Hey guys!
I've recently bought a dead RX480. It doesn't have the 12v on the motherboard side shorted, and neither on the PSU side, the fusistors seem to be ok as well. The thing is that all the mosfets on the card are shorted on the Drain and the Source. (All the Gate's seem to be fine) The mosfets are MDU1511 and MDU1514, is this supposed to be normal? The drain shorted to the negative on the card?? There are a lot of smd capacitors that are shorted on the card aswell. I've tried to input 3v on the 12v line of the pci (I know it is an awfull lot) and I couldn't find anything warming up.
There is a small burnt area on the graphic card. (Attached pic) And a couple capacitores out of place close to the pci (I suppose these are not the problem, because the graphics card should at least boot on the 8x pci slot).
What do you guys think? is the short on the drain supposed to happen? What should I test next? If I have a short should it be present on the input pins?
Thanks in advance