I am trying to install a new fan, but I cant seem to get my old fan off. There are no screws, but some kind of clip. Here is a picture I hosted on my server if it helps:

http://stlhood.com/nonsiterelated1/bmow/cpu_fan.jpg

Thanks in advance

-adnan

Clean the dust off that thing!

I can't see the clip from that picture. How about a few shots from the side?

You are in serious need of a intake filter on your case.

AMD Athlon 64 X2 4200+
2GB Dual Channel DDR 3200
Nvidia 6800GT
SATA II 250gig 7200rpm 8mb cache
Gigabyte Nforce 4 SLI

The fan itself is a snapin. You can see the fingers in the mounting hole. With a proper tool or extreme care you can take the fan off without removing the heatsink.

You are going to need a leaf blower to clean your case.

Have you checked your manual because that picture doesn't tell us much.

There is only one satisfying way to boot a computer.

I cant really take any more pictures, because there is no room to fit my camera..

I don't have a manual for the computer either, but it is a Compaq Presario 5000 series (5330US) Pentium 4.

And what do you guys mean by intake/exhaust fans?

-adnan

not clear if you are trying to replace just the fan of the heatsink and fan in one. The first reply assumes you are trying to get heatsink off.
I can see the fan is held on by plastic studs, the fan is pushed on over them and then the top of the stud 'springs' outwards.
The chances of getting it off without breaking the fan / studs are slim.
You need to try to get some very thin nosed pliers in to squeeze the top of the stud whilst prising the fan up with a screwdriver / lever to pull it up off the stud. The fact that there are 4 makes it difficult.you need to do one corner at a time.
The chances of damage are high

With care the fan is removeable. It would be harder if the heat sink is removed. Leaving it attached would be a third hand to hold the assembly while you work. I think jewelers screwdriver, a small knife edge and maybe a few toothpicks would do. A needle nose pliers that can fit the depression would work. I would use small pieces of tubing to hold the fingers in.

For those with fat fingers, replacing the fan and heatsink is a better choice. You have to remove the clip. Usually you depress te end of the clip slightly so you can release the end. Don't forget to install the thermal paste or pad when you reattach.

no i just need to remove and replace the fan.

any old fan can work right? or do i need a specific kind.. its a pentium 4

-adnan

See those little clips in the corners? Just squeeze them with some small needle nosed pliers.

WILL POST FOR FOOD.