Geforce 2 GTS- Problems w/ framerates

[Mezzanine]

Hi'

I've been having problems with the framerates when I run games like UT (or anything for that matter) on my GF2 GTS. It seems that whatever I try, the framerates drop TREMENDOUSLY when more polygons get on screen. Now I know it's normal for them to drop, but these framerate drops are abnormal. In Unreal Tournament, it can go from as high as 160+ FPS to below 28. Its really odd, here are my system specs:

-TBird 1.1ghz
-128mb Ram
-GeForce 2 GTS 32mb DDR
-DX8
-Win 98

I have tried all the following to attempt to fix this problem:

-I started w/ Windows ME, then went back to 98 and the problem persisted
-Reformatting my drive
-Using DX7 instead of 8
-Installing the VIA 4 in 1 drivers
-Installing almost ALL detonator drivers
-Checked to make sure my GF2 isn't conflicting w/ any other devices of sharing IRQs
-Turning off individual GF features (like FSAA, etc)

So, as you can tell, I've tried mostly everything. If anyone can help at all, it would be appreciated. Thanks in advance.

-Mezzanine

[Placid]

Try different settings for your agp apeture in the bios.

[Mezzanine]

I tried changing the AGP Apeture in my BIOS settings. Still no use. Any other suggestions? They would be greatly appreciated.

-Mezzanine

[Placid]

Maybe you can find something at one of these sites.

http://www.tweak3d.net/faq/faq.cgi

http://www.viahardware.com/faq/kt7/kt7faq.htm

[Mezzanine]

Well, unfortunately those sites had no help for me (well a little but not much). Any more suggestions would be greatly appreciated. Thanks.

-Mezzanine

[Riekk]

I wish I had that problem rather than my own. I've got a Leadtek Geforce2 GTS/Pro mated with an Athlon 1.2, and I get 60 frames per second in Quake ONE. About 30 FPS in halflife, and around 50-60 in UT. I've been trying everything, different bios and drivers for the motherboard, DX versions, vid board drivers, nothing will help.

[Mezzanine]

So anyone else have suggestions? I'm depserate here :(. Some games, like Black and White, are just too hard to play because of the high polygon counts (which I think is the problem with my slowdown). It should not be this slow, I know this for a fact. This is very odd, as my friend on a Pentium 3 w/ GeForce 2 GTS Pro gets smother fps with an 800 mhz machine.