New 330W adapter design board, how to check output?

So seems the "new" 330w power adapters that have the typical monitor style 3 prong input (not the three circles) have a different internal board design.

How would I check the output of the new modded PSU limit? I want to see if it does power beyond the ~260W the normal pin-delete 240W adapters can do.

Details:
The new 330W board (PN 0Y90RR) does not use the SMT chip id for the PSU, rather a discrete two pin DS2501. Seems the ID portion is just a large floating pad on the PSU. No longer like the design on:imsolidstate where he has to ground the other end to "unlock the ~400W output" (read details below)
https://www.imsolidstate.com/archives/1256
OneWire protocol chip of the 330W, DS2501, one end touches the ID wire of the plug (and this large floating pad) and then goes through a series resistor to ground.

I removed the TO-92 package 240W id chip from a flextronics PSU, wish I had a 240W Delta which I believe are the discrete ver. with three large pins. I extended the attached power adapter output ID line (norm blue) with a white wire to the tiny 3 pin SMT ID chip out (lower left pin). But again it seems the target area on the 330W adapter board is just attached to nothing. Thus I grounded that pad anyways like the imsolidstate plans. Also grounded the two other pins on the 240W ID chip. Used black hot glue to keep the wires from moving while soldering to the TO-92.

PSU by 2CPU posted Sep 24, 2018 at 12:12 PM

 

Soldering is a success. Laptop is happily reporting it as 240W. BTW above is what I meant about different input cords.