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Vega 64 just semi killed itself. Help

Dempsey22 said:
Thanks very much thats a lot of helpful information. I soldered a tiny 3 pin mosfet on my SKR mini board for my 3D printer. It was wedged in between 2 fan connectors and extremely awkward. I must have done a reasonable job as it's working perfectly ever since. The GPU looks a lot easier due to the location and it's just 2 pins.

I'll pick up the solder paste and go from there. Do you recommend anything in particular regarding cleaning the area before putting down the solder paste? Also from I can tell the ferrite can be mounted either way, would that be correct?
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Yeah, that solder job you did before sounds a lot harder than this one. Soldering in a tight area like that is a real pain. This time it looks open and like a nice area. You could always mask off the nearby components with tape but usually solder paste is fairly safe for SM work like this. If you do use tape make sure it's Kapton tape, which won't melt at soldering iron temps - normal tape might melt onto the pcb and create a worse problem than no tape.

The component should work either way round.

To clean the area, personally I'd use some flux and scrape off the old solder with the iron, if there is any. But realistically you should get a contact either way with the paste and I'm conscious about not adding too many things to the shopping list (good flux is another £10-15). Depending on what there's you could also clean up that area of the pcb with iso alcohol before you start.
 
Just had the same thing happen to me when installing the stock cooler. I believe the issue is that we are missing the little plastic barriers that were once on parts of the card that protected it from shorting out on the cooler.

I just got a 3rd R9 290X off a buddy. It didn't have a AIO as that was sold with a different card, so I just came with a non functioning stock cooler (needed new fan). I ordered a new fan and it arrived. During assembly I was cleaning the card and removed 2 little loose squares of clear plastic that I figured had fallen and stuck to the card at some point. Assembled the card and put it in a PC and fired it up. Heard a little *poof*. Took it apart and found the blown B200 next to the fan power connector.

I'll older the part and try replacing it and see how that goes. Will also look to use some plastic shields, one on that area of the card, and try stock cooler again to see if the same thing happens or not.
 
This is interesting, looks like by removing plastic u shorting the card and this resistor burns, its good in a way, but damn that's a bad design.
 
Indeed. Well, I've got 100 of those resistors coming so will try my luck and let you guys know how it goes. Almost need a stock cooled reference card to take apart and see where the plastic pieces are originally.
 
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