Hi Wrapper
I just found this posting and have a full size 1070 and have a similar issue with the blown fuse on the 12v PCI-e socket.
So some questions ... have you or anyone else had this issue with the full size card ? I looked for cooked or shorted caps and so far have found none.
Does the full card have the same cap cracking issues ?
I have so far determined two areas on the card that use that 12v PCIe power rail ... 1st is the power feed for the Logo and Fan Stop LED's on top side of card.
2nd is it seems to also feed power to the video memory. I know that the memory doesn't use 12vdc but about 1.5v ... and so far have not been able to find the controller for the two mosfets that feed mem power so as to regulate the 1.5v.
My blown fuse has a 10 written in a green square and looks to be plain white ceramic body.
This doesn't seem to make sense for me as the 12v PCIe socket is only rated for 75 watts. So that 10 amp fuse would allow far more than it's rated 75W ... like about 120W.
I would be putting a 6A which would be 70W
Does this make sense to you ?
Since all I have bee able to find is this blown fuse ... I'm wondering what could have caused this ... bad mem chip ? Have checked for dead shorts on bypass caps for mem and all seems good there.
Any ideas ?
Plus one more question ... regarding the power for the GPU ... I seem to be getting a dead short across the bypass caps for the GPU or so it seems.
I have read that the GPU has a very low resistance across it's power pins ... so would this cause what looks like a short to ground from Vcore ?
I read 0.5 ohms from any of the large inductors to 8 pin power connector GND ... seems to me to be very low ... like way too low.
I have 4 other dead cards and they all exhibit the same readings from any inductor to power GND.
I have to assume this is normal ?
Pics included