Quote Originally Posted by nicolasrg View Post
My friend did the vdroop measurement. 47 Ohms, is that right?

He couldn't find the GND to do the other measurement. Can you tell me where's the GND pin?
Well, I can't tell you if the value of 47 Ohms is correct. The whole point was that you take the measurements because nobody else would.

GND:
Ever wondered what voltage the black leads from your PSU carry?
Try to measure resistance from your motherboard tray to the PSU chassis and so on.
You can easily find many GND-points when you follow (multimeter set to continuity test) the black wires coming out of your PSU. I assume that you still have a PSU which has color coded cables. If it's one of the modular ones with black cables only, it's not much more complicated, but judging your basic electronics knowledge by your postings so far, it could get tricky.

I'm sorry to say, but I'd rather have someone else take additional measurements before giving any advice that could lead to some fried boards. Hope you understand.