Hello folks,
Some time ago I was tasked with repairing a laptop at work. It's a Hp Probook 450 g3. The power button was not working. I followed the guide to the letter, made sure I was grounded, etc. Was relatively simple. I reassembled it, and it booted it, no problem.
I left it running to do updates, etc.
It waited to be returned to it's former owner, but when I went to boot it back up I was greeted with a series of two long beeps and two short beeps. I look over the diagnostic codes for the model and make, and tried all suggestions.
I figured maybe I need to reopen it again, maybe I failed to reconnect some of the cables. So I did and was greeted to this blobby dark murky blotch! I was confused, for a moment I thought may be I left a piece of tape, but the tape I used should not have been conductive. My boss confirmed this as well!
I am not certain if this blotch was originally there, I would've noticed it, surely! Lastly the fact that I did open up another same make and model of laptop and it did not have this blotch. What could have went wrong? Is this potentially my fault? Is it possible the tape was conductive and a piece was left on there and melted? I can't peel or scrape off this blobby burnt spot either.
Some insight would be greatly appreciated, thanks!
quick edit: I should note, this image makes it seem way more larger than what it is! It's far smaller considering it is a laptop motherboard.
Some time ago I was tasked with repairing a laptop at work. It's a Hp Probook 450 g3. The power button was not working. I followed the guide to the letter, made sure I was grounded, etc. Was relatively simple. I reassembled it, and it booted it, no problem.
I left it running to do updates, etc.
It waited to be returned to it's former owner, but when I went to boot it back up I was greeted with a series of two long beeps and two short beeps. I look over the diagnostic codes for the model and make, and tried all suggestions.
I figured maybe I need to reopen it again, maybe I failed to reconnect some of the cables. So I did and was greeted to this blobby dark murky blotch! I was confused, for a moment I thought may be I left a piece of tape, but the tape I used should not have been conductive. My boss confirmed this as well!
I am not certain if this blotch was originally there, I would've noticed it, surely! Lastly the fact that I did open up another same make and model of laptop and it did not have this blotch. What could have went wrong? Is this potentially my fault? Is it possible the tape was conductive and a piece was left on there and melted? I can't peel or scrape off this blobby burnt spot either.
Some insight would be greatly appreciated, thanks!
quick edit: I should note, this image makes it seem way more larger than what it is! It's far smaller considering it is a laptop motherboard.