AGP Problem

I have a K7S5a ver 3. Has been running with an MSI G4MX440-VT8X video card. System was running well except when I would toggle the video card over to
TV out" it would restart the DVD that was playing. It would also lock up my Leadtek TV2000 application if it was running. After searching the net I came across the unofficial K7S5A guide. Reading it, I came across info about the SIS AGP port driver. In device manager it was not present, however Standard PCI to PCI bridge was. In the guide it said that this would be present if no SIS AGP port was loaded. I followed the guide downloaded the lates SIS driver. I clicked on the Standard PCCI to PCI bridge in device manger and selected up date driver which I used the latest SIS driver(1.17e, the guide called for 1.15 but I couldn't find it). After the reboot, my video was not refreshing well and the video would flash on and off. I restarted in safe mode. I updated the driver on the MSI card to nVidia's 56.72 driver. Still no good. Frustrated, I reformatted the drive and started over, reloading Win2K. On the reload of Win2K, I loaded SIS 1.17e AGP port driver. Also Loaded nVidia's 56.72 driver, However I still can't get the system to function without running in safe mode. Looking for some help. I tried a Gforce2Ti card and same problem.
thanks

Welcome to WinDrivers, royg!

I'm running a K7S5A both at home and at work; a few things come to mind:

1) Install the IDE drivers as well as the AGP drivers from the SiS site (SiS735 chipset).

2) Make sure "Assign IRQ to VGA" is enabled in BIOS.

3) You may have to disable ACPI to keep the video card from sharing an IRQ with another card and causing lock-ups.

Also, is it possible to toggle over to TV-out before you run the DVD player and/or the leadtek application? Toggling while these applications are running could be part of the problem too.

Post back and let us know what's happening.

I have wiped the drive clean again now, twice. I have loaded the latest SIS drivers and tried different releases of the nVidia drivers. I started with the original drivers that I was using before eveything went bad just to try to get a baseline.

You mention-Make sure "Assign IRQ to VGA" is enabled in BIOS. In my Bios I have "Allocate IRQ to PCI VGA" which is enabled and I have the "Primary Graphics adapter" set to AGP.

I am at a point where I think there is a motherboard issue.

I even tried an ATI card(9200) after re-formatting the drive. It exhibits similar symptoms.

I can run an old ATI 8 Mb AGP card without the problem.

I have monitored the power supply voltages and they are fine.

The original setup with the G4MX440 Video card worked fine exept for the freeze during togggling to TV out and the fact that the G4 card indicated that I was not running at AGP4X. That's when I intially updated to the SIS 1.17 AGP port driver. Now I cannot even use either the Gforce 2 Ti card or the G4.

All that and the old ATI has no issues at all? Curious indeed. Have you tried to flash the bios? What is the AGP but rated at on this mb? 2x or 4x or what?

AGP on the MB is rated at 4X. I have not tried to re-flash the Bios.