Nvidia 9800 GTX+ crashes on Call Of Duty 4 and WAW

Hey my little brother is having a ever since he recently bought he's 9800 GTX +. He;s specs are as follows:

Processor:
AMD Athlon(tm) 64 X2 Dual Core Processor 4200+, MMX, 3DNow (2 CPUs), ~2.2GHz
Motherboard: Asus M2V
Memory:
2 GB RAM
Hard Drive:
250 GB
Video Card:
NVIDIA GeForce 9800 GTX+
Power Supply: Shaw 550 watt
Operating System:
Windows XP Home Edition (5.1, Build 2600) Service Pack 2

What happens is that after a while of playing the game freezes, strange boxes start appearing and images go fuzzy, no error message comes up and he has to end the process from task manager.It only seems to happen on call of duty 4 and call of duty: world at war.When he installs the latest nvidia driver he's screen appears black on reebot untill he somehow manages to revert into the windows xp last good known configuration or safe mode.He can play call of duty 4 and waw on safe mode without problems.Who ever can help me solve he's problem will be thanked kindly!

Yep correct

It is a Gigabyte 9800 GTX+ wich comes with a zalman cooler. He doesnt like the idea of formatting/reinstalling windows though. I once repair installed win xp and it had errors copying some system filesi even tried with a diffrent win xp cd.But it looks like a software problem more than a hardware one. He is now also having trouble installing any nvidia driver, it's saying no compatible hardware found even though the card is running up and good physically. So yeh well just have to wait and find a solution.

He cant because the nvidia driver itself is having problems as i mentioned above

Try this and see if it helps.
Get a copy of driver sweeper and delte the Nvidia drivers
Majorgeeks.com should have it.

Sometime Nvidia drivers have a little trouble unless they get deleted completely.
Then try to install the drivers and see if it is any better.

Also go here for the drivers
http://www.nvidia.com/Download/index.aspx

Let us know if the driver sweep fixes things. If not, then maybe something's really wrong with your friend's hardware. You could also try checking for malware or other bad software stuff.

I have a similar problem - COD and GTA4 both crash the system randomly after a few minutes, requiring a restart. Looks the GFX card is hanging. Here is my setup:

MB: Gigabyte S775 Intel P35 ATX DDR2 Audio
Mem: 4X1GBKIT 240PIN PC2-8500 DDR2 (OCZ 8500 SLI)
GFX: BFG GF 9800GTX+ OC 512MB PCIE DVI
CPU: Intel E6550 S775 2.33ghz4mb
Disk: Caviar SE 160GB S300 8mb
Sound: SoundBlaster Audigy SE 7.1 OEM
PSU: DABS 650W PSU Black 12cm SATA PFC (branded Atrix)
OS: XP SP3

I have the latest drivers for all components, including recent (march) nVidia drivers for the BFG.
No overclocking.

My system worked perfectly until I upgraded the graphics and memory recently and added the Creative SB Audigy card.

My memory went from 2Gb OCZ 6400 to 4Gb OCZ 8500 SLI, and in desperation I tried slowing it down in the BIOS to 6400, which has fixed the crashes in both games. This might help you to diagnose if you have a similar problem.

However I'm still trying to work out what has gone wrong. Does anybody think a BIOS update help? This problem seems a fundamental hardware issue, I'm thinking about taking the GFX, Mem and Audio out and putting it back together again with a power up after each component to see if it refreshes a timing setting somewhere. Is this likely to help?

So anyone suggest something, if you bought in the pcworld you can give it back, or order techguys which will help you.

Hi , unfortuned users of 9800gtx+ , can I join in the club ?

I have this vga with my new system and I suffer several crashes while playing COD 4.
Since a week ago I been trying to figured out if my psu is too small or I receive a defective vga.
The crashes was very heavys sometimes ( I cant reboot only turning off the system from the back switch of the psu).
Now I found this tread and Im very disapointed , becose I buy this vga just to play COD4 with better graphics.

Anyone could find a solution to this issue ?
Which model of Nvidia I can trust to buy , of the 200 series ?

I read that the 295 works fine , but I cant reach that price , maybe someone try cod 4 in the 250 or the others models

Thanks in advance

PD:Sorry for my english

I try updating the BIOS of my motherboard and some issues has solve , but still have the shut-off video problem after an hour or less of play.

Finally I change my VGA (9800gtx+) for an 250GTS and no more crashes , flawless performance .

GUYS the solution is here just disable the physX from the Drivers properties and the game wont hang again

186.18 or earlier