Re: How to Recondition (Reform) Electrolytic Capacitors and Why
^ The MOSFETs won't get damaged, but depending on the motherboard, other things might. Case in point, some older AMD and Intel boards from the early and mid-2000's used the CPU V_core also for the chipset (example: Intel Pentium 4 Northwood motherboards with i845 chipset). So in those cases, you'd be feeding a high voltage into some chip that shouldn't be.
With most PSUs, though, I think it should be possible to feed voltage on the output rails to reform the caps. Sometimes I back-feed 12V in my ATX PSUs to run tests on the fan controller circuit.
^ The MOSFETs won't get damaged, but depending on the motherboard, other things might. Case in point, some older AMD and Intel boards from the early and mid-2000's used the CPU V_core also for the chipset (example: Intel Pentium 4 Northwood motherboards with i845 chipset). So in those cases, you'd be feeding a high voltage into some chip that shouldn't be.
With most PSUs, though, I think it should be possible to feed voltage on the output rails to reform the caps. Sometimes I back-feed 12V in my ATX PSUs to run tests on the fan controller circuit.
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