[Morglor9]

My computer consists of a WinFast NF4UK88A motherboard, which has an AMD 3000+ sitting atop it and a Leadtek 6600GT video card. Lately I have noticed that one of the fans in the bottom of my computer has started to make a strange noise. I'm 95% certain it's the chipset fan, and I was wondering how difficult it was to replace this fan, what kind of fan to buy, and what else i might need (aside from thermal paste).

[alex]

Sounds like the chipset fan.

Northbridge or Southbridge?

Regardless, each has a standardised mounting system size (pushpins connection usually).

Why not go passive? Zalman do some terrific chipset coolers.

[Morglor9]

It is the southbridge, which is why it must be active cooling, because of the length of PCI-e cards, there isn't room for a heatsink which would be sufficient to cool it. I've read that this is a common problem for NF4 motherboards.

Also, when I looked, it appeared that the fan was attached with screws, but those may have been the pushpins you mentioned.