 0x02100800 0x1FBAE3FF 0xBFEBFBFF
0x00000002 0x76035A01 0x00F0B0FF 0x00000000 0x00CA0000
0x00000003 0x00000000 0x00000000 0x00000000 0x00000000
0x00000004 0x1C004121 0x01C0003F 0x0000003F 0x00000000
0x00000004 0x1C004122 0x01C0003F 0x0000003F 0x00000000
0x00000004 0x1C004143 0x01C0003F 0x000001FF 0x00000000
0x00000004 0x1C03C163 0x02C0003F 0x00001FFF 0x00000006
0x00000005 0x00000040 0x00000040 0x00000003 0x00001120
0x00000006 0x00000077 0x00000002 0x00000009 0x00000000
0x00000007 0x00000000 0x00000000 0x00000000 0x00000000
0x00000008 0x00000000 0x00000000 0x00000000 0x00000000
0x00000009 0x00000000 0x00000000 0x00000000 0x00000000
0x0000000A 0x07300803 0x00000000 0x00000000 0x00000603
0x0000000B 0x00000001 0x00000001 0x00000100 0x00000002
0x0000000B 0x00000004 0x00000004 0x00000201 0x00000002
0x0000000C 0x00000000 0x00000000 0x00000000 0x00000000
0x0000000D 0x00000007 0x00000340 0x00000340 0x00000000
0x80000000 0x80000008 0x00000000 0x00000000 0x00000000
0x80000001 0x00000000 0x00000000 0x00000001 0x28100800
0x80000002 0x20202020 0x20202020 0x65746E49 0x2952286C
0x80000003 0x726F4320 0x4D542865 0x35692029 0x3035322D
0x80000004 0x50432030 0x20402055 0x30332E33 0x007A4847
0x80000005 0x00000000 0x00000000 0x00000000 0x00000000
0x80000006 0x00000000 0x00000000 0x01006040 0x00000000
0x80000007 0x00000000 0x00000000 0x00000000 0x00000100
0x80000008 0x00003024 0x00000000 0x00000000 0x00000000

MSR 0x0000001B 0x00000000 0xFEE00800
MSR 0x0000003A 0x00000000 0x00000001
MSR 0x000001A0 0x00000000 0x00850089
MSR 0x000000CE 0x00001000 0x60012100
MSR 0x00000017 0x00040000 0x00000000
MSR 0x00000035 0x00000000 0x00040004
MSR 0x000000C1 0x00000000 0x00000000
MSR 0x000000C2 0x00000000 0x00000000
MSR 0x000000C3 0x00000000 0x00000000
MSR 0x000000C4 0x00000000 0x00000000
MSR 0x00000186 0x00000000 0x00000000
MSR 0x00000187 0x00000000 0x00000000
MSR 0x000001AD 0x00000000 0x22232425
MSR 0x00000194 0x00000000 0x00080000
MSR 0x0000019A 0x00000000 0x00000000
MSR 0x000001A4 0x00000000 0x00000000
MSR 0x000001B1 0x00000000 0x88320000
MSR 0x000001FC 0x00000000 0x0004005F
MSR 0x00000601 0x00000000 0x80001FFF
MSR 0x00000602 0x00000000 0x80001FFF
MSR 0x00000606 0x00000000 0x000A1003
MSR 0x00000610 0x800083C0 0x001487F8
MSR 0x00000611 0x00000000 0x2EC481DF
MSR 0x00000639 0x00000000 0x1DEBAA19
MSR 0x00000641 0x00000000 0x008FA3D0
MSR 0x00000614 0x000A03C0 0x01E002F8
MSR 0x0000019C 0x00000000 0x88320000
MSR 0x000001A2 0x00000000 0x00621200
MSR 0x00000198 0x0000261C 0x00002300
MSR 0x00000199 0x00000000 0x00002500

CPU Thread 2
APIC ID 4
Topology Processor ID 0, Core ID 2, Thread ID 0
Type 01020105h
Max CPUID level 0000000Dh
Max CPUID ext. level 80000008h
Cache descriptor Level 1, D, 32 KB, 2 thread(s)
Cache descriptor Level 1, I, 32 KB, 2 thread(s)
Cache descriptor Level 2, U, 256 KB, 2 thread(s)
Cache descriptor Level 3, U, 6 MB, 16 thread(s)

CPUID
0x00000000 0x0000000D 0x756E6547 0x6C65746E 0x49656E69
0x00000001 0x000206A7 0x04100800 0x1FBAE3FF 0xBFEBFBFF
0x00000002 0x76035A01 0x00F0B0FF 0x00000000 0x00CA0000
0x00000003 0x00000000 0x00000000 0x00000000 0x00000000
0x00000004 0x1C004121 0x01C0003F 0x0000003F 0x00000000
0x00000004 0x1C004122 0x01C0003F 0x0000003F 0x00000000
0x00000004 0x1C004143 0x01C0003F 0x000001FF 0x00000000
0x00000004 0x1C03C163 0x02C0003F 0x00001FFF 0x00000006
0x00000005 0x00000040 0x00000040 0x00000003 0x00001120
0x00000006 0x00000077 0x00000002 0x00000009 0x00000000
0x00000007 0x00000000 0x00000000 0x00000000 0x00000000
0x00000008 0x00000000 0x00000000 0x00000000 0x00000000
0x00000009 0x00000000 0x00000000 0x00000000 0x00000000
0x0000000A 0x07300803 0x00000000 0x00000000 0x00000603
0x0000000B 0x00000001 0x00000001 0x00000100 0x00000004
0x0000000B 0x00000004 0x00000004 0x00000201 0x00000004
0x0000000C 0x00000000 0x00000000 0x00000000 0x00000000
0x0000000D 0x00000007 0x00000340 0x00000340 0x00000000
0x80000000 0x80000008 0x00000000 0x00000000 0x00000000
0x80000001 0x00000000 0x00000000 0x00000001 0x28100800
0x80000002 0x20202020 0x20202020 0x65746E49 0x2952286C
0x80000003 0x726F4320 0x4D542865 0x35692029 0x3035322D
0x80000004 0x50432030 0x20402055 0x30332E33 0x007A4847
0x80000005 0x00000000 0x00000000 0x00000000 0x00000000
0x80000006 0x00000000 0x00000000 0x01006040 0x00000000
0x80000007 0x00000000 0x00000000 0x00000000 0x00000100
0x80000008 0x00003024 0x00000000 0x00000000 0x00000000

