AGP driver (agp440.sys) problem

O

orbach

Guest
Forgive me if this is out of place here but I can't find this problem anywhere.

I was running with AGP driver (agp440.sys) installed and everything was fine (AGP speed 8x fastwrites Off) except Half Life 2 would not run. One suggestion I found in the forums was to drop the AGP speed to 4x, which I did (using the ATI control panel, SmartGart) and HL2 started to run fine. I tried to set the BIOS AGP speed to 4x from 8X (I should have left it alone) and the display became corrupted the moment I booted into Windows. If I set the speed back to 8X it booted fine. I booted in Safe mode, uninstalled the ATI driver and installed the latest 5.3 Catalyst driver and still had the same problem. I finally decided to remove the AGP device using Device Manager and reinstalled the Catalyst 5.3 driver and everything worked fine. HL2 runs well except for some unrelated audio problems.

I was wondering how the Catalyst driver could work at all since I have an AGP video card (Radeon 9800 Pro 128MB) and had removed the AGP driver (agp440.sys) and realized the driver is running in PCI mode, ie AGP reads and writes are Off, which I understand has lower performance. So I decided to reinstall the AGP driver, set the Bios AGP speed to 8x and lower it to 4x with SmartGart, and found similar display corruption on reboot.

Decided to start from scratch by removing the Catalyst driver, rebooting to verify it was gone, and reinstalling the AGP driver (the Intel INF utility, I have the 865PE chipset on an Abit IS7-E mobo). To my surprise, the moment the Intel INF installer loads the AGP driver the screen becomes corrupted. I tried clearing the CMOS, setting the BIOS AGP speed to 4x, reboot, then back to 8x, reboot, and nothing seems to work. So I am currently running without the AGP driver in PCI mode. Remember that before I started I had the AGP driver and everything was as it should be. I must have installed the AGP driver on a fresh Windows setup and now that I removed it cannot reinstall it without causing display problems.

How can I fix this problem and enable the AGP slot? My system:

Abit IS7-E mobo 865PE chipset
Radeon 9800 Pro 128MB
512MB Corsair DDR PC3200
Sony DRU700A DVD/RW
Lite-On LTR-52327S CD/RW
Antec 350W PSU (I know it's low, but it used to work!)

Thanks for your help
 
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