Choppy Oblivion...help!!!

I dont know. That machine should run it well. May be drivers may be a patch you need to install but you should run it better than low resolutions.

im not exactly sure but Maybe its because you are running an AGP system and there is not enough bandwidth coming out of your card to keep churning out the textures smoothly but thats the only thing i can think of try turning your agp appature size up expirement withthe bios or wait for a patch and if all else fails set the texture size down to medium and it looks great still but just at medium or try turning off HDR and try going to bloom just tweak the settings and find a sweet spot in between graphics and performance

Your video card should be adeqaute and you should have frame rates of about 30 or better in most situations.

It may be your system is not set up right or as mentioned, could be your sound card.

Should be able to eliminate the sound card isue by turning off the sound and see if the chop goes away.

If that is not the issue, try going to the games forum and download the Oblivion Tweak guides. There is a lot of good information in the tweak guide and it is very effective. I am running a homebuilt AMD XP 3000 with an ASUS A7N delux, 2 meg of ram and an ATI 1600 pro. Frame rates not the best, 20 to 35 (usually high end except in darker environments which seems backwards to me), but no chop. I also run with Anti-aliasing at 4X turned on (because I can) in conjuction with HDR.

Congratulations on the world's best ever underclock
What have you got powering that? A hamster in a wheel?

In your case, I think the sound chip was probably more powerful than the CPU.

Come to think of it, my kitchen scales are more powerful than that CPU.

In the immortal words of Weird Al: "What kind of chip you got in there, a Dorito?"

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I think that typo might just have got GarryPark a place on the next "Best of the Forums".