From what I can find the Aladdin V chipset has issues with many video cards, not just Radeon 9800. It's probably not the best choice for a socket 7 system that you intend to use for serious gaming.

I have a stable system running on Aladdin 5 with a K6-2+ 600 MHz and Quadro2 Pro (Professional Version of Geforce2 Pro) with some more stuff as an Adaptec 2940UW, Voodoo2 SLI, some PCI network card and Terratec Base1 with WT64 and ActiveRadio.
I don't have the system running currently, but I think I set the following:
HKEY_LOCAL_MACHINE\Software\ALi\ALi AGP Driver

"AGPDataRate"="1"
"ForceSBADisable"="0"
"ForceAGPEnable"="1"
"FrameBufferSize"="C"
"FrameBufferDisable"="0"
"GATMode"="0"
"K6SetEWBEC"="2"
"UseUCForWC"="0"
"GTLBAlwaysFetch"="0"
"ResetAGPCommand"="0"
"MaxPCIRetryCounter"="0"
"InOrderQueue1"="0"
"PCIMode"="0"
"ForceAssertRequest"="0"
"DisablePCIReadPrefetch"="0"
"AGPDelayClock"=hex:10
"SDRAMDelayClock"=hex:10
"K6WriteAllocate"="2"
"PADTTLInput"="1"

I think I could even set GATMode=1 without problems.
If you want a nice graphical interface I recommend using the Ali AGP Utility.

if you would like to have more details, as used driver version I would have to setup the PC again to check.

Im gonna try it the rough way, using the registry entries.

BTW, I spotted your AGPDataRate set at a value 1 = meaning your AGP transfer rate is set to 1x only? Can I set it to 2 instead?

elianda wrote:

I have a stable system running on Aladdin 5 with a K6-2+ 600 MHz and Quadro2 Pro (Professional Version of Geforce2 Pro) with som […]
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I have a stable system running on Aladdin 5 with a K6-2+ 600 MHz and Quadro2 Pro (Professional Version of Geforce2 Pro) with some more stuff as an Adaptec 2940UW, Voodoo2 SLI, some PCI network card and Terratec Base1 with WT64 and ActiveRadio.
I don't have the system running currently, but I think I set the following:
HKEY_LOCAL_MACHINE\Software\ALi\ALi AGP Driver

"AGPDataRate"="1"
"ForceSBADisable"="0"
"ForceAGPEnable"="1"
"FrameBufferSize"="C"
"FrameBufferDisable"="0"
"GATMode"="0"
"K6SetEWBEC"="2"
"UseUCForWC"="0"
"GTLBAlwaysFetch"="0"
"ResetAGPCommand"="0"
"MaxPCIRetryCounter"="0"
"InOrderQueue1"="0"
"PCIMode"="0"
"ForceAssertRequest"="0"
"DisablePCIReadPrefetch"="0"
"AGPDelayClock"=hex:10
"SDRAMDelayClock"=hex:10
"K6WriteAllocate"="2"
"PADTTLInput"="1"

I think I could even set GATMode=1 without problems.
If you want a nice graphical interface I recommend using the Ali AGP Utility.

if you would like to have more details, as used driver version I would have to setup the PC again to check.

was your ali5 rig running win98 or 2000? i heard most of its agp issues have been solved in 98 although i havn't tried myself.
i had a lot trouble in 2000 and neither agp driver nor the AliAGP Utility does any good, i guess they have dropped support for m1541 chipset when win2000 was released. i managed to get some radeon 7200/7500 cards running, but never got nvidia cards running in agp mode without crashing.

Shodan486 wrote:

Im gonna try it the rough way, using the registry entries.

BTW, I spotted your AGPDataRate set at a value 1 = meaning your AGP transfer rate is set to 1x only? Can I set it to 2 instead?

You can try, but there will be no performance gain on SS7. Instead stability issues may come up.

was your ali5 rig running win98 or 2000?

It is running Win98SE. The NVidia driver brings its own hack for AGP on Irongate and ALi at some version. You have to have a certain installation order to have the drivers running You like. Maybe try AGP reboot, NVidia reboot, AGP+manual setting reboot, check with rivatuner/agp utility and 3dmark2001se benchmark.

elianda wrote:

You can try, but there will be no performance gain on SS7. Instead stability issues may come up. […]
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Shodan486 wrote:

Im gonna try it the rough way, using the registry entries.

BTW, I spotted your AGPDataRate set at a value 1 = meaning your AGP transfer rate is set to 1x only? Can I set it to 2 instead?

You can try, but there will be no performance gain on SS7. Instead stability issues may come up.

was your ali5 rig running win98 or 2000?

It is running Win98SE. The NVidia driver brings its own hack for AGP on Irongate and ALi at some version. You have to have a certain installation order to have the drivers running You like. Maybe try AGP reboot, NVidia reboot, AGP+manual setting reboot, check with rivatuner/agp utility and 3dmark2001se benchmark.

i have tried but to no avail, the aliagp util can't make any changes, i guess it actually works only in 98.

nv claimed that their drivers disable agp mode on purpose whenever an ali chipset is detected, to avoid lots of issues as they consider ali chipsets to have poor agp support. you can use registry to force agp mode on, but then it simply crashes very quickly.

i managed to get some radeon cards running in agp mode, but it seems only work with certain old versions of drivers. i wonder whether its also agp issue or that newer drivers would require a 686 cpu.