| In both the schematics, you can see that the purple wire comes out of the 24pin +5 volt standby connector, then go to a step-up converter. This is because with standard ATX connectors, the standby (SB) is run with 5 volts. However, HP decided to screw standards even further by requiring a 12 volt standby! Luckily, the adapters I mentioned above already come with the step-up converter, which is the big black bulge in the middle of the wires covered in shrink wrap. Also, the wires coming out of the 24-pin grounds (COM) are a little different in the two schematics, but the PWR_OK and PS_ON are the same in both, which I think are the important bits. |
