Yes if I had more experience I would go for it. But would be taking a top big risk on this one. Ideally one would have the knowhow to test the card quickly at the sellers to determine if it was worth going for.Even if you purchase all of the equipment to do the physical rework without the experience of doing it your chances of success are pretty low. That is assuming you can source parts and equipment, which is possible, but not from your local big block computer store. In addition as mentioned above something burnt that chip, so you are going to probably need a pretty decent scope setup. Which again, without some electrical engineering background is useless.
Board replacement is pretty simple. Board repair is just a bit more complicated. If you are interested in repair look for a local tv repair shop, or ham radio repair. It is getting more rare, but the TV guys will sometimes have the soldering station and scope setups to do board work. The radio guys don't tend to go terribly small, but some of them are really good at package replacement. They usually charge by the hour with a minimum and don't guarantee work like this, but if you ask nicely they will usually help you out. For what that 3090 is worth it is probably worth chasing. If you do it though count on the factory warranty to be void, so if you think there is one go that way first.
Yea something popped the chip. Memory doesn't just burn itself off the side of the board. Something is running hot and my bet is that the memory isn't the only damaged package on that GPU.For that to be an even-money gamble, you'd have to have a 1-in-4 chance to fix it. Burnt memory? I'd say maybe 1-in-10 for someone very experienced who knows how to approach it. Without that knowledge? Multiply it by 100. The chances that something else is damaged is far too high in something like this.
This is a horrifyingly bad idea. It's not like fixing up a chair or a dresser that you buy at a yard sale.
The images shown in the GPU posting appear to show a blown VRM power stage, not VRAM. If it is the high-side FET that shorted out first, then 12V likely went to Vcore and the GPU is fried. If it is the low-side FET that shorted out first, then the GPU die may still be fine but the PCB may be charred beyond repair.
I'd say there is a 30% chance it is fixable.
Great comment, this is what I came to hear👍
I honestly didn't even look at the card.The images shown in the GPU posting appear to show a blown VRM power stage, not VRAM. If it is the high-side FET that shorted out first, then 12V likely went to Vcore and the GPU is fried. If it is the low-side FET that shorted out first, then the GPU die may still be fine but the PCB may be charred beyond repair.
I'd say there is a 30% chance it is fixable.