MSR 0x0000001B 0x00000000 0xFEE00800
MSR 0x0000003A 0x00000000 0x00000001
MSR 0x000001A0 0x00000000 0x00850089
MSR 0x000000CE 0x00001000 0x60012100
MSR 0x00000017 0x00040000 0x00000000
MSR 0x00000035 0x00000000 0x00040004
MSR 0x000000C1 0x00000000 0x00000000
MSR 0x000000C2 0x00000000 0x00000000
MSR 0x000000C3 0x00000000 0x00000000
MSR 0x000000C4 0x00000000 0x00000000
MSR 0x00000186 0x00000000 0x00000000
MSR 0x00000187 0x00000000 0x00000000
MSR 0x000001AD 0x00000000 0x22232425
MSR 0x00000194 0x00000000 0x00080000
MSR 0x0000019A 0x00000000 0x00000000
MSR 0x000001A4 0x00000000 0x00000000
MSR 0x000001B1 0x00000000 0x88330000
MSR 0x000001FC 0x00000000 0x0004005F
MSR 0x00000601 0x00000000 0x80001FFF
MSR 0x00000602 0x00000000 0x80001FFF
MSR 0x00000606 0x00000000 0x000A1003
MSR 0x00000610 0x800083C0 0x001487F8
MSR 0x00000611 0x00000000 0x2EC58872
MSR 0x00000639 0x00000000 0x1DEC5EEA
MSR 0x00000641 0x00000000 0x008FA68D
MSR 0x00000614 0x000A03C0 0x01E002F8
MSR 0x0000019C 0x00000000 0x88330000
MSR 0x000001A2 0x00000000 0x00621200
MSR 0x00000198 0x000025F3 0x00002300
MSR 0x00000199 0x00000000 0x00002500

CPU Thread 3
APIC ID 6
Topology Processor ID 0, Core ID 3, Thread ID 0
Type 01020105h
Max CPUID level 0000000Dh
Max CPUID ext. level 80000008h
Cache descriptor Level 1, D, 32 KB, 2 thread(s)
Cache descriptor Level 1, I, 32 KB, 2 thread(s)
Cache descriptor Level 2, U, 256 KB, 2 thread(s)
Cache descriptor Level 3, U, 6 MB, 16 thread(s)

CPUID
0x00000000 0x0000000D 0x756E6547 0x6C65746E 0x49656E69
0x00000001 0x000206A7 0x06100800 0x1FBAE3FF 0xBFEBFBFF
0x00000002 0x76035A01 0x00F0B0FF 0x00000000 0x00CA0000
0x00000003 0x00000000 0x00000000 0x00000000 0x00000000
0x00000004 0x1C004121 0x01C0003F 0x0000003F 0x00000000
0x00000004 0x1C004122 0x01C0003F 0x0000003F 0x00000000
0x00000004 0x1C004143 0x01C0003F 0x000001FF 0x00000000
0x00000004 0x1C03C163 0x02C0003F 0x00001FFF 0x00000006
0x00000005 0x00000040 0x00000040 0x00000003 0x00001120
0x00000006 0x00000077 0x00000002 0x00000009 0x00000000
0x00000007 0x00000000 0x00000000 0x00000000 0x00000000
0x00000008 0x00000000 0x00000000 0x00000000 0x00000000
0x00000009 0x00000000 0x00000000 0x00000000 0x00000000
0x0000000A 0x07300803 0x00000000 0x00000000 0x00000603
0x0000000B 0x00000001 0x00000001 0x00000100 0x00000006
0x0000000B 0x00000004 0x00000004 0x00000201 0x00000006
0x0000000C 0x00000000 0x00000000 0x00000000 0x00000000
0x0000000D 0x00000007 0x00000340 0x00000340 0x00000000
0x80000000 0x80000008 0x00000000 0x00000000 0x00000000
0x80000001 0x00000000 0x00000000 0x00000001 0x28100800
0x80000002 0x20202020 0x20202020 0x65746E49 0x2952286C
0x80000003 0x726F4320 0x4D542865 0x35692029 0x3035322D
0x80000004 0x50432030 0x20402055 0x30332E33 0x007A4847
0x80000005 0x00000000 0x00000000 0x00000000 0x00000000
0x80000006 0x00000000 0x00000000 0x01006040 0x00000000
0x80000007 0x00000000 0x00000000 0x00000000 0x00000100
0x80000008 0x00003024 0x00000000 0x00000000 0x00000000

