I’ve been attempting a psu swap for the Alienware aurora r14 (if anyone has any tips for that, please let me know too). So far I’ve worked with MODDIY to make an adapter that they atleast seemed to think would work for this case; but it didn’t work when used with the 24pin output from a corsair SF750. Swapping back to the OEM psu, the pc would still boot and work fine. But I began trying to diagnose what the issue could be. I noticed a few oddities with the layout, which I believed could be fixed by bridging the ps_on pin to force the psu on before pressing the power button. This is where the subject of this post comes up, this caused the lights to come on and the fans to spin when the power button was pushed, before shutting down after a few seconds. Now the mobo will not respond even to the OEM psu. I’ve tried holding down the power button while completely disconnecting; taking out the cmos battery, and holding down the power button while plugged in (I saw this recommended on another post). None of this has returned functionality to the system. Does anyone have a recommendation for a fix or am I cooked?
No PSU adapter will work as the OEM PSU provides 12V only I'd bet it's a fried / shorted mobo
Unfortunate; and yeah I think the psu swap is likely impossible. Though I don’t think that it’s because of voltage as you say? I was able to measure 3.3 and 5v rails on the OEM psu while it’s plugged in. And for what it’s worth the adapter does (mostly) provide the correct voltages. It seems to be a sequence issue. But I digress, thanks for the feedback. I’m currently giving an overnight rest to maybe reset a tripped poly fuse. If that doesn’t work I’m going to assume I’m cooked and make the swap to a new mobo and case.