Sudden restarts

[yiso]

Hello folks,

Am getting some problems here with my MA790FXT-UD5P. For some reason, after updating my BIOS from F5 to F8n using @BIOS software, the machine suddenly restarts after 2 to 3 hours from the first boot. After it does, no error messages appears to me ( like blue screen with error numbers).

Any help?

AMD 955 @ Default clock
MA790FXT-UD5P
OCZ AMD BE 4GB @ Default clock
OCZ Vertex2
Tt 750W

Regards,,,

[autotech]

Go back 1 bios if you can and see if the problem persist. Could be a bad bios flash or hardware conflict with new bios or a setting in the new bios causing problems. Easiest way to sort it is load the bios before f8n and see what happens.

[yiso]

I resorted my BIOS to the factory version , which is F5 ( May 2009 version). I been running Prim95 for some time now and nothing serious happened.

It could have been a bad BIOS update. How can I get it right ?

[Vapperhiir]

I think maybe try to flash BIOS again but download it again as new(maybe different site or from Gigabyte site) and don't use @Bios to flash.
Use Qflash with USB stick.
Check this FAQ thread: http://forum.giga-byte.co.uk/index.php/topic,2441.0.html

[yiso]

I just flashed it back to F8n using Qflash .. it was painless than I expected 

Now here are things I made so far:
1- I switch the SATA type to AHCI and As type SATA , as Iam running OCZ vertex2
2- I switched the priority option 1 2 and 3 to disable.
3- I left all options under M.T.I as default for now. I usually under volt my CPU from 1.345 to 1.275 ( been running just fine for a year on old BIOS)

Anything I made wrong? or could be improved ?

Regards,,,

[Dark Mantis]

You might want to check on the firmware versions of your OCZ SSD as they used to have a problem with Gigabyte motherboards and needed flashing to the latest firmware to fix it.

[yiso]

Just flashed it to 1.33

[Dark Mantis]

Hopefully that might have a positive impact on your issue but please keep us in the loop.

[yiso]

Will do

[yiso]

Not sure why this is happening agian, but it just rebooted by itself while I was playing some COD6   

Regards,,,

[Dark Mantis]

If it happens for no apparent reason especially when playing a game or some heavy workload check all your temperatures and see if any are to high.

[yiso]

They never exceed 50C ,as I rump my fans up . Plus I got a H100 with four fans in PP 

[Dark Mantis]

They never exceed 50C ,as I rump my fans up . Plus I got a H100 with four fans in PP  

When you say "They never exceed 50C" what do you mean by "they" ? Also what is the H100 cooling in total ?

[yiso]

They = cores
Corsair H100 , comes with Dual 120MM radiator. Installed 4 fans in total for push/pull

[Dark Mantis]

Yes I am familiar with the Corsair H100 cooler but wasn't sure what you were referring to at the time. So you are saying the CPU cores all stay below 50C ?

What graphics card are you using ?

How is that cooled ?

What temperature is your Northbridge ? And motherboard ?