CS: Source crashing after GFX card change?

[Stonedofmoo]

Hi folks

I have a 3 year old PC thats done me stirling service and I decided to give it a new lease of life with one of those ATI X9150 pro AGP graphics cards.

The rest of the spec is as follows.

P4 3.2 @ 3.5, 4 x 512 OCZPC3700EB memory sticks at 218fsb 2.5:2:2:6 timings , Asus P4C800E motherboard, Tagen 480W PSU and a Creative Audigy Platinum Pro 2 card.

The old graphics card was a GF6800 Ultra and with this setup the computer worked perfectly, albeit a little slowly in Company of heroes

Now last night I changed to the ATI X1950Pro 512meg AGP card and everything works perfectly ... except CS: Source which comes up with this message no matter what I do

I have tried the following
*running at default stock speeds on CPU and memory
* changing just about every BIOS setting there is
*downgrading the Catalyst drivers to 6.11 from 6.12
*Uninstalling source and removing CS: Source files and reinstalling from fresh

none of this has had any impact and it still crashes in the same place. I've also run looping 3DMark benchmarks whilst running Prime 95 and had no problems and done a Memtest 86+ check and everything is running perfectly except CS: Source

Does anyone have any ideas now? I ran the Source crash analyser and the only thing it flagged up was that I ran style XP, so I exited that and terminated the service to no effect.

All suggestons really appreciated.

 

[Nelly]

I had a similar problem on my old skt 939 setup, using 2x 512 GB pc4000 Ballistix DDR Ram. The problem for me was not giving the ram enough volts.

Are you running the ram at its maximum voltage specification? That solved the problem for me.

 

[Stonedofmoo]

Yes I am, but bear in mind I ran at stock speeds and it made no difference then either

And theres the fact it was running fine with the 6800U. The only thing that has changed between CS:Source working and not is the change to the new graphics card

But every other game and benchmark I have tried has been fine.

 

[steve258]

Did you run driver cleaner pro to remove Nvidia driver completely before installing Catalyst??

 

[Stonedofmoo]

Yes, it removed 4 files that were leftover despite uninstalling with the Nvidia add/remove option.