Residue on TR contact pads

New 1920x received with some unknown residue on a couple pads. I’ve tried 99% Isopropyl Alcohol and a Q-tip with a gentle rubbing motion to remove it. No luck, any other solvents I could try safely?

Residue 1

Residue 2

Does it not boot?

I haven’t tried booting it. Could loss of contact on 1 pad damage the mb?

I would be hard pressed to say no as i dont know what crazy shit could happen, but I highly doubt it.

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Thanks, I’m thinking it just wouldn’t boot and come back with code of some sort. I wonder if some of that Goof-off stuff would work? Or rubbing alcohol? I’m leery of trying much else but hopefully someone has ran into a similar situation and may have some advice?

You can try acetone, but don’t let it dwell on the PCB. I’m not sure it’s the best idea, however. I’d see what pin that is if possible, it may not be very important if it’s just one VCC or GND pin.

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Thanks for the suggestion Chris. Since the 1920x doesn’t use all 4 dies it maybe on an unused die as well? I’m going to call Amd’s cust.svc today and see what they recommend.

I can’t tell what quadrant that is based on the pic, but here is a page with the socket pinout:

http://www.hwbattle.com/bbs/board.php?bo_table=cpumbram&wr_id=169038&ckattempt=2

The first pic is the sTR4 socket, the second is sTRX4. It looks a little far spaced out from the center to be a power pin but could be GND if you are lucky, or some used data pin if you are not. If they are GND pins you will probably not have any issues even if you didn’t clean it. It depends, but hopefully not. There are lots of GND pins so a loss of contact on one or two may not do much unless a high speed signal is adjacent.

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I contacted the seller and they can refund me but they don’t have another cpu right now. So I’ll go thru Amd and get this one swapped out. Its a bummer but sometimes this stuff happens. Maybe I’ll get lucky and they’ll cover shipping also :grin: Thanks for the help guys.

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Please don’t take any offence, but wow youre making a mountain out of a molehill.

Take your CPU, put it in your computer and get on with your life.

You should see some of the LGA CPUs I install or swap out, they’re totally blue/green with corrosion, and they work just fine. I do freelance computer repairs for a machine shop who grind gearsets, so the atmosphere is laden with mineral oil. It corrodes motherboards etc in the PCs that run the machines, but the CPUs never give any trouble.

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@HellDiverUK No worries. This is actually my first computer build in 12-15 years so I’m being careful that I don’t make a stupid mistake and ruin a $400 mb. I have no idea if those 1-2 contacts out of the 4,000+ on the processor not connecting will hurt anything or not. I’m also not in a rush for this build. So why not take full advantage of the factory warranty? I have other reasons also but that’s enough :slightly_smiling_face:

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I’d RMA it straight up.

Anything you screw around with from this point is potentially invalidating your warranty or maybe making things worse, and this is what a return policy is for.

You should not be receiving a new Cpu with crap on it in the first place.

edit:
I see you saw sense :slight_smile:

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