Why does my FPS go down all of a sudden to ~25? and up again

[riahc3]

Hey

Im on a
E6400
2GB
X1600 Pro
Vista 32bit

Quake 3 Arena shouldnt drop to ~25 FPS for a few seconds then back up and then again drop to ~25. I remember times where on this system with this same exact config, I would get high FPS nonstop so this is a issue that has happened all of a sudden.

It even happens on test_bigbox. How do I fix it?

[DTS]

Don't have any other programs running in the background (except your antivirus and firewall).

[axbaby]

Is this a quake3 specific issue?
any problems with other games or applications?

[^misantropia^]

Don't have any other programs running in the background (except your antivirus and firewall).

A virus scanner can cause this behaviour as well.

[DTS]

A virus scanner can cause this behaviour as well.

Well get one that doesn't

[+JuggerNaut+]

or just disable it, but leave up your firewall to test.

[[xeno]Julios]

might be power supply issue.

also, does it happen at precise regular intervals?

[riahc3]

I dont run any other programs in the background
This only happens in Quake 3 Arena. In no other game does this happen.
I dont run a firewall but I run NOD32's antivirus but this has NEVER happened. It appeared one day.
At precise intervals no. It can be great 1 minute, 30 secs of skipping, again great for 10 mins, then 3 mins skipping, etc. I doubt it is a PSU issue as my PSU is rock solid.

[axbaby]

possible causes
heat .. cpu is slowing own

drivers
update chipset and video card drivers

Background app or unwanted programs running. download this program and scan your computer, remove un-wanted startup items and more
Link http://www.iobit.com/

We assume your using quake3 version 1.32 latest

The only time i ever had this issue was with a version of my motherboard drivers
that were utter shite. Went back to my old drivers and all was at peace in my world.

[riahc3]

Head and CPU is slowing down? Like I said, this doesnt happen in other games which require alot more power and are also FPS.

My drivers are updated

Again no background applications are running

Yup, Im on Quake 3 1.32

I havent changed anything; Like I said just started to happen one day.

[axbaby]

run quake3 with a bare bones quake3 installation.
no mods , or custom maps ..nothing except
the quake3 original files and PR 1.32.

[riahc3]

run quake3 with a bare bones quake3 installation.
no mods , or custom maps ..nothing except
the quake3 original files and PR 1.32.

This happens in a regular nonmodded DM server with about 4 players. Nothing custom everything original.