• Competitor rules

    Please remember that any mention of competitors, hinting at competitors or offering to provide details of competitors will result in an account suspension. The full rules can be found under the 'Terms and Rules' link in the bottom right corner of your screen. Just don't mention competitors in any way, shape or form and you'll be OK.

2nd Graphics Card Help

Associate
Joined
19 Jun 2009
Posts
1,821
Location
Central Scotland
Hi OcUK'ers - any assistance much appreciated.

I acquired a 2nd graphics card for my desktop to that I could have a 3rd monitor up and running. I was also going to plug monitors 2 and 3 into the 2nd gfx card, leaving monitor 1 in my primary graphics card to try and maximise FPS is games. (please tell me if it doesn't work like that! Also, I'm not really an IT biff, but far from a pro too. Apologies if there's a blatantly obvious noobish thing I've forgotton to do.)

My original gfx card is an Asus ATI X1950 Pro 256 mb
The 2nd card is Sapphire (I think) ATI HD4650 512mb - I'm not at home just now so can't say for sure. Also, this card has no power connection to connect it to the PSU.
(I found I got better FPS from my X1950, so I'd like to make that the primary gfx card.)

Regardless of which card is in the secondary (lower) PCI-E slot, windows device manager recognises the card name, but with a yellow warning triangle. I go into properties and get Error Code 38:

"Windows cannot load the device driver for this hardware because a previous instance of the device driver is still in memory."

I have followed the resolution suggestions on the MS support website. I have uninstalled the drivers for both cards, fixed any registry errors with ccleaner and reinstalled the drivers. Still to no avail.

If I only have one driver installed, windows automatically installs something, recognises a VGA card, reboots, then'm back at square one.

ATI CCC doesn't see the 2nd gfx card.

Is there an easy workaround? Could it be a mixture of DX9 and DX10 cards?
Any BIOS settings I could change?

Vista Home Premium 32, Asus P5W DH Deluxe mobo, 2GB Corsair XMS2 DDR2 PC6400 RAM, E6600 @ 2.7 GHz.

I've not long done a clean install of Vista, and I'd hate to have to do it all again - the Mrs would go spare, as every time I do wipe and start again, the Mrs loses something - even though she told me she had everything backed up, and somehow it's all my fault

Thanks again in advance for your help.
 
I'm pretty sure it's Vista's fault.

I think the issue is that both cards want to use different drivers.

I'm guessing here, but I suspect you may need to alter the INF file of the current 9.8 drivers to include the X1950, otherwise Vista doesn't let you run two separate display drivers.

Also, having your 1950 driving 2 monitors doesn't effect performance, I run 2 monitors and get the same performance in games regardless of if I've got one or both connected.
 
Last edited:
Back
Top Bottom