Games performance degrading over time

tingi

n00b
Joined
Nov 22, 2007
Messages
3
My system:

Pentium D 820 @ 2.8Ghz
2GB DDR2 ram
Asus P5LD2 Deluxe motherboard
nVidia 7800 GTX 256mb
3 SATA2 HDD
500Watt PSU

The problem:

I load up a game and I start playing. The framerate is pretty smooth at start. It starts falling in a few seconds until the game becomes a slideshow and is unplayable. Two games I've been trying to play lately are Bioshock and Pro Evo Soccer 2008. My system is well above the minimum system requirements for both games.

To verify that something was wrong I loaded up Doom 3 and did five timedemos in a row. I used 1280x1024 on ultra quality. On my first run I got an average of 58 FPS. Second run was 48.8 FPS, third 45.3 FPS, fourth 44.4 FPS and the last one 46.1 FPS.

I decided to try the same on a fresh installation of Windows XP. I reinstalled WinXP from scratch, updated w/e was needed, installed latest drivers etc. Still the same thing. I don't remember the numbers for the Doom 3 timedemos but it is still the same picture. Bioshock and PES2008 are smooth once they load and I start playing. In a matter of seconds they become a slideshow.

The only thing that I think of that might be wrong with my system is that my CPU runs hot. It goes up to 80° Celsius under heavy load. Does high CPU temp degrade performance?
 
yes high temps will do that

P4's throttling starts kicking in around 70C, with an 80C cpu temp it's no wonder your cpu's throttling has kicked in.
 
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