Problem in games, Prime95

[olikomerc]

My PC is working good and I installed some games (crysis original, test drive unlimited, company of heroes, etc.). When I'm playing these or other games, after ~5-10 min. my PC is turning-off and then starts again.
There isn't BSOD and any other error in Event Viewer. I also unchecked Automaticully Restart.
I made a test with Prime95 and after 8 hours it gave me a FATAL ERROR: Rounding was 0.5, expected less than 0.4. My system is not overclocked, and everything in BIOS (last version 1005) is set to default.
I formatted HDD and installed Win XP SP2, and then tested with Prime95 and again the same error. Then I installed all new Drivers for mobo and vga and tested and same error.

I try to change the RAM from A1/B1 to A2/B2 but still no success. I havent any other components (RAM, CPU, VGA...) to try with them.

???

[Kursah]

hmm...you could reset your CMOS to ensure all stock settings...definately a good thing to do after a Bios Update Flash...

You can try running Memtest ISO bootable CD and see if there's errors there also...but the Rounding error is CPU based...if stock there should be no issues.

Reset your CMOS and let me know how that does.

[DOM]

On prime are you using the Blend test ?

Try one MEM stick at a time see if you get the same error if it runs for 12hrs then try the other

[olikomerc]

Hey, thank you for your answer, but I don't know what is and how to reset the CMOS. I know it is close to battery.

And I forgot to write that I tested the memory with Memtest86 from CD about 6 hours and there wasn't errors. Maybe I should test more hours?

[olikomerc]

Originally Posted by DOM_ATI_X800XL_PCI-E

On prime are you using the Blend test ?

Try one MEM stick at a time see if you get the same error if it runs for 12hrs then try the other

Yes, i tested with Blend test on Prime95.

[Kursah]

Originally Posted by olikomerc

Hey, thank you for your answer, but I don't know what is and how to reset the CMOS. I know it is close to battery.

Refer to your MB's Owner's Manual for Jumper locations, you can also remove the battery (the watch-style battery on the board...can't miss it).

[olikomerc]

OK, Im reading the manual, and does the BIOS will return to previous version 0704 when Im going to reset CMOS, because now I have the newer 1005.
I think i can do that with the battery and maybe that about the CLRTC.

[Kursah]

No it keeps the version installed, just clears everything to defaults...should be done after every BIOS update...and I believe is recommended by most mfg's....even if not, I do it anyways to negate issues from not doing so.

[olikomerc]

But I checked in BIOS and everything is set to defaults, and I pressed F5 for any case.
I'll try to reset CMOS anyway.

[Kursah]

Resetting CMOS can reset things you cannot even control or see, which could be of great help...and like said before, it's always a good idea to clear the CMOS after updating your BIOS...don't trust the auto-clear function if it has it, it's just best to manually clear it.

Definately keep us posted!