Wow, been a LONG time since I've been on this forum!

Anyways, I'm finally upgrading my socket 754 platform because I want a dual core system. I bought an AM2+ mobo with a AM2 cpu and some new memory. I forgot to buy a new CPU fan as I bought an OEM Cpu with no fan. Will the fan on my socket 754 CPU fit an AM2 CPU???

It should if it includes the appropriate clip for the heatsink retainer, I see alot of heatsinks for amd that also list fitting 939/940/754, just make sure the mfg's discription states that it will fit an AM2 socket, and that it is rated for your processor speed/cooling requirements.

Well it's the stock AMD hsf that came with my socket 754 AMD cpu...it was a boxed set. I'll check AMD's site and see if they have ratings on their HSFs.

What's the speed rating for your 754 CPU and the am2 that you want to use it on?

The socket 754 CPU is a Sempron 3000+ I think...it's the fastest Sempron made for the socket 754 platform. And the AM2 CPU I bought is a Athlon 64x2 3800+.

According to the specs of a 64x2 3800+ AM2, you need a hsf that can handle 65W without going over 55c to 72c max, the sempron 3000+ 754 hsf requirement is 69c max at 62W. It looks like the AM2 socket only has 2 outside tabs for the heatsink fan; compared to 6 tabs on the 754 socket? The 754 heatsink should fit the AM2 socket, using the center tab's but the heatsink spring retainer might overload the tabs on the socket since it's only using 2 rather than 6. I have a spare a64 socket bracket with backing plate that has 6 tabs, along with an all aluminum thinfin a64/opteron fx rated heatsink/fan, was using it on an a64 3400+, it's dynatron part number A21, if you want it let me know, I'll send it for the price of shipping, the heatsink needs lapped because it got scratched up.. Any whoo your's should work fine if you are not overclocking, just keep a close eye on the temps. You'll see the lowest max load temps, once the heatsink compound settles in, after a few heat cycles. If temps are below 50c at max load, it'll work.

Well I popped it on for now to get up and running and at it appears to be working okay...I'm not overclocking right now at least. I'll probably just go and buy a decent one since I'm probably going to use my old setup for another PC and will need an HSF for that anyways. Thanks for the offer on yours tho!

What's your max load temp?

Not sure exactly...while at idle doing nothing I checked in the BIOS and the temp was 100* even. After being on a few hours and playing some UT3, I restarted and checked in the BIOS and it was fluctuating between 107*-109* which doesn't sound very hot at all from what I remember of my Socket A days. I haven't loaded a program to monitor temps in Windows. What's a good program for that these days?

That's around 41-42c, pretty good!

I've been using motherboard monitor 5 to monitor my CPU/chassis temps.