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PC shuts down randomly!

Hi,


I have a Core 2 Duo desktop. The problem is that since some time it occasionally shuts down. Some times it just shuts down. Then until I disconnect the electric power cord for some minutes it does not start. Sometimes it just shuts down and restarts automatically. Also when I start the PC the power supply fan makes a lot of noise. Therefore today I cleaned the dust inside it with a blower in the hope that my problem is solved. Also now the fan is not making any noise. But again after 2-3 hours of usage it shut down and restart automatically. Kindly inform me what the problem could be and how I could solve it. Best regards. :)
6 answers Last reply Best Answer
More about shuts randomly
  1. the power supply is giving up on you
    get a new one
  2. If you can answer a few questions it could help narrow the cause down.

    1. is this happening when you put the PC under load from playing games, or editing software.

    2. how old is your power supply unit, and its make/model.

    3. have you recently added any new hardware, like video cards, hard drives or dvd/cd drives?

    4. how are your temperatures? you can get a free program to monitor your hardware here: http://www.cpuid.com/softwares/hwmonitor.html

    be sure to check all the power cables for any loose connections or any damaged cables.

    also try giving the other components in your pc a cleaning and try to remove any dust from the CPU fan and GPU fan.

    With the information provided, it sounds like your PSU is dying, you should be able to pick up a new one, they are generally not very expensive.
  3. warhead0 said:
    If you can answer a few questions it could help narrow the cause down.

    1. is this happening when you put the PC under load from playing games, or editing software.

    2. how old is your power supply unit, and its make/model.

    3. have you recently added any new hardware, like video cards, hard drives or dvd/cd drives?

    4. how are your temperatures? you can get a free program to monitor your hardware here: http://www.cpuid.com/softwares/hwmonitor.html

    be sure to check all the power cables for any loose connections or any damaged cables.

    also try giving the other components in your pc a cleaning and try to remove any dust from the CPU fan and GPU fan.

    With the information provided, it sounds like your PSU is dying, you should be able to pick up a new one, they are generally not very expensive.



    1- No. It happens anytime even when the PC is idle.

    2- I bought this PC three years ago. About the PSU make/model I don't know correctly. Its 550 watts.

    3- I recently got the motherboard replaced.

    4- I will just post the temperatures here after installing this program.

    I have checked the cables. I have just completely cleaned the PC with the blower. The PSU fan still makes noise when I start the PC. I will post the temperatures within a few minutes.
  4. This Cpuid result:


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

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

    HWMonitor version 1.1.9.0

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

    Mainboard Model P5KPL-AM EPU (0x00000331 - 0x6F23FAA0)

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

    LPCIO Vendor Winbond
    LPCIO Model W83627DHG-P
    LPCIO Vendor ID 0x5CA3
    LPCIO Chip ID 0xB0
    LPCIO Revision ID 0x73
    Config Mode I/O address 0x2E
    Config Mode LDN 0xB
    Config Mode registers
    00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
    00 FF FF FF FF FF FF FF 0B FF FF FF FF FF FF FF FF
    10 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
    20 B0 73 FF 00 44 00 00 FF 50 00 00 00 9A 21 00 FF
    30 01 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
    40 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
    50 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
    60 02 90 FF FF FF FF FF FF FF FF FF FF FF FF FF FF
    70 00 FF FF FF FF FF FF FF FF FF FF FF FF FF FF FF
    Register space LPC, base address = 0x0290