MSR 0x0000001B 0x00000000 0xFEE00800
MSR 0x0000003A 0x00000000 0x00000001
MSR 0x000001A0 0x00000000 0x00850089
MSR 0x000000CE 0x00001000 0x60012100
MSR 0x00000017 0x00040000 0x00000000
MSR 0x00000035 0x00000000 0x00040004
MSR 0x000000C1 0x00000000 0x00000000
MSR 0x000000C2 0x00000000 0x00000000
MSR 0x000000C3 0x00000000 0x00000000
MSR 0x000000C4 0x00000000 0x00000000
MSR 0x00000186 0x00000000 0x00000000
MSR 0x00000187 0x00000000 0x00000000
MSR 0x000001AD 0x00000000 0x22232425
MSR 0x00000194 0x00000000 0x00080000
MSR 0x0000019A 0x00000000 0x00000000
MSR 0x000001A4 0x00000000 0x00000000
MSR 0x000001B1 0x00000000 0x88330000
MSR 0x000001FC 0x00000000 0x0004005F
MSR 0x00000601 0x00000000 0x80001FFF
MSR 0x00000602 0x00000000 0x80001FFF
MSR 0x00000606 0x00000000 0x000A1003
MSR 0x00000610 0x800083C0 0x001487F8
MSR 0x00000611 0x00000000 0x2EC6749E
MSR 0x00000639 0x00000000 0x1DECF95F
MSR 0x00000641 0x00000000 0x008FA947
MSR 0x00000614 0x000A03C0 0x01E002F8
MSR 0x0000019C 0x00000000 0x88350000
MSR 0x000001A2 0x00000000 0x00621200
MSR 0x00000198 0x000027DF 0x00002500
MSR 0x00000199 0x00000000 0x00002500



Storage
-------------------------------------------------------------------------

USB Device Generic USB Hub, class=0x09, subclass=0x00, vendor=0x8087, product=0x0024
USB Device Generic USB Hub, class=0x09, subclass=0x00, vendor=0x8087, product=0x0024
USB Device USB Composite Device, class=0x00, subclass=0x00, vendor=0x046D, product=0xC52F
USB Device Logitech USB Camera (Webcam 120), class=0xEF, subclass=0x02, vendor=0x046D, product=0x080F

Graphic APIs
-------------------------------------------------------------------------

API ATI I/O
API ADL SDK

Display Adapters
-------------------------------------------------------------------------

Display adapter 0
Name Radeon HD 6850
Codename Barts
Technology 40 nm
Memory type GDDR5
GPU ref clock 27000
PCI device bus 1 (0x1), device 0 (0x0), function 0 (0x0)
Vendor ID 0x1002 (0x1043)
Model ID 0x6739 (0x03B4)


