Has anybody seen this before? I found a tiny stray bit of thermal grease on the underside, away from the contacts, nearer to the tiny resistors, but it appeared to be sovereign. Do you reckon I could clean this with %90 rubbing alcohol and a q-tip?
I only had %70 on me, so I didn't bother. It was working when I pulled it out, and it still appears to be working fine.
I'm posting this as a question, I apologize if it should be under discussions.
I do not recommend any cleaning solutions on this side (underside) of the CPU. The alcohol/cleaning fluid might find its way inside and create problems.
As for the discoloration, it does look unusual. If the CPU is functioning properly don't worry about the discoloration. It could be that during manufacturing there was some slight film of something at that area that prevented automated cleaning on the assembly line.
Careful cleaning with a dry 'Q Tip' will help. Make sure that you blow off the fibers that are left behind. Moist alcohol swabs will help too. Hold the CPU upside down (lands down) and use sparingly.
Looks unusual to me.
Is it possible that your old waterblock had a tiny leak that could have seeped down into the cpu?
I would not try to clean or touch the contacts assuming that the cpu operates properly when you reinstall it.
No, this is the first time I have used a water cooler on this system. The previous cooler was an A50, which is essentially Corsair's version of a Hyper 212. I have a feeling that if it had anything to do with water, it would have died by now.
You can see the same discoloration along the lower left edge; it's hard to tell, almost like an optical illusion. I say pop it in and see what happens, but I wouldn't touch that underbelly with your fingers, alcohol, qtip - anything.