So heres my problem, One of my computers I built a few years ago continually overheats. The alarm sounds every few minutes under minimal load, my parents use it to surf the internet and play solitaire. I took a look at the fans and heatsinks and cleaned out the dust. I notices that the bracket that holds the fan and heatsink to the processor has a broken tab. Now I am shopping for a new fan and bracket. I have a 1.8ghz pentium 4 478pin Northwood processor and all the replacement fans I have found use the stock bracket. Can anyone recommend a fan that uses an aftermarket bracket or comes with a replacement. My budget is about $25. Thanks in advance.