ACPI
-------------------------------------------------------------------------

ACPI Tree
_GPE
_L1D
_L0B
_L0D
_L09
_L06
_PR_
SSDT
CSDT
NCST
NPSS
HNDL
CHDL
TNLP
CINT
PDCV
APSS
PTCI
TSSI
TSSM
C1ST
CMST
CIST
CST_
PDC_
OSC_
P000
_PDC
_OSC
_PCT
_PSS
_PPC
_PSD
_TPC
_PTC
_TSS
_CST
P001
_PDC
_OSC
_PCT
_PSS
_PPC
_PSD
_TPC
_PTC
_TSS
_CST
P002
_PDC
_OSC
_PCT
_PSS
_PPC
_PSD
_TPC
_PTC
_TSS
_CST
P003
_PDC
_OSC
_PCT
_PSS
_PPC
_PSD
_TPC
_PTC
_TSS
_CST
_SB_
PR00
AR00
PR11
AR11
PR12
AR12
PR13
AR13
PR14
AR14
PR16
AR16
PR17
AR17
PR18
AR18
PR01
AR01
PR02
AR02
PR03
AR03
PR04
AR04
PRSA
PRSB
PRSC
PRSD
PRSE
PRSF
PRSG
PRSH
PCI0
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_CID
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_BBN
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MCH_
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MCHR
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NBNV
[ ]
NBSG
[ ]
PEXB
PEXL
MCHB
MCHL
VTDB
VTLN
NPTS
NWAK
CPRB
STAV
BRB_
BRL_
IOB_
IOL_
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MALH
MAML
MAMH
CRS1
CRS2
_STA
_CRS
_OSC
SBRG
_ADR
SPTS
SWAK
APMP
[ ]
APMC
APMS
[ ]
[ ]
[ ]
BRTC
SMIE
[ ]
[ ]
PS1E
[ ]
PS1S
[ ]
SIO1
_HID
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CRS_
_CRS
DCAT
MUT0
ENFG
EXFG
LPTM
UHID
IOID
[ ]
INDX
DATA
[ ]
[ ]
LDN_
[ ]
SCF1
SCF2
SCF3
SCF4
SCF5
SCF6
[ ]
CKCF
[ ]
ACTR
[ ]
IOAH
IOAL
IOH2
IOL2
[ ]
INTR
[ ]
DMCH
[ ]
RGE0
RGE1
RGE2
RGE3
RGE4
RGE5
RGE6
RGE7
RGE8
RGE9
[ ]
OPT0
OPT1
OPT2
OPT3
OPT4
OPT5
OPT6
OPT7
OPT8
OPT9
CGLD
DSTA
DCNT
CRS1
IRQM
DMAM
IO11
IO12
LEN1
CRS2
IRQE
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IO21
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LEN3
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IRQL
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RTC0
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CRS1
CRS2
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PIX0
SIOH
LPCR
S1RS
GPBX
[ ]
[ ]
[ ]
PLED
PCH_
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ICHR
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CWDT
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BUF0
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P0P1
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P0P2
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P0P4
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_PRT
SAT0
_ADR
REGF
_REG
TIM0
TMD0
PIO0
DMA0
PIO1
DMA1
CHNF
CFG2
[ ]
PMPT
PSPT
PMRI
[ ]
SMPT
SSPT
SMRI
[ ]
PSRI
SSRI
[ ]
PM3E
PS3E
SM3E
SS3E
[ ]
PMUT
[ ]
PSUT
[ ]
SMUT
[ ]
SSUT
[ ]
[ ]
PM6E
PS6E
SM6E
SS6E
PMCR
PSCR
SMCR
SSCR
[ ]
PMAE
PSAE
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SSAE
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GMUE
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GSCR
CHN0
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ATAB
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RATA
NATA
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REGF
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TIM0
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PIO0
DMA0
PIO1
DMA1
CHNF
CFG2
[ ]
PMPT
PSPT
PMRI
[ ]
SMPT
SSPT
SMRI
[ ]
PSRI
SSRI
[ ]
PM3E
PS3E
SM3E
SS3E
[ ]
PMUT
[ ]
PSUT
[ ]
SMUT
[ ]
SSUT
[ ]
[ ]
PM6E
PS6E
SM6E
SS6E
PMCR
PSCR
SMCR
SSCR
[ ]
PMAE
PSAE
SMAE
SSAE
GMPT
GMUE
GMUT
GMCR
GSPT
GSUE
GSUT
GSCR
CHN0
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GTM_
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AT01
AT02
AT03
AT04
ATA0
ATA1
ATA2
ATA3
ATAB
CMDC
GTFB
GTF_
RATA
PEX0
_ADR
PXRC
[ ]
[ ]
[ ]
PMS_
PMP_
[ ]
[ ]
HPE_
PCE_
[ ]
HPS_
PCS_
CSS_
SPRT
WPRT
_PRW
_PRT
PEX1
_ADR
PXRC
[ ]
[ ]
[ ]
PMS_
PMP_
[ ]
[ ]
HPE_
PCE_
[ ]
HPS_
PCS_
CSS_
SPRT
WPRT
_PRW
_PRT
PEX2
_ADR
PXRC
[ ]
[ ]
[ ]
PMS_
PMP_
[ ]
[ ]
HPE_
PCE_
[ ]
HPS_
PCS_
CSS_
SPRT
WPRT
_PRW
_PRT
PEX3
_ADR
PXRC
[ ]
[ ]
[ ]
PMS_
PMP_
[ ]
[ ]
HPE_
PCE_
[ ]
HPS_
PCS_
CSS_
SPRT
WPRT
_PRW
_PRT
PEX4
_ADR
PXRC
[ ]
[ ]
[ ]
PMS_
PMP_
[ ]
[ ]
HPE_
PCE_
[ ]
HPS_
PCS_
CSS_
SPRT
WPRT
_PRW
BR16
_ADR
_PRW
_PRT
PEX5
_ADR
PXRC
[ ]
[ ]
[ ]
PMS_
PMP_
[ ]
[ ]
HPE_
PCE_
[ ]
HPS_
PCS_
CSS_
SPRT
WPRT
_PRW
_PRT
PEX6
_ADR
PXRC
[ ]
[ ]
[ ]
PMS_
PMP_
[ ]
[ ]
HPE_
PCE_
[ ]
HPS_
PCS_
CSS_
SPRT
WPRT
_PRW
_PRT
PEX7
_ADR
PXRC
[ ]
[ ]
[ ]
PMS_
PMP_
[ ]
[ ]
HPE_
PCE_
[ ]
HPS_
PCS_
CSS_
SPRT
WPRT
_PRW
HPET
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CRS_
HCNT
[ ]
HPTS
[ ]
HPTE
_STA
_CRS
_INI
GFX0
IGDP
[ ]
[ ]
[ ]
GIVD
[ ]
GUMA
[ ]
[ ]
GMFN
[ ]
[ ]
ASLE
[ ]
GSSE
GSSB
GSES
[ ]
[ ]
CDVL
[ ]
[ ]
LBPC
[ ]
ASLS
M512
M1GB
IGDM
[ ]
SIGN
SIZE
OVER
SVER
VVER
GVER
MBOX
DMOD
[ ]
KSV0
KSV1
CSTE
NSTE
[ ]
[ ]
DRDY
CSTS
CEVT
[ ]
DIDL
DDL2
DDL3
DDL4
DDL5
DDL6
DDL7
DDL8
CPDL
CPL2
CPL3
CPL4
CPL5
CPL6
CPL7
CPL8
CADL
CAL2
CAL3
CAL4
CAL5
CAL6
CAL7
CAL8
NADL
NDL2
NDL3
NDL4
NDL5
NDL6
NDL7
NDL8
ASLP
TIDX
CHPD
CLID
CDCK
SXSW
EVTS
CNOT
NRDY
[ ]
SCIE
GEFC
GXFC
GESF
[ ]
PARM
DSLP
[ ]
ARDY
ASLC
TCHE
ALSI
BCLP
PFIT
CBLV
BCLM
CPFM
EPFM
PLUT
PFMB
CCDV
PCFT
[ ]
GVD1
PHED
BDDC
TCOI
[ ]
[ ]
[ ]
SCIS
[ ]
DBTB
CDCT
SUCC
NVLD
CRIT
NCRT
GSCI
GBDA
SBCB
PDRD
PSTS
OSYS
GNOT
GHDS
GLID
GDCK
PARD
AINT
SCIP
OPTS
OWAK
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DD01
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DD02
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DD03
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DD04
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DD05
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DD06
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_DGS
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DD07
_ADR
_DCS
_DGS
_DSS
DD08
_ADR
_DCS
_DGS
_DSS
SDDL
CDDS
NDDS
MCHP
[ ]
[ ]
TASM
[ ]
BN00
SLPS
PMS0
[ ]
[ ]
RTCS
[ ]
PEXS
WAKS
[ ]
PWBT
[ ]
PWRB
_HID
_UID
_STA
BUFA
IRA0
LNKA
_HID
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_STA
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_CRS
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LNKB
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_STA
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_DIS
_CRS
_SRS
LNKC
_HID
_UID
_STA
_PRS
_DIS
_CRS
_SRS
LNKD
_HID
_UID
_STA
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_CRS
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LNKE
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_UID
_STA
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_DIS
_CRS
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LNKF
_HID
_UID
_STA
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_CRS
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LNKG
_HID
_UID
_STA
_PRS
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_CRS
_SRS
LNKH
_HID
_UID
_STA
_PRS
_DIS
_CRS
_SRS
RMEM
_HID
_UID
RAMB
[ ]
DSAF
PAR0
PAR1
PAR2
PINX
PADD
MPAR
ARBF
REAX
REBX
RECX
REDX
IOB2
[ ]
SMIC
SMIS
ISMI
GMSR
SMSR
PRID
GPRE
GNVS
SNVS
SARM
GAMM
SAMM
_SI_
_TZ_
_REV
_OS_
_OSI
_GL_
SP1O
GPIB
GPIL
PMEB
PMEL
HWMB
HWML
IOES
TCBR
TCLT
SRCB
SRCL
SUSW
PMBS
PMLN
SMIP
APCB
APCL
PM30
HPTB
HPTC
GPBS
GPLN
PEBS
PELN
LAPB
VTDS
VTDL
ACPH
ASSB
AOTB
AAXB
SHPC
PEPM
PEER
PECS
ITKE
AMWV
TOBS
VCPU
SMBS
SMBL
PEHP
IOHW
PICM
_PIC
OSVR
OSFL
MCTH
PRWP
GPRW
WAKP
DEB0
[ ]
DBG8
DEB1
[ ]
DBG9
SS1_
SS2_
SS3_
SS4_
IOST
TOPM
ROMS
RNVS
[ ]
IGDS
TLST
CADL
PADL
CSTE
NSTE
SSTE
NDID
DID1
DID2
DID3
DID4
DID5
DID6
DID7
DID8
KSV0
KSV1
BLCS
BRTL
ALSE
ALAF
ASLB
IBTT
IPAT
ITVF
ITVM
IPSC
IBLC
IBIA
ISSC
I409
I509
I609
I709
IPCF
IDMS
IF1E
HVCO
NXD1
NXD2
NXD3
NXD4
NXD5
NXD6
NXD7
NXD8
GSMI
PAVP
IMON
DSEN
LIDS
KBFG
MSFG
FZTF
[ ]
PIRA
PIRB
PIRC
PIRD
[ ]
PIRE
PIRF
PIRG
PIRH
PSTE
TSTE
[ ]
CADR
[ ]
CBDR
[ ]
LTDR
[ ]
FDDR
[ ]
CALE
CBLE
LTLE
FDLE
[ ]
GLLE
GHLE
KCLE
MCLE
C1LE
C2LE
[ ]
UXDV
RRIO
RDMA
WOTB
WSSB
WAXB
_PTS
_WAK
IORK
[ ]
IOWK
OMSC
_HID
_UID
AMW0
_HID
_UID
_WDG
CCAC
ECD2
EID2
WED2
WMBC
RSMB
WSMB
RSMW
WSMW
RSMK
WSMK
WMBD
_WED
AMWR
AMWN
WQMO
SPEC
DEVP
SDSP
GDSP
DEVS
DSTS
GPID
KBFT
HKEY
CFVS
CFVG
RAMW
_S0_
_S1_
_S3_
_S4_
_S5_
PTS_
WAK_
m
0
l
a b ) Power supply
October 1, 2012 2:05:09 PM

