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New PC freezing - Nvidia 9800gx2 the problem?

Last response: in Video Games
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August 31, 2008 6:23:01 PM

Hi,

I have a newly built PC with the following specs:
E8400 Core2Duo 3 GHZ
Asus P5E3 motherboard
4 x 1 GB sticks of CSX 1333 MHz RAM
***Inno3D NVIDIA 9800GX2 video card
2 Seagate HDDs in Raid 0 (on-board Intel ICH9R controller)

I am running a clean install of Vista x64, although the problem occurred on both WinXP and Vista x86 as well.

The problem is that on a cold PC I can play some 1-2 hours of Crysis, COD4 etc and then it starts freezing - no response from controls and the last audio sample keeps making an annoying repeating noise. If I leave my PC on during the day and try playing on a warm PC in the evening, the problem tends to occur immediately after some 0-5 minutes of play. CPU is running at no more than 60 degrees celsius and the graphics card, which I suspect to be the problem, can get up to 95 degrees. Anyone know how to tell for sure?
September 1, 2008 9:07:46 AM

i had problems like that and i fixed it by setting my gx2 fan to 100% all the time because it only went up to 45% even when gaming when i first bought it.
September 1, 2008 9:25:07 AM

Agreed, a heat problem. You could try shoving in some extra case fans (if you don't have enough - the 12mm ones are good) or maybe look at an aftermarket cooler for your 9800gx2 (not sure if there are any for that though).

A nice big case will also help with cooling. Oh and make sure you have a decent psu too as this will help with the stability of your system

Here is a very good app for monitoring your temps (not just gfx):

http://www.cpuid.com/hwmonitor.php
Related resources
September 1, 2008 9:41:30 AM

How do set the GX2 fan speed? The Ntune utility does not allow me to do that (controls for the fan are disabled in grey).
September 1, 2008 12:37:44 PM

tried rivatuner?
September 1, 2008 2:01:30 PM

Ok, seems like the problem is with the fan on the 9800gx2. It seems to be set at 45% of max, hence the temp goes to over 90 degrees celsius. When set to 75%, the temp goes to some 75 deg, and when set to 100% the temp does not exceed 65.
Temperature at 50 degrees with 100% fan with no load (idle).

I used the EVGA Precision utility, which looks more simple than Rivatuner.

Thank you everyone!
September 2, 2008 1:48:59 PM

The GX2 does have a really conservative fan setting by default. Cranking up the fan will legitimatly take off close to 10-15 degrees at idle...
September 11, 2008 8:02:14 PM

Guess what?
Turned out to be a faulty motherboard.
!