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

    Hardware monitor Winbond W83627DHG
    Voltage 0 1.18 Volts [0x93] (CPU VCORE)
    Voltage 1 1.87 Volts [0xEA] (VIN1)
    Voltage 2 3.38 Volts [0xD3] (+3.3V)
    Voltage 3 5.06 Volts [0xD3] (+5V)
    Voltage 4 7.97 Volts [0x8F] (+12V)
    Voltage 5 1.65 Volts [0xCE] (VIN5)
    Voltage 6 0.98 Volts [0x7B] (VIN6)
    Temperature 0 35°C (94°F) [0x23] (SYSTIN)
    Temperature 1 30°C (85°F) [0x3C] (CPUTIN)
    Temperature 2 32°C (88°F) [0x3F] (AUXTIN)
    Fan 0 2519 RPM [0x86] (SYSFANIN)
    Fan 1 959 RPM [0x58] (CPUFANIN0)
    Hardware registers
    Register space LPC, base address = 0x0290
    bank 0
    00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
    00 04 FF 04 4B 31 00 3F 10 01 4B 01 01 3C 3C 0A 05
    10 04 FF 10 00 00 01 01 3C 43 07 00 00 28 FF FF DC
    20 93 EA D3 D3 8F CE 7B 23 86 5B FF DA 00 6F 19 D5
    30 90 5C 50 36 44 4A B3 31 01 56 D8 40 C0 20 D2 FF
    40 03 00 00 FF FF 00 3F 25 2D 02 00 C4 10 95 00 A3
    50 FF FF 00 FF FF FF 00 80 C1 40 FF FF 19 C0 00 05
    60 04 7F 40 00 01 01 3C FF 12 FF 01 FF FF FF FF 00
    70 00 00 00 00 00 0E 7F 7F 7F 7F 7F 7F 01 27 FF FF
    80 04 FF 04 4B 31 00 3F 10 01 4B 01 01 3C 3C 0A 05
    90 04 FF 10 00 00 01 01 3C 43 07 00 00 28 FF FF DC
    A0 93 EA D3 D3 8F CE 7B 23 86 5B FF DA 00 6F 19 D5
    B0 90 5C 50 36 44 4A B3 31 01 56 D8 40 C0 20 D2 FF
    C0 03 00 00 FF FF 00 3F 25 2D 02 00 C4 10 95 00 A3
    D0 FF FF 00 FF FF FF 00 80 C1 40 FF FF 19 C0 00 05
    E0 04 7F 40 00 01 01 3C FF 12 FF 01 FF FF FF FF 00
    F0 00 00 00 00 00 0E 7F 7F 7F 7F 7F 7F 01 27 FF FF
    bank 1
    50 1E 00 00 4B 00 50 00 7A 00 00 00 00 00 00 0E FF
    bank 2
    50 1F 80 00 4B 00 50 1A 00 FF FF FF FF FF FF FF FF
    bank 3
    50 00 02 00 01 07 02 01 04 00 00 00 F0 7F 0D 00 00
    bank 4
    50 00 13 FF 00 00 00 00 04 4C 4A 1D B8 09 5F 20 7F


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

    Number of processors 1
    Number of threads 2

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

    Processor 0
    -- Core 0
    -- Thread 0 0
    -- Core 1
    -- Thread 0 1

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

    Processor 1 ID = 0
    Number of cores 2 (max 2)
    Number of threads 2 (max 2)
    Name Intel Core 2 Duo E6550
    Codename Conroe
    Specification Intel(R) Core(TM)2 Duo CPU E6550 @ 2.33GHz
    Package (platform ID) Socket 775 LGA (0x0)
    CPUID 6.F.B
    Extended CPUID 6.F
    Core Stepping G0
    Technology 65 nm
    Core Speed 2000.0 MHz
    Multiplier x FSB 6.0 x 333.3 MHz
    Rated Bus speed 1333.3 MHz
    Stock frequency 2333 MHz
    Instructions sets MMX, SSE, SSE2, SSE3, SSSE3, EM64T, VT-x
    L1 Data cache 2 x 32 KBytes, 8-way set associative, 64-byte line size
    L1 Instruction cache 2 x 32 KBytes, 8-way set associative, 64-byte line size
    L2 cache 4096 KBytes, 16-way set associative, 64-byte line size
    FID/VID Control yes
    FID range 6.0x - 7.0x
    Max VID 1.350 V


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

    CPU Thread 0
    APIC ID 0
    Topology Processor ID 0, Core ID 0, Thread ID 0
    Type 01008001h
    Max CPUID level 0000000Ah
    Max CPUID ext. level 80000008h
    Cache descriptor Level 1, D, 32 KB, 1 thread(s)
    Cache descriptor Level 1, I, 32 KB, 1 thread(s)
    Cache descriptor Level 2, U, 4 MB, 2 thread(s)

    CPUID
    0x00000000 0x0000000A 0x756E6547 0x6C65746E 0x49656E69
    0x00000001 0x000006FB 0x00020800 0x0000E3FD 0xBFEBFBFF
    0x00000002 0x05B0B101 0x005657F0 0x00000000 0x2CB43049
    0x00000003 0x00000000 0x00000000 0x00000000 0x00000000
    0x00000004 0x04000121 0x01C0003F 0x0000003F 0x00000001
    0x00000004 0x04000122 0x01C0003F 0x0000003F 0x00000001
    0x00000004 0x04004143 0x03C0003F 0x00000FFF 0x00000001
    0x00000005 0x00000040 0x00000040 0x00000003 0x00000220
    0x00000006 0x00000001 0x00000002 0x00000001 0x00000000
    0x00000007 0x00000000 0x00000000 0x00000000 0x00000000
    0x00000008 0x00000400 0x00000000 0x00000000 0x00000000
    0x00000009 0x00000000 0x00000000 0x00000000 0x00000000
    0x0000000A 0x07280202 0x00000000 0x00000000 0x00000503
    0x80000000 0x80000008 0x00000000 0x00000000 0x00000000
    0x80000001 0x00000000 0x00000000 0x00000001 0x20100000
    0x80000002 0x65746E49 0x2952286C 0x726F4320 0x4D542865
    0x80000003 0x44203229 0x43206F75 0x20205550 0x45202020
    0x80000004 0x30353536 0x20402020 0x33332E32 0x007A4847
    0x80000005 0x00000000 0x00000000 0x00000000 0x00000000
    0x80000006 0x00000000 0x00000000 0x10008040 0x00000000
    0x80000007 0x00000000 0x00000000 0x00000000 0x00000000
    0x80000008 0x00003024 0x00000000 0x00000000 0x00000000

