Q: My friend has a p4 3ghz HT socket 775 cpu . 1 pins broken out of the CPU so its almost unusable. what can i do? How to solder the pin-broken CPU?


A: CPU is a very expansive component of a computer, but because of improper transportation and maintenance, and some processes of over-frequency by DIYers, CPU pins might be snapped by mistakes. Though internal circuit is fine, once a pin breaks, the CPU cannot use any more, so it is judged as “Death penalty”? Not that serious. By practice, I have two methods for you:

A, get ready a 20W electric iron, grind the head cuspate to weld, and you should notice that the iron should have a well earth. If you don’t have one, you can pull up the plug of electric iron, take advantage of the left-heat to weld, or CPU might be damaged by faradism.

Pin welding process

1.Scratch and clear the surface of broken-pin, tin quickly on it with soldering tin and colophony, make sure the soldering tin attaches equably on the broken surface.

2.Scratch the broken feet completely (if they are lost, pin or electric components’ can replace), tin with the same way.

3.Fix the CPU on the table with bifacial glue, nip the broken-pin with pliers on your left hand, connect the broken-pin part to the soldering tin, with your right hand, and weld them together with electric iron. More colophony will make the welding points smaller and more slippery.

4.Insert the CPU to the slot carefully, if it can’t, nap the welding points cautiously with a cutter blade. After plugging it well, start the machine to test.