Reply 20 of 25, by franky52
LightStruk wrote on 2020-11-11, 17:10:
An update for anyone watching this thread - I finally checked the voltages on the PCI slot, and the +12V signal rail is live, but the -12V rail is not.
I also checked the pins of the serial ports, and at least two pins had voltages like -10.5V.
Ideally, I would still rather populate the riser card correctly, since that's less cumbersome than running a bodge wire from somewhere on the motherboard. But that requires knowing what to populate it with.
Any update with -12v rail? I´ve got the same sound card and in my HP T5720 that rail is also missing. I was about to buy a -12v converter but it would be a better choice if I can get that current from somewhere else.