    MSR 0x0000001B 0x00000000 0xFEE00900
    MSR 0x0000003A 0x00000000 0x00000007
    MSR 0x00000017 0x00000000 0x8800872A
    MSR 0x000000CD 0x00000000 0x00000804
    MSR 0x0000003F 0x00000000 0x000000EA
    MSR 0x000000CE 0x001D072A 0x7F7F071A
    MSR 0x000001A0 0x00000040 0x62972489
    MSR 0x000000EE 0xA8000000 0xC37D5300
    MSR 0x0000011E 0x00000000 0xBE702109
    MSR 0x0000019C 0x00000000 0x883D0000
    MSR 0x00000198 0x072A072A 0x0600072A
    MSR 0x00000199 0x00000000 0x0000072A

    CPU Thread 1
    APIC ID 1
    Topology Processor ID 0, Core ID 1, Thread ID 0
    Type 01008001h
    Max CPUID level 0000000Ah
    Max CPUID ext. level 80000008h
    Cache descriptor Level 1, D, 32 KB, 1 thread(s)
    Cache descriptor Level 1, I, 32 KB, 1 thread(s)
    Cache descriptor Level 2, U, 4 MB, 2 thread(s)

    CPUID
    0x00000000 0x0000000A 0x756E6547 0x6C65746E 0x49656E69
    0x00000001 0x000006FB 0x01020800 0x0000E3FD 0xBFEBFBFF
    0x00000002 0x05B0B101 0x005657F0 0x00000000 0x2CB43049
    0x00000003 0x00000000 0x00000000 0x00000000 0x00000000
    0x00000004 0x04000121 0x01C0003F 0x0000003F 0x00000001
    0x00000004 0x04000122 0x01C0003F 0x0000003F 0x00000001
    0x00000004 0x04004143 0x03C0003F 0x00000FFF 0x00000001
    0x00000005 0x00000040 0x00000040 0x00000003 0x00000220
    0x00000006 0x00000001 0x00000002 0x00000001 0x00000000
    0x00000007 0x00000000 0x00000000 0x00000000 0x00000000
    0x00000008 0x00000400 0x00000000 0x00000000 0x00000000
    0x00000009 0x00000000 0x00000000 0x00000000 0x00000000
    0x0000000A 0x07280202 0x00000000 0x00000000 0x00000503
    0x80000000 0x80000008 0x00000000 0x00000000 0x00000000
    0x80000001 0x00000000 0x00000000 0x00000001 0x20100000
    0x80000002 0x65746E49 0x2952286C 0x726F4320 0x4D542865
    0x80000003 0x44203229 0x43206F75 0x20205550 0x45202020
    0x80000004 0x30353536 0x20402020 0x33332E32 0x007A4847
    0x80000005 0x00000000 0x00000000 0x00000000 0x00000000
    0x80000006 0x00000000 0x00000000 0x10008040 0x00000000
    0x80000007 0x00000000 0x00000000 0x00000000 0x00000000
    0x80000008 0x00003024 0x00000000 0x00000000 0x00000000

    MSR 0x0000001B 0x00000000 0xFEE00800
    MSR 0x0000003A 0x00000000 0x00000007
    MSR 0x00000017 0x00000000 0x8800872A
    MSR 0x000000CD 0x00000000 0x00000804
    MSR 0x0000003F 0x00000000 0x000000EA
    MSR 0x000000CE 0x001D072A 0x7F7F071A
    MSR 0x000001A0 0x00000040 0x62972489
    MSR 0x000000EE 0xA8000000 0xC37D5300
    MSR 0x0000011E 0x00000000 0xBE702109
    MSR 0x0000019C 0x00000000 0x883E0000
    MSR 0x00000198 0x072A072A 0x0600072A
    MSR 0x00000199 0x00000000 0x0000072A


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


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

    API ATI I/O
    API ADL SDK

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

    Display adapter 0
    Name RADEON X700 SE
    GPU ref clock 27000
    PCI device bus 1 (0x1), device 0 (0x0), function 0 (0x0)
    Vendor ID 0x1002 (0x0000)
    Model ID 0x5E4F (0x0000)

    Display adapter 1
    Name RADEON X700 SE Secondary
    PCI device bus 1 (0x1), device 0 (0x0), function 1 (0x1)
    Vendor ID 0x1002 (0x0000)
    Model ID 0x5E6F (0x0001)


    ACPI
    -------------------------------------------------------------------------
  5. Best answer
    My money is on the PSU nearing the end of it's life.

    A replacement PSU will cost roughly up to $60 (USD)

    http://www.newegg.com/Store/Category.aspx?Category=32&name=Power-Supplies


    I hope after replacing the PSU it solves your problems.
  6. Best answer selected by saadgamer.
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