FPS Decrease

[JoeM076]

I recently bought a new computer with an Nvidia 8800GTX, and the first game I installed was F.E.A.R. I performed the Stress Test and my FPS was almost always over 100FPS. Now when I perform the Stress Test, my FPS is, at the most 50 FPS. When I was getting 100 FPS, I had all of the settings to maximum and I had 43 programs running in Windows Task Mananger. Now I have 33 programs running and I am getting half the performance. Also, at times the FPS gets very slow, down to sometimes 19 FPS and this never happend before. Does anyone know why this might be?

 

[beef_jerky4104]

Defragment your HDD. Run Virus and spyware scans.

What power supply do you have. A weak one thats dieng could lower performance.

 

[JoeM076]

I ran virus scans, I am 99.0% sure that I do not have a virus in my computer. I have uninstalled unecessary programs, cleaned my hard drives, defragmented my hard drives, I have taken away the majority of my Owner start up programs in the msconfig toolbox and error-checked my computer. I have a 700W FSP PSU and a 300W FSP Auxliary PSU.

System Specifications:

-Intel Core 2 Duo E6700
-Nvidia 8800GTX
-ASUS P5N32-SLI SE Deluxe Motherboard
-2GB's of Viking RAM
-1x 300GB WD C SATA HD
-1x 160GB WD R SATA HD

-I have 87% free space on my 160GB (main) drive, and 99% free space on my 300GB drive.
-Give or take a few, I have 31 processes running in the Task Manager.

-In F.E.A.R. with all settings on maximum, I get 15 FPS at the lowest and 59 FPS at the highest.
-I used to get over 100 FPS more than 50% of the time with all settings on maximum.