Reply 20 of 22, by Doornkaat
The capacitors next no the other cache chip are identical to those you need to install on the empty pads.
But I can not give any gurantees. Everything I wrote is simply deducted from the pictures I found and I haven't got any schematics verify.
The board turning on on its own sounds dodgy still. 🙁
Is there a BIOS option for "restore power on AC power loss" or similar?
Edit: Found this in the manual:
The Soft-Off mode refers to powering off the system through a momentary button switch (ATX switch) or through the software as opposed to disconnecting the AC power by way of a rocker switch or other means.
So the board appears to have a setting that makes it turn on as soon as power is applied to the PSU instead of using the ATX switch. That would explain the instant power on after the PSU was connected to the board. On second thought I may be interpreting this wrong and it simply explains ATX power management since that's new at the time.
(I'm not sure I understood right: Did you plug the PSU in on the motherboard while the PSU was connected to mains power? It is good practice to disconnect the PSU from mains power before plugging it into the motherboard. Plugging the ATX connector into the motherboard with the PSU on can also in some cases trigger a system start since ATX PSUs always supply +5VSB.)