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Help! OC with ga-ep45-ed3p e5200 ddr2-1066

Last response: in Overclocking
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February 4, 2009 10:51:04 PM

Ok so here goes. I'm fairly new to all this, FYI.

I just built my rig with the following specs:
GA-EP45-ED3P
E5200
OCZ Reaper HPC 4GB (2x2GB) DDR2 1066
Sapphire HD4850

I have been trying to overclock it as much as possible but cannot get a stable system with good settings. Right now these settings are causing the system to not pass the post on the first cold boot but once it tries once, it passes.

I appreciate all input. The goal is to get the system using a 400MHz FSB with the RAM at 1066 MHz matched 1:1.

The bios settings are:

MB Intelligent Tweaker(M.I.T.)
Robust Graphics Booster ...............: Fast
CPU Clock Ratio ..........................: 10
Fine CPU Clock Ratio.....................:.0.5
CPU Frequency ...........................: 3.50

Clock Chip Control
Standard Clock Control
CPU Host Clock Control..................: [Enabled]
CPU Host Frequency (Mhz) ............: 333Mhz
PCI Express Frequency (Mhz) .........: 100
C.I.A.2 .......................................: [Disabled]

Advanced Clock Control
CPU Clock Drive...........................: <<< 800
PCI Express Clock Drive.................: <<< 900
CPU Clock Skew (ps)....................: <<< 0
MCH Clock Skew (ps)...................: <<< 0

DRAM Performance Control
Performance Enhance...................: [STANDARD]
Extreme Memory Profile (X.M.P.).....: Disabled
(G)MCH Frequency Latch...............: [Auto]
System Memory Multiplier ..............: 2.40B
Memory Frequency (Mhz) ..............: 800Mhz
DRAM Timing Selectable ................: [Manual]

Standard Timing Control
CAS Latency Time........................5
tRCD .........................................5
tRP'...........................................5
tRAS..........................................18

Advanced Timing Control (all Auto)

Motherboard Voltage Control
Voltage Type.………... Manual
CPU
CPU Vcore….………........................: 1.3
CPU Termination…..... 1.200V*.......: 1.24
CPU PLL…………………....1.500V*.......: 1.5
CPU Reference.………….0.755V*.......: [Auto]

MCH/ICH
MCH Core…………….....1.100V...........: 1.22
MCH Reference….…….0.800V...........: [Auto]
MCH/DRAM Ref.…......0.900V...........: [Auto]
ICH I/O……………….....1.550V............: [Auto]
ICH Core…………...……1.100V............: [Auto]

DRAM
DRAM Voltage ……....1.800V............: 1.96
DRAM Termination .…0.900V............: [Auto]
Channel A Reference 0.900V............: [Auto]
Channel B Reference 0.900V............: [Auto]

Advanced Settings
Limit CPUID Max. to 3.....................: [Disabled]
No-Execute Memory Protect............: [Enabled]
CPU Enhanced Halt (C1E)................: [Disabled]
C2/C2E State Support....................: [Disabled]
x C4/C4E State Support..................: [Disabled]
CPU Thermal Monitor 2(TM2) ...........: [Enabled]
CPU EIST Function.........................: [Disabled]
February 4, 2009 11:54:27 PM

Hint: Ive dealt with 4 different e5200 chips, only one was stable with fsb 333, let alone 400. The one I have currently in my setup maxes at fsb 330 and refuses to go even 1mhz higher. It has high multiplier for a reason, use it.
February 5, 2009 1:41:38 AM

Ok next question is:

Is it better to have a 1:1 matched fsb or to have unmatched memory that is running at 1066mhz?

Or am i missing something and it is possible to have both?
Related resources
February 5, 2009 4:13:45 AM

harozi2 said:
Ok next question is:

Is it better to have a 1:1 matched fsb or to have unmatched memory that is running at 1066mhz?

Or am i missing something and it is possible to have both?


Leave it 1:1 until you've reached a stable OC, then change the RAM ratio.
February 5, 2009 11:20:23 AM

I would leave it at 1:1 and keep it that way. With my e5200 on fsb 330 I run my corsair xms2 ram at 1:1 (dd2 660) with low timings and it feels more responsive than if run it at DDR2 960 via ratio and with higher timings. The winXP and crysis maps also load a bit faster. I guess you should try both options and decide which suits you better, but only(like animal said above) after your OCd system is stable.
February 6, 2009 1:16:17 AM

1066 DDR2Ram can handle a 533 FSB, so you will never hit a 1:1 ratio, I would underclock your ram to 800Mhz and tighten up the timings.
February 6, 2009 6:24:27 AM

I have been doing a little research on the e5200 myself and i seem to have found it does not like to go beyond 330~350FSB, might as well just use the high multiplier it came with. I have a P45 chipset also and just picked one of these up to hold me over till i can get some cash together for the q9550. I should be starting my OC'ing this weekend so i'll let you know how its coming!
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February 6, 2009 12:29:17 PM

The E5200 is a bargain binned processor for a reason - it either failed higher speed tests or part of the cache needed to be turned off.
!