Alcohol approach revealed definite hot spot in front left quadrant of CPU around pins in the 250 region. All the capacitors looked fine. Board is going into donor pile. Thanks for the tip!

Didn't realize that. I'll give it a try. Thanks!

Thanks for getting back to me. Greatly appreciate it!
Thanks for your recommendation that the CPU is probably dead due to that short.
Regarding the 5 amp draw, I set the current limit on the supply to 5 Amps so I believe it's operating in constant current mode. I am using a pretty heavy gauge wire so I am surprised it’s loosing so much voltage. The wire is the size of the MOSFET output pad. Probably can’t use a wire much larger and get it attached.
I have the heatsink off and was using an infrared thermometer (unfortunately I don’t have a thermal camera) to check temperature...

Hi, Would appreciate some help.
I have an Apple Late 2013 15" A1398 MacBook Pro with Logic Board 820-3662.
Get charger light but no fan spin or chime. No liquid damage.
Found PPBUS and VCORE both shorted to ground. Other rails were ok.
Removed VCORE MOSFETS U7310, U7320 and U7330. Found U7330 was in fact shorted.
With the 3 MOSFETS removed, get PPBUS and fan spin. VCORE is still hard shorted to ground (0 ohms).
Attempted voltage insertion on VCORE to locate short using bench supply set at 1.0 VDC and 4.95 Amps (max current for my...