Corshair RM750 - doesn't allow for board to turn on

[kotel studios]

Well, this is odd.

Even after sitting for more than 30 minutes unplugged there's still deadly voltage inside the primary cap (230VDC). The APFC should discharge the caps in less than 20 minutes, so maybe the more advanced could figure out what is happening here.

[stj]

apfc is only active at load and with the psu running.
a lot of pc psu's dont have discharge resistors either - i noticed that before.

[kotel studios]

I seem to have found the issue that made the capacitor not discharge (and potentially the thing that caused the FETs to burn out). I forgot to solder the schottky diode back
Just to be on the safe side I'll let the capacitor fully discharge for a few days before I go ahead and fix it up (hopefully for good).

[stj]

discharge them with a 470k resistor, .5w or more

you have me curious now, i need to grind down an FP packaged fet!

[kotel studios]

Finally replaced the MOSFETs again and soldered that schottky diode back in place.
So far the PSU does not blow up, generates the voltages proper and can spin up an 3.5" SATA HDD. Sadly I still cannot power on any boards with it. PG is there (5.08V) when I manually short PS_ON and GND. Powering up just an small MATX board without the CPU P4 connector (to minimize load, this always worked for me on all PSUs).

Any ideas?