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HP Recommended
HP Z1 v1
Microsoft Windows 7 (64-bit)

Hi folks

 

My Z1 won't power on, shows no signs of life. I think it may be the power button that has broken.

The relevant connector on the motherboard is labelled P5, two rows of 6 pins with one pin absent on the lower row.

I'd like to try shorting the power pins to verify if it is the power switch, but I can't find the pinout for this connector.

So I need to know the pinout of the P5 connector.

5 REPLIES 5
HP Recommended

Surely someone can offer some advice here? I need to find out if my Z1 really is dead.

HP Recommended

you already have the pinout, from the power button note the color of the two wires

 

now find the same 2 color wires on the front panel connector

HP Recommended

No, doesn't work like that, it has 4 wires from the power switch, I'm guessing two are the switch and two are for an LED built into the switch.

HP Recommended

Ian... If we were HP engineers we could give you the pinout.  However, we're not and your workstation is not common to us.  We get the heebie geebies giving advice about shorting pins on a motherboard we don't have experience with.  I hope you understand.....

 

Having said that I believe your workstation is a contemporary of the ZX20 workstations and back in that era we had a wonderful HP engineer helping us, Dan_WGBU.  He did have access to the schematics.  For example, take a look at his info on  THIS .

 

Do a google search for Z420 or Z620 pinout and I bet you'll find some hints that will help you....

HP Recommended

I understand. I didn't fancy randomly shorting pins myself.
I'm starting to realise how uncommon/rare the Z1 is, especially the 1st gen, there is just so little info out there.

 

 

† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.