Well, since the motherboard has protection circuitry to detect and report bad power from the PSU and shut down the PC when it does as it seems to be doing, that would be one more reason to suspect your PSU-shaped object from CoolerMaster.
m
0
l
October 1, 2012 2:36:11 PM

on another hand, my gfx card requires 2 2*3 express supplementary power connector.

initially, my current psu only has 1. the technician added one more for me. so does that mean my psu is underpower now? Is it ok for me to just use one 2*3 express supplementary power connector for my gfx card. will it cause hardware failure overtime?

i don't get it that everything works ok at his shop and it becomes nasty and problematic at my place.
m
0
l
a b ) Power supply
October 1, 2012 2:51:07 PM

Your PC should use less than 300W which should technically be well within a reasonable quality 525W PSU's capabilities.

If the PC works fine at the shop but not in your home, it could be that line voltage is lower than the shop and this could be enough to change a borderline PSU's behavior.
m
0
l
a b ) Power supply
October 1, 2012 8:54:52 PM

These issues are well reported at the Windows 7 Event log -- usually as Kernel-Power issue.

Go to start > Control Panel > System and Security > Administrative Tools > Event Log

See what it says -- it says the date and time the issues happen, then post it here for further appreciation.

m
0
l
October 1, 2012 11:57:40 PM

InvalidError said:
Your PC should use less than 300W which should technically be well within a reasonable quality 525W PSU's capabilities.

If the PC works fine at the shop but not in your home, it could be that line voltage is lower than the shop and this could be enough to change a borderline PSU's behavior.


