HP Z4 G4 Activation?

[wandoqebu]

I feel really, really dumb and I can’t tell if it’s me or a faulty motherboard. When I hook up my HP Z4 G4 motherboard into the power supply I had to get for it I can see a white light that blinks briefly every couple of seconds on the same corner what I assume the built-in power button is but pressing that button does nothing. I’ve tried to find online what the traditional front panel pins are but couldn’t find any documentation anywhere. So, for anyone else who has or knows about this board….. Which pins are the front panel ones, and is the built-in button a power switch?

[DGroves]

such information if documented, would be in the z4 G4 service manual which can be downloaded from the HP z4 g4  pages i also know the z2 G4 does have such a pinout and that boards panel pinout may have also been used in your g4 model

z2 pinout:

https://h30434.www3.hp.com/t5/Business-PCs-Workstations-and-Point-of-Sale-Systems/HP-Z2-G4-Power-but...

g4 service manual:

https://support.hp.com/us-en/product/hp-z4-g4-workstation/16449890/manuals

the troubleshooting section of the service manual may be of help

https://kaas.hpcloud.hp.com/pdf-public/pdf_6775743_en-US-1.pdf