The flash procedure seems to be "do it via the the web interface, if the IMM won't load, boot the backup IMM and do it via the web interface".

As far as I could see in the manual, if the backup IMM won't load either, replace the motherboard. Surely must be a header somewhere I could flash from, though?

Struggling to find any cheap replacement boxes on eBay, thankfully it's just a Plex and file storage server of little consequence to anything mission critical - glad I'm not trying to explain to the bean counters why the beans are no longer being counted.

No chance it's the CMOS battery?

¯\(°_o)/¯


Would surely still boot, just lose its BIOS settings? I've taken battery out and cleared CMOS to no effect.

Re-seated ram, add-in cards, different psu yadda?. We're in hail-mary-pass land now... (I didn't know you could oc a psu?)

Tried all that (don't have bother PSU to try).

Didn't OC the PSU so much as accidentally blow up half my house due to 1950s electrics going wrong

I've had a pc that wouldn't post until I pulled the hdd. Then it would post, boot from a cd, and ultimately from a new hdd.

Probably the PSU then.

Get your Multimeter out and measure the outputs of the 12v and