Dell Dimension 8400 Fan Noise

[computer2slow]

Hope it works for you. If it doesn't remember who to blame. The internet. That places is always causing trouble.

[mczplwp]

I might be to late with my 3 cents worth but here goes!
Yes Dell motherboards are proprietary and the CPU heat sink base is one of their @#$@@ creations. Try going by a local computer shop and see if they have a dead 8400 their willing to part with the heat sink from. Bring along your current setup for comparison with something they have. I'm a junk hoarder in my shop and some things you hate to throw away i.e. Dell.
Or go to eBay

[bumhead77]

may sound stupid but have you cleaned it? take the case off and get all the dust out CAREFULLY i di and my pc was quicker (as didnt overheat) and was near silent as in as quiet as when new afterwards.

[jjones1994]

I understand you are trying to help, but this thread is dead.... You necro'd a post from February. I would hope he has his problem fixed by now....