HIS ATi 3870 switching off?

[shaggyd]

Hello, I got a HIS ATi 3870 last week and have a problem where it keeps shutting it self off (blank screen) after 1 - 5 mins of playing CoD4 or 10mins of World in Conflict.
Gears of War, UT3, Armed Assault & Medeival TW II run fine at max settings.
I have read on this forum and other forums that it is a heat problem, but when I check the RivaTuner log it never reaches above 60 degrees.
Also EventViewer reports Ati2dvag.dll keeps entering infinite loop when it happens.

Any other ideas?

My specs :
HIS ATi 3870 512MB GDDR4 PCI-E
AMD 42000x2 939pin
ASRock 939 Dual SATAII mptherboard
2 GB DDR400MHz RAM
500W PSU
1 x 300 MB SATAII, 1 x 150 MB SATA & 1 x 120MB IDE HD
Catalyst Control 4.3
XP SP3 RC2

Oh, and no overclocking involved as I need my PC to be stable for OU work as well!

 

[shaggyd]

Whoops my mistake!
Catalyst Control Drivers 8.4 not 4.3!!?!

 

[shaggyd]

Ok, I have removed all ATi & Nvidia drivers and run Driver Sweeper as mentioned. Installed complete driver package from HIS cdrom (Ver 3.8 I think - Nov2007?) and now it crashes 5 mins into a World In Conflict demo playback. I have tried it with various options (VPU Recover off/on & Catalyst AI off/on), but still crashing. Event viewer shows same Ati2dvag stuck infinity loop.
Any other ideas or shall I send the card back?

 

[shaggyd]

Ok, Cleared CMOS, reconfigured BIOS for my HD's, tried PCI-E frequency at 110, that failed WiC within 5 mins, cranked PCI frequency upto 115 and PCI Latency down to 32 - WiC demo lasts 10 mins with no slowdown then suddenly crashes. RivaTuner shows GPU reaching upto 60 degrees (when WiC playing) then dropping back down to around 40.
I have read many posts about changing fan speed, but I want to avoid this at the moment since I paid £140 for an ICEQ3 to run silent & efficiently.
Any more ideas? - I really like this card and it is a shame to return it because of 2 games ( Wic & CoD4)..

 

[shaggyd]

Good news & bad!! The card works fine under Vista64 when running World in Conflict with a 7 bot multiplay map, All graphics settings high under DX10 in spectate mode - no crashes nothing.
Bad news is that CoD4 is still crashing after 2-3 mins.
This means that :
(a) Card works ok (after 2 x 40min tests of WiC 7 bot multiplay).
(b) Either my XP is corrupt somewhere or
(c) DirectX9 on my pc in XP and Vista64 is dodgy - most unlikely as UT3, GoW and Arma run fine. or
(d) My card doesn't like Cod4 at all for whatever reason...
Any ideas anyone please?