The only difference I believe between the repair shop and mine is that they have air conditioning. Mine's just normal ventilation. or the other case, is that my pc is trolling me.
and is CPU fan running at 2000 rpm normal?
also, if my gfx card requires 2 6pin supplementary power connectors, can i just run with one?

i'm sorry i'm at work now and can't access the event log. i'll post here when i get it.
m
0
l
a b ) Power supply
October 2, 2012 12:12:21 AM

~2000RPM for the stock HSF is normal.

If the GPU has two 6-pin PCIe connectors, it usually requires both for normal operation and the box often includes a molex-to-6pin adapter to accommodate PSUs that only have one 6pin PCIe power cable. This gets the job done assuming the PSU is of good enough quality. Problem is that CoolerMaster is generally considered a sub-par PSU brand, which means you may very well be on the wrong side of the quality curve.
m
0
l
October 2, 2012 1:43:58 AM

InvalidError said:
~2000RPM for the stock HSF is normal.

If the GPU has two 6-pin PCIe connectors, it usually requires both for normal operation and the box often includes a molex-to-6pin adapter to accommodate PSUs that only have one 6pin PCIe power cable. This gets the job done assuming the PSU is of good enough quality. Problem is that CoolerMaster is generally considered a sub-par PSU brand, which means you may very well be on the wrong side of the quality curve.


on the otherhand speedfan showing that one of my fans are running at 6000rpm. The 2000rpm value i quoted was from HWmonitor
which of the following brands in my market would you recommend then?

Corsair, Andyson, Antec, HEC, Seasonic, Thermaltake, FSP
m
0
l
a b ) Power supply
October 2, 2012 1:56:08 AM

Corsair is generally fine, Antec too. Seasonic is one of the best out there. On the FSP side, their Aurum series is good but expensive.

You can go browse hardwaresecrets and johnnyguru for more inspiration and get an idea of how good/bad each brand tends to be and how bad/not-so-bad each's weaknesses are.
m
0
l
a c 111 ) Power supply
October 2, 2012 2:06:50 AM

Corsair, Seasonic, Antec, FSP.
m
0
l
October 2, 2012 4:19:29 AM

the repair shop told me, after i told them my pc symptoms(power surge), that i should do a reformat and clean installation of windows and check again. is this valid?

2nd step is that after the reformat, i would be able to determine if my mobo is overheating. As i recall, the only difference between their shop and mine is that theirs is air-conditioned.

should i follow their instructions?
m
0
l
a b ) Power supply
October 2, 2012 4:43:46 AM

Power surges are a hardware problem. It is highly unlikely that re-installing the OS will help that in any way.

No need to re-install the OS to check whether or not your motherboard is overheating either, just need to look at max temperatures in HWMonitor and you'll know - assuming HWMonitor reads your board's SMBus properly.

When you have a flaky PSU, every little bit is susceptible of making or breaking things. When people call CM "CrapperMaster" because most of their PSUs fail hot-box tests at 50C, CM responds that their PSUs are only rated at 25C. This is a rather pathetic excuse since a PSU will rarely get to run at less than 35C under remotely significant load, particularly in a top-mount case.

You can follow their instructions if you want to shut them up but my bet is that you will be wasting your time and get the same results.
m
0
l
October 2, 2012 4:53:38 AM

alright. thanks for the advice. before i get my spare psu, i should get the kernel power issue checked right? as suggested by jenm
m
0
l
October 2, 2012 9:45:38 AM

jemm said:
These issues are well reported at the Windows 7 Event log -- usually as Kernel-Power issue.

Go to start > Control Panel > System and Security > Administrative Tools > Event Log

See what it says -- it says the date and time the issues happen, then post it here for further appreciation.


i see a lot of events but can't pinpoint which is which. do i look under hardware events?
m
0
l
a b ) Power supply
October 2, 2012 12:06:39 PM

Event Log will not not tell you a lot -- usually it points out to an online page that will not help you at all.

The point in having a look at Event Log is to make sure if the crashes are related to a power issue or not.

One thing you could do before you get a brand new PSU is to go to the shop and ask them to test your system with a different PSU, but it seems that the shopper is not very keen to help you, which is very typical.

CORSAIR Builder Series CX500 V2 500W http://www.newegg.com/Product/Product.aspx?Item=N82E168...
m
0
l
a b ) Power supply
October 2, 2012 1:05:38 PM

jemm said:
One thing you could do before you get a brand new PSU is to go to the shop and ask them to test your system with a different PSU, but it seems that the shopper is not very keen to help you, which is very typical.

Not much point in doing that since according to OP, the system runs fine with the current PSU when the repair shop tests it.

There are at least three variables that may be at play there and causing the CM to work at one location but not the other:
1- site voltage
2- site wiring
3- temperature
m
0
l
October 2, 2012 4:17:06 PM

just bought a new psu. FSP raider 650W. so far so good. will post back. I went for it cuz i read quite a few threads and it all seems to be pointing towards psu. shd i get the other faulty one checked? since it's under warranty.
m
0
l
a b ) Power supply
October 2, 2012 5:07:15 PM

kChaste said:
shd i get the other faulty one checked? since it's under warranty.

Sure, if shipping is covered by CM or your local shop has some sort of free/cheap arrangements for warranty service. If you are lucky, you might end up with a working spare PSU instead of a wobbly paperweight.
m
0
l
a b ) Power supply
October 3, 2012 1:52:47 AM

InvalidError said:
Sure, if shipping is covered by CM or your local shop has some sort of free/cheap arrangements for warranty service. If you are lucky, you might end up with a working spare PSU instead of a wobbly paperweight.


According to your response to my post a brand new PSU will not solve the problem, eh?

