Hello i got a card with 12V short, found an IC blown Q510, remove it short persist, found that the short is on 12V GPU, remove all the Mosfets and the short still there, i inject 1.5V to the line and i got 1A of consumption, nothing getting warm, this could be the GPU itself?
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if u remove all mosfets u canot have 12V bypass to mem and core. u need at last 10A with 1V to show something on thermocam. q510 switching 12V . looks badly shorted. heat can fuse layers under itLast edited by ktmmotocross; 12-23-2024, 02:58 PM. -
I see, thanks for that info, also I didn't check that the resistance on Vcore is low, I was thinking it has a high Z, one of the MOSFET is shorted so now I'm checking that to replace them and also fix the q510 got a destroyed viaComment
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Hey!
I have a problem with Gigabyte Aorus 1080. The card seems fine (expected resistance on vcore, pex, 5v, 1.8v, 12v and reset) except for a dead short on vmem (FBVDD). It's interesting failure mode, cause usually (in my experience) when memory fails it still retains a few ohms - this one is literally a dead short.
I removed the inductors and tried inject voltage (0.8 V at 6 A) which only seemed to warm up the cables to the card while the card itself didn't show any hotspots.
Is there any way to narrow down the search for a short? I would prefer not to remove... -
Hey guys,
So i got this RTX2070 Super from Gigabyte for cheap and the reason i actually got it in first place is, because it initially had a full short on PCIE_12v, so my plan was to basically feed some juice in it on my test bench and see what gets hot using my thermal camera. This would have potentially been a quick repair, however things didn't actually work out quite as planned.
Whenever i hooked up one of my lab power supplies to my testboard to feed the 12v rail, well, even tho i had it current limited at 12v, the charged capacitors actually blew the 10A Fuse... -
Hello.
Have this Gigabyte 1660 Super that have no EN signal for PEX. It supposted to go from PGOOD from 1.8V ic but i cannot identify this ic... -
Hello,i have this motherboard for repair and sadly it has no 19v at the
Second mosfet output.I don't have schematics so from now on i have to go with my legs
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I removed the mosfet to test it and it's good, I think the 19v line is shorted to ground. I also found something strange, a coil completely shorted at its ends, marked magic 3R3, I'll post some photos to help you understand better and if I can make a more accurate diagnosis, could it also be the SIO chip short?
Cheers
Mauro -
So I just got off ebay this Gigabyte RX580 Gaming with 8GB Micron memory . The thing is the card only starts if I do the paper clip short on BIOS . I booted using the paper clip method in Hive , reflashed the original BIOS again but still won`t boot unless I do again the short on pins 1+5 . Anyone knows why , or how should I recover from this ? Thanks
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