Is there a way to retrieve the bios password from the chip? I haveover 30 machines with the same bios password and it would be too much time to do the patch on all 30. Otherwise these lenovos need to be scrapped and that would be a big shame!

Re: Mini Lenovo PC Dead Power supply (ACbell PCH018)

Thanks for the additional tips! I'm eager to continue diagnostics to get full ATX compatability.

One of the things I'm considering is buying a DC-DC converter 5V to 12V to give the board the standby power it wants. However, it would have to do some switching as soon as the 12V line from the PSU comes on otherwise it shorts the +5V standby to 12V line through the HP motherboard.

Any suggestions?

Re: Mini Lenovo PC Dead Power supply (ACbell PCH018)

Thanks to your tip I got it to work! It would be ideal if we could actually switch on/off the PSU with the motherboard.

I actually just tried what you said and I put the PS_ON from my ATX power supply on the motherboard where the green wire of the PCH018 connects to the motherboard but there is no luck. Basically the PC doesn't start when I press the PWR_BTN.

Re: Mini Lenovo PC Dead Power supply (ACbell PCH018)

I know this thread is almost a year old but I have some questions related to this power supply.

I'd like to replace this PCH018 with an ATX power supply and I'm confused with this green (seemingly) PS_ON wire. There seems to be a little bit conflicting info in this thread. Is it a PS_ON signal or is it a PG signal?

As I measured the PSU on it's own (not connected to the MB) I also found (as Dannyx has) the green line has has 3.3 V on it. Also 12 V is on the yellow lines all the time, by the way. This...