I am trying to replace the power supply on my Z420, which has become flakey. I have purchased a new power supply which has P/N 623193-001 but is also marked as "Spare P/N:632911-001". That spare p/n is the same as the p/n on the original PSU.
The only difference between the new PSU and the old is that the old one has 2 6-pin PCI Express connectors for powering video cards (marked G1 and G2) wheras the new PSU has only one (marked G1). However, I have installed two video cards (GEForce GT740 SC 4GB).
The question is, can I use a power splitter cable plugged into the single G1 connector in order to do this?