Good Computer getting bad FPS with Oblivion

[SgtInsane]

My specs are
Windows 32bit
Nvidia 680i LT MotherBoard
8800gt 512
4GB of DDR 800 RAM
Intel Quad Core Processor q6600 2.4gz

My problems started when i had defective RAM that was causing all sorts of problems such as extreme crashing, It caused a corruption error and i had to take the RAM out. I replaced the RAM with 4gbs of Kingston RAM, I then went to play oblivion, before i replaced the RAM I was getting 60fps and 40 and at a minimum. But now im getting huge fps drops when in combat or when there are a alot of NPCs. Im now at the point where i mite get vista and get ride of XP, so i can use all my RAM. Iv defraged my harddrive, done a memmory dump, havent ran memtest yet cause i cant get to work. Please if you guys know and solutions or can help i would be most grateful.

[Cannibalsnail]

It could be a software issue. Have you tried re-installing Oblivion, downloading the newest patch etc. Also a virus or spyware could be the problem ; is it with oblivion only? If the problem persists it might be worth reinstalling windows or upgrading to 64bit.

[SgtInsane]

Iv tryed all of those things still bad fps im getting vista tommorow anyways, but more help whould be good.

[Aus_Karlos]

If its Vista 32-bit then only 3.2GB is used/available. Only 64-bit operating systems can use +4GB to its full potential.

The problem your having could be else where, you may of only fixed one of many problems. What PSU are you using in your system?

[pharoah]

oblivion on wide open settings at a high resolution.can exceed your video cards 512ram to.

[SgtInsane]

I have a OCZ 600W Stealth Stream Power Supply, it seems strange that oblivion is running this way, i used to get good fps with oblivion after i took the defective RAM out.

[SgtInsane]

It seems fallout 3 is now subject to the problems im having with oblivion if you could please help me in any way that would be cool.

[RockmasteR]

if there are two RAM sticks
remove one and keep the other, and then try the game

[SgtInsane]

I already did that didnt make a difference.

[SgtInsane]

My Problem

Computer specs
Intel Quad Core 2.4gz
8800gt 512
4gb of RAM of Kingston
Nvidia 680i SLI LT Mother Board

Hello Im having a problem i while ago i switch my RAM because it caused a bunch of system erros ,so i went and started playing oblivion. What happened next has baffled me more then any else my Oblivion was getting massive lag spikes in fps and worse fps in general. So before I switch my RAM I got great fps 60fps always in caves and at a, minimum outside 40fps, it was so wierd i tryed defraging my hard drive, cleaning my registry, rolling back and updating my G card. The bad RAM i had talked about corrupted a windows file which i repaired, could that be the cause, i talked with technical assistant and he said the RAM i have is compatible so whats going on then, also fallout 3 has the same problem.
I play on Ultra High settings
no AA or AF and no V sync my resolution is 1024x768
I REALLY REALLY NEED HELP!!!!!!
ANY SUGGESTIONS WOULD BE AWSOME!!!!!

[pharoah]

after changing the bad ram did you reset the motherboard bios?

[SgtInsane]

How do i do that, when i started my comp up it said it was updated.

[Mcninjaguy]

when you're computer boots up press "del" a bunch to get into the bios

the go and restore to defaults should be in the last tab

[SgtInsane]

k would it happen to be the load defaults option in bios.

[Mcninjaguy]

yep you got it

make sure to save changes