...you coluld certainly try removing the old fan, removing the entire heatsink, then scrape off the thermal compount from the CPU, replace it with a thin coating of new compound, then replace the heatsink and new fan.
Hope this helps.
I picked up an incomplete computer in a garage sale. It has:
a Gigabyte GA-7N400-Pro2 mobo with an AMD processor (don't know which without disassembling it)
1 GB of Geil DDR400 PC3200 dual channel RAM
mounted in a nice Antec case with a 350W Antec PSU
When it is turned on, the fans begin to turn and I think I hear one beep, but it kind of morphs into a whine which sounds like it is coming from the CPU cooler fan. After 4 or 5 seconds, it shuts down again.
If I remove the RAM, it does the same thing but just takes about twice as long (8 seconds) before it shuts down again.
The longer startup maybe indicates a RAM problem as well as the shutdown issue.
A second issue is that I was told that the integrated video never worked and a video card would be needed. The AGP slot is an 8X. I have a spare GeForce MX4000 D64M card, but I'm unsure if it is compatible. The green AGP slot has a single divider approx 1/3 of the way from the back of the slot (the end with the clip to hold the end of the card in place, i.e., not the end with the plate holding the connector for the monitor cable), while the card has two 'cuts' for such dividers, one approx 1/3 of the way along and the other apx 2/3 of the way. The card can be inserted into the slot as the first cut fits the divider in the slot, but I am a bit concerned about it having two cuts. Is it OK to use it?