InvalidError said:
Not much point in doing that since according to OP, the system runs fine with the current PSU when the repair shop tests it.

There are at least three variables that may be at play there and causing the CM to work at one location but not the other:
1- site voltage
2- site wiring
3- temperature

m
0
l
a b ) Power supply
October 3, 2012 2:07:17 AM

jemm said:
According to your response to my post a brand new PSU will not solve the problem, eh?

A brand-new higher quality PSU should:
1- have better tolerances to input voltage fluctuations
2- have better tolerance to wiring faults (although such faults if applicable really should be looked into rather than glossed over)
3- have better tolerance to higher operating temperatures

Your existing CM PSU might be operating fine by CM's QA standards but fail due location/build-specific conditions. A good PSU should not be that touchy/flaky but this may (or not) be standard for CM.
m
0
l
October 3, 2012 3:45:50 AM

Proximon said:
Regardless, the CM Extreme2 is not a good series.

http://www.hardwaresecrets.com/article/Cooler-Master-Ex...
read the conclusion.


I guess for normal gameplay is alright. I was previously using Radeon HD 66XX GPU without the need of supplementary 6pin connectors. and it was fine

then i bought the current gfx card which i think it over-stressed the PSU for around a month while playing bf3?

well, the thing to consider is i'm not sure if bf3, over the past month, released anything that increase tax on the GPU, thus affecting PSU?
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a b ) Power supply
October 3, 2012 3:58:58 AM

kChaste said:
well, the thing to consider is i'm not sure if bf3, over the past month, released anything that increase tax on the GPU, thus affecting PSU?

The more likely explanation is that gaming on the flaky CM PSU accelerated its aging until it became too borderline to continue working well enough to keep your other components happy.

It is not your PC's power requirements that went up, it is the PSU's capabilities that got worse due to poor design.
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October 3, 2012 4:46:41 AM

InvalidError said:
The more likely explanation is that gaming on the flaky CM PSU accelerated its aging until it became too borderline to continue working well enough to keep your other components happy.

It is not your PC's power requirements that went up, it is the PSU's capabilities that got worse due to poor design.


I see. Are you an advocate against CM? haha
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a b ) Power supply
October 3, 2012 5:24:20 AM

kChaste said:
I see. Are you an advocate against CM? haha

If you stick around the forum for a while and read threads about boot-looping, mysterious rebooting, etc., the PSU ends up being the cause something like 90% of the time. I have personally owned and repaired many cheap PSUs over the past 10 years and it can take as little as $2 worth in parts to turn a piece of crap into something stable that will last a long time. If the manufacturers used similar better quality parts off-the-bat, those improved PSUs would cost less than $0.30 more to build.

I'm not so much against CM as I am against any manufacturer cutting corners worth less than $1 on a $50-500 device that spells the difference between something that will die within months or soon after the warranty expires and something that will last 5+ years. I would much prefer paying $5 extra up-front ($4 extra in the manufacturer's pockets) and not have to spend $2 on parts and a few hours to disassemble+reassemble to repair those devices later while they are still within what I would expect to still be within their useful life... when I bought my cheapo 24" LG LCD, I was expecting to use it for 5+ years but I had to re-cap its PSU because it was starting to fail at turning back on from standby during its second year.

I hate when electronics fail due to excessively greedy corner-cutting. Stuff like LCDs that should have a very long useful life should carry a minimum warranty of 3+ years. This is a lot of unnecessary and easily avoidable e-Waste.
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a c 111 ) Power supply
October 3, 2012 5:26:13 AM

They're very "unstable," leave it at that.
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a b ) Power supply
October 3, 2012 10:03:26 AM

Cooler Master does not make PSUs of course. They buy PSUs from various companies. Some of the designs they buy are bad, and some of the labels they use are false.
It's possible to buy a decent PSU from them, but usually when they sell one they want too much for it.

So yes, you will find a lot of prejudice against CM PSUs... but then we are always recommending their cases. They even sell reasonable cheap case fans.

And as the article mentioned I think, CM PSUs are sold EVERYWHERE. You can find those cheap PSUs in countries where the only other PSUs are actually WORSE. Although, usually in those areas FSP has some better offerings.
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October 3, 2012 11:56:28 PM

I guess it's really the PSU afterall. Just a side question. should i install another chassis fan to my system, how effective would it be to reduce my cpu core temperature? and how do i connect the power plug to it?

my cpu temp hit 70 deg while gaming. i know it's not the threshold but is it a bit too hot?
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a b ) Power supply
October 4, 2012 12:47:47 AM

kChaste said:
my cpu temp hit 70 deg while gaming. i know it's not the threshold but is it a bit too hot?

If you are using the stock HSF without a rear exhaust fan, 70C might be normal.

If you have no rear exhaust for the CPU area, that would be the first fan I would add, followed by front intakes if you have any vacant spots there.

If you still get around 70C, you might want to re-install your HSF or go aftermarket. While CM sells many lousy PSUs, their inexpensive Hyper 212 EVO ($28 on Amazon) is one of the best budget HSFs money can buy out there... if it fits in your motherboard/case/RAM configuration.
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October 4, 2012 1:05:32 AM

InvalidError said:
If you are using the stock HSF without a rear exhaust fan, 70C might be normal.

If you have no rear exhaust for the CPU area, that would be the first fan I would add, followed by front intakes if you have any vacant spots there.

If you still get around 70C, you might want to re-install your HSF or go aftermarket. While CM sells many lousy PSUs, their inexpensive Hyper 212 EVO ($28 on Amazon) is one of the best budget HSFs money can buy out there... if it fits in your motherboard/case/RAM configuration.


hmm... every CPU has a HSF system right? I do have a rear exhaust fan underneath my PSU. I guess I can install a fan underneath my DVD drive, which is a space between my hard disks and the DVD drive. is that a feasible spot? what about the side casing which can be slide apart? can a fan be installed there as well?
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a b ) Power supply
October 4, 2012 1:11:37 AM

70C for an i5-2500 under load is normal, just do not let it go over 72.6C, which is the max temp for your CPU.

I´d get the Hyper 212 EVO InvalidError suggested you tough -- it will make things cooler -- and yes, definitively get those cases fans installed -- you won´t regret that.
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October 4, 2012 1:17:18 AM

jemm said:
70C for an i5-2500 under load is normal, just do not let it go over 72.6C, which is the max temp for your CPU.

I´d get the Hyper 212 EVO InvalidError suggested you tough -- it will make things cooler -- and yes, definitively get those cases fans installed -- you won´t regret that.


the difference between 72.6 and 72 is very close which worries me. Btw, how did u find out about that? I thought the threshold was 98 deg iirc when i saw at the BIOS screen.

Btw, would it void my warranty if i replace the stock HSF?
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a b ) Power supply
October 4, 2012 1:38:18 AM

"Feasible spots" are where the case has mounting holes that allow fans to either bring fresh air in or blow hot air out. Cases usually have at least one side-panel fan mount and some combination of bottom and front fan mounts. Those 3-4 locations are usually configured as intakes.

If your rear fan is already configured as exhaust, your CPU shouldn't be hitting 70C unless there is a mounting issue with the HSF or you are overclocking. But 70C is not really worth worrying about (yet) so if you do not really feel like messing around with re-pasting the HSF, you can leave it as-is for the time being.
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October 4, 2012 1:43:20 AM

InvalidError said:
"Feasible spots" are where the case has mounting holes that allow fans to either bring fresh air in or blow hot air out. Cases usually have at least one side-panel fan mount and some combination of bottom and front fan mounts. Those 3-4 locations are usually configured as intakes.

If your rear fan is already configured as exhaust, your CPU shouldn't be hitting 70C unless there is a mounting issue with the HSF or you are overclocking. But 70C is not really worth worrying about (yet) so if you do not really feel like messing around with re-pasting the HSF, you can leave it as-is for the time being.


alright. that's cool to know(no pun intended). I realise there are several modes my mobo can run at BIOS. like silent, standard and turbo. The graphic difference displayed between the modes shows that only noise increases. Does these modes actually make my HSF run faster(more cooling effect)?
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a b ) Power supply
October 4, 2012 1:44:13 AM

72C is the max package temperature while 98C is the max junction (core) temperature.

As for replacing the stock HSF, there is no warranty problem with that but you need to stash the stock HSF somewhere because you have to send it back with the CPU if you ever need to do an RMA on it.
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a b ) Power supply
October 4, 2012 6:31:02 AM

InvalidError said:
72C is the max package temperature while 98C is the max junction (core) temperature.


While I'm not sure where these numbers come from, they sound about right. However, I don't think they tell the whole story. I'm seeing memory related errors from CPUs that are hitting somewhere in the 70's max core temps. (well, mostly on IB) And, 70C while gaming is far different than 70C under full load, say Prime95.
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October 4, 2012 7:05:21 AM

Proximon said:
While I'm not sure where these numbers come from, they sound about right. However, I don't think they tell the whole story. I'm seeing memory related errors from CPUs that are hitting somewhere in the 70's max core temps. (well, mostly on IB) And, 70C while gaming is far different than 70C under full load, say Prime95.


so i should be slightly concerned about it? how long does a full prime95 test run?
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a b ) Power supply
October 4, 2012 7:16:52 AM

Forever, but generally you don't need to run it long. More than anything else, it's used to test temps and overclocking stability, If your CPU is air cooled it will hit its max temps in a minute or three.... always run Prime95 with a monitoring program running first. Real Temp or HWMonitor.

Be aware that you have to tell it to exit... closing the window in Prime95 just minimizes to the system tray.
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October 4, 2012 7:27:11 AM

Proximon said:
Forever, but generally you don't need to run it long. More than anything else, it's used to test temps and overclocking stability, If your CPU is air cooled it will hit its max temps in a minute or three.... always run Prime95 with a monitoring program running first. Real Temp or HWMonitor.

Be aware that you have to tell it to exit... closing the window in Prime95 just minimizes to the system tray.


alright. Thanks for the info. I'll try prime 95 and post results here.

on a side note, I happened to click the link on your post about PSU guide. and i realised that 525W EX2 CM PSU only has like 480W based on the calculations mentioned on your thread and it is not sufficient to feed my GPU.

http://www.coolermaster-usa.com/product.php?product_id=...
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a b ) Power supply
October 4, 2012 7:42:09 AM

The specs they claim don't mean anything. I'm fairly certain the PSU won't deliver even 480W... but your system doesn't actually use more than 300W.

Not sure what calculations you mean... A 6850 overclocked still only needs about 160W, and the rest of your system much less than that.

You just need to understand that there are many other factors in evaluating a good PSU. When you get gas at the pump it doesn't make any difference what the listed octane is, if there is water mixed in.
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October 4, 2012 9:24:14 AM

Hi Moderator, I would like to state that this thread's problem is solved.

I was just manipulating the calculations of Voltage X current = wattage as your thread suggested.

Ok, just ran prime95 for a short while and am registering reading of maximum of 85 deg C on core #3.

so... please advice further.
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