F2-6400CL5D-4GBPQ RAM setting in BIOS

[agskilluser]

Hi,

I have builts a system a while ago with:

MB: GIGABYTE GA-G41M-ES2H LGA 775 Intel G41 HDMI Micro ATX Intel Motherboard
CPU: Intel Core 2 Quad Q9400
RAM: GSKILL F2-6400CL5D-4GBPQ
PSU: Corsair CMPSU-550VX
OS: Windows 7

Computer has been restarting by itself pretty randomly. Even if I turn auto restart off in windows. I have BIOS settings for RAM all set in AUTO. I am wondering if restart is related to RAM setting.

I tried to run prime95 overnight before, and it was ok, ran video card stability test and it was ok, ran mem test for few hours and it was okay. I have already exchanged MB and PSU. Used core temp to check temperature, and most of the time two of the cores are ~36 degree celsius and the other two are pretty much at 51 degree celsius all the time. I am not sure what the problem was, I have even tried reinstalled windows and it still happens. Computer is also protected by firewall and antivirus. Can anyone shine some light on me please? THANKS!

[GSKILL TECH]

Test one stick at a time to see if one module may be causing the problem.

Thank you
GSKILL TECH

[agskilluser]

Thanks for your reply, so does it mean that I should just leave bios settings to auto and try?

[GSKILL TECH]

Yes, this memory is within standard, so it should be plug and play.

Thank you
GSKILL TECH

[agskilluser]

thanks, I tested both ram separately, and computer restarts randomly with either ram , so I guess it shouldn't be a RAM problem? I am starting to think that it is a CPU problem. Do you have any suggestion? Or should I stop bothering you guys since it is not a ram problem.

[GSKILL TECH]

Both modules could be defective too.. try running memtest86+ to see what the results are with each module.

We'll be glad to help even if it is non-memory related.

Thank you
GSKILL TECH

[agskilluser]

Hi I am trying memtest86+ v4.10
When I am running the test with single memory for now, it shows that the memory is at 400MHz, I am wondering why is that, shouldn't it be at 800MHZ? System Memory Multiplier in Bios is set to AUTO and Memory Frequency is shown as 800MHZ in Bios.

[agskilluser]

Hi, I have ran Memtest 86+ for both RAMS over night seperately, and there was no error.
Does it mean that I can isolate the problem to CPU or HD?

[agskilluser]

sorry for asking so many que at one time, this problem has frustrated me for a while, should I try setting the ram manually like this post:

http://gskill.us/forum/showthread.php?t=1263

[GSKILL TECH]

You can do that, but it is not required. This memory should detect automatically. Where do you see 400MHz? Depends on where you are looking, it may be correct. 400MHz x 2 = DDR2-800

Thank you
GSKILL TECH

[agskilluser]

so saying that, the settings for the memories should not be the cause of the porblem. What else can I do to find out the porblem then? So I guess what's left are the HD and the CPU.

[Tradesman]

Might want to see if you have a spare or can borrow a different PSU (power supply). If it's powering off totaly at random could be the PSU is insufficient or starting to go south on you.

[agskilluser]

Thasnk for you reply tradesman, I actually suspected that before, so I switched PSU, and as you've said, it worked, so I RMA my corsair PSU, the one I am using now is a new one from corsair... so I guess it shouldn't be the PSU's problem?