<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><div>Hi,</div><div><br></div><div>I presume this is the manual you already found: <a href="http://ftp.parisc-linux.org/docs/platforms/712_technical_manual.pdf">http://ftp.parisc-linux.org/docs/platforms/712_technical_manual.pdf</a>, the power supply stuff is in 7-1, also a small bit about the START_PWR_DOWN_L signal.</div><div>The wire colours described match what I have in my 712/60 (the motherboard is A2263-66510), pin one/white wire is closest to the SCSI connector.</div><div><br></div>—<div>Ville</div><div><br></div><div><br id="lineBreakAtBeginningOfMessage"><div><br><blockquote type="cite"><div>Mouse via rescue <rescue@sunhelp.org> kirjoitti 6.6.2025 kello 19.47:</div><br class="Apple-interchange-newline"><div><div>I've got a motherboard by HP. It's marked A2263-66511, which I think<br>means it's the board for one of the PA-RISC 9000 712/* machines.<br><br>I'd like to get it running. But that means feeding it power, and I<br>don't have its case. The power connector looks (I didn't try plugging<br>it in) roughly mechanically compatible with the pre-ATX power<br>connectors, the one with two 1x6-pin connectors, though the board's<br>pins aren't quite right for that. Also, it has only 11 pins, so it<br>obviously isn't the same.<br><br>I did manage to find a PDF describing the power supply, though I'm not<br>certain it's for this board; if it is to be believed, the power pinout<br>is nothing like that pinout.<br><br>The PDF says<br><br>pin<span class="Apple-tab-span" style="white-space:pre"> </span>what<br>1<span class="Apple-tab-span" style="white-space:pre"> </span>START_PWR_DOWN_L<br>2<span class="Apple-tab-span" style="white-space:pre"> </span>POWER_ON_L<br>3<span class="Apple-tab-span" style="white-space:pre"> </span>+5<br>4<span class="Apple-tab-span" style="white-space:pre"> </span>GND<br>5<span class="Apple-tab-span" style="white-space:pre"> </span>+12<br>6<span class="Apple-tab-span" style="white-space:pre"> </span>GND<br>7<span class="Apple-tab-span" style="white-space:pre"> </span>+5<br>8<span class="Apple-tab-span" style="white-space:pre"> </span>+3.3<br>9<span class="Apple-tab-span" style="white-space:pre"> </span>+5 (SCSI)<br>10<span class="Apple-tab-span" style="white-space:pre"> </span>GND<br>11<span class="Apple-tab-span" style="white-space:pre"> </span>+5<br><br>There is silkscreen on the non-component side of the board marking pin<br>3 as VDD, pin 5 as P12V, pin 8 as VDL, and 9 as VTERM. There is also<br>"GND" about midway between pins 10 and 11 and VDD about one pin spacing<br>beyond 11 (about where pin 12 would be if there were a pin 12); I<br>suspect those are supposed to be on pins 10 and 11. This fits well<br>with the above.<br><br>I could solder wires onto the etch side of the board for +5, +3.3, and<br>+12, but then I'd need to do something with pins 1 and 2. Does anyone<br>happen to know, or know of documentation on, those two pins, at least<br>enough to power the machine up?<br><br>/~\ The ASCII<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"> </span> Mouse<br>\ / Ribbon Campaign<br> X Against HTML<span class="Apple-tab-span" style="white-space:pre"> </span><span class="Apple-tab-span" style="white-space:pre"> </span>mouse@rodents-montreal.org<br>/ \ Email!<span class="Apple-tab-span" style="white-space:pre"> </span> 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B<br><br>_______________________________________________<br>rescue list - http://sunhelp.org/mailman/listinfo/rescue_sunhelp.org<br></div></div></blockquote></div><br></div></body></html>