EDIT: We decided not to pursue further diagnosis, because we wouldn’t know what the hell we’re doing anyway, and decided to start the RMA process instead. It might not even be the reason why the PC won’t turn on, but I’m not comfortable with putting that CPU back into his PC again. Once we get a replacement, we’ll see what happens. If it’s still busted, we’ll just take it to a local shop. Thank you everyone for your for your suggestions and insight, they are very much appreciated.
My friend called me to take a look at his PC that wouldn’t turn on. Upon inspecting his CPU, I noticed a silver bump at the bottom. I’ve never seen this. Can anyone tell me what it is?
Looks like solder. Soldering irons are pretty cheap. You could try getting a cheap one and melting it off; but if you've never soldered before I'd recommend watching some videos on how to handle it so you don't just make things worse.
Yeah, you're going to ruin it and void your warranty if you do that.
Just add flux, hold it upside-down and heat it up. Easy peasy. Can't ruin it further anyway.
Desoldering braid