Just putting this out there in hopes that saves someone else some time…
Way too long ago, I set out to rebuild sandeen.net into an even lower-power configuration. Today it uses about 40W, and I picked out some parts which got it idling at about 18W. But due to lack of time, and timidity about migrating from RHEL5 to RHEL6 I still haven’t migrated. I put a couple Maple Crest SSDs in for the root fs, and now I think I’m finally on my way, but one sticking point was that I was unable to find the BIOS setting to get the box to turn itself back on again after a power failure. (I do have a UPS, but if that gets exhausted, I want sandeen.net to come back when the power does!).
Anyway, here’s how you do it:
- Under “Power Management” disable the “EUP function”
- Under “Integrated Peripherals” change “PWR status after PWR Failure” to “Always On”
This had me stumped for a while; I knew I had to disable “EUP” (a European directive for pushing down power consumption of devices like this, something I generally applaud. Shipping power-savings by default makes good sense, but I have a different use case.)
So when disabling it, I did get options like “Wake by PCI” and “Wake by Ring” (For everyone running a BBS?!) but nothing about power state after power fail/resume. Why this is under “Integrated Peripherals” I have no idea, but if you happened to be looking for it, hopefully this helped you out. ;)
Update: Apparently this isn’t unique to Jetway boards. Rik had a similar problem; on his board it was the “ERP” function (not EUP) but the resume setting was also under “Integrated Peripherals” – go figure!