Unstable System - Please help!

[sendersson]

I recently builded a system of gaming character, but the problem is that its shutting down (Freezing with sound repeating, need to reboot) just after 5 min of gaming (heavier games like f.e.a.r. 2, Trine, Need for Speed, Devil May Cry 4).

I first thought that it was the ram spooking, but after trying with just one ram at the time with the same result, i gave up that.

My second concern is that it might be the PSU being too wear for my system, so I downloaded easytune5 to monitor my +12V during gaming (got 34A on +12V, 2x 17A) went down to 11.520/11.600, is that the problem?

Temps on the Graphic Card was ~60C on load and CPU at 55C

I just want to know what to buy to get the gaming computer I brought.

Spec.

PSU: Earthwatt 500W. (+3.3 - 20A, +5V - 20A, +12Va - 17A, +12Vb - 17A)
CPU: AMD Phenom2 X4 920 2.8Ghz
RAM: Corsair 4gb (KIT) DDR2 1066MHz/CL5/XMS2-8500 Dominator
MB: Gigabyte GA-MA790X-UD4 ATX, LK, GBLAN, DDR2, Socket AM2+
GC: XFX HD4850 XXX Edition 512MB GDDR3, (650Mhz)

Thanks in advance.
William

 

[Outlander_04]

in BIOS check the ram voltages and timings .

but it sounds more like a problem with drivers than hardware .

What OS , and is it a clean install on a new hard drive?

 

[sendersson]

Timings are 5-5-5-15 at 2.1V

I use the latest catalys drivers and I got win xp sp3.

 

[Outlander_04]

and your sound driver?

It might be worth reinstalling that and gfx from scratch .

 

[daship]

Anytihng OCed if so bring clocks on CPU/GPU to normal and see.