Hmmmmm... I don't know how well those heatsinks work so i can't give my two cents on that one. Personally, i always go with a decent coolermaster heatsink, and I have also bought a Shim, which fits on top of the CPU and under the heatsink which prevents core crushing. You can get them on click here for about £6.
But if this has happened twice with your CPU there maybe another problem. perhaps the BIOS settings are not right, and its burning up your core.
make sure that the heatsink is COPPER BASED and sits in the correct position. Or try changing the FSB to 100.
Also depending upon ur load u may require a large PSW. I bought a 460w enermax and ALL my stability problems were solved. E.g i ran 3dmark2001 for 6 hrs on a loop and left a quake 3 server (hosted on my comp) with 20+ peeps on all the time running for a day and not on crash.
Email me for further info, u seem to be having the exact same problems that i had with my xp2400+. gg.
If the heatsink/fan was in a selaed box with the cpu then it is an AMD retail pack and carries a 3 year warranty. The heatsink/fan is approved by AMD and should not cause any probs. Is your mobo jumperless or do you have to change jumpers to adjust fsb, frequency, voltage etc. Have you thought that perhaps the mobo might be faulty?
Ive got a 450w PSU. My mobo has jumpers but Ive checked and checked again that they are all set up right.
I assumed that the mobo wasnt faulty because it DID work for about 7 hours when I first tried the system.
However, it HAS to be either the mobo or the cpu doesnt it? I mean you only have to have a mobo, cpu and ram for the BIOS screen to appear yeh?
I rang aria.co.uk today and they said to send the cpu back for testing, but Im NOT prepared to wait another two weeks plus for the result so Im taking the whole system down to PC World to get them to have a look because to be honest Ive lost all patience and the majority of my sanity with this PC building malarky!