Originally Posted by magnek
I've seen this brought up by a few people, but why?
If the mosfets are hardwired to the power sources, all it means is there's a limit to how much you can pull from each source without going out of spec on either the power source OR mosfets. There's literally nothing stopping you pulling LESS power from each power source, and the bios is what's responsible for controlling how much power is drawn, so I don't see why a bios update couldn't fix this problem.
That could be more of a problem than just fixing it via bios.
It could be that hardware wise it is rigged to pull 50/50 or 70/30 or whatever from different power sources. Even updating bios might not by all accounts mean they can change the power draw through the mosfets
Also if what you say is possible, it means that the power coming to the chip from different mosfets has different source, so you are pulling more power through some mosfets instead of the ones connected to the PCIE slot, which means you are putting too much stress one some instead of another.
Overall I think it is about the design of the card. I don't think just bios update means can fix it.
Another option they might fix it, is lot voltage usage, which might cause less power draw, but go figure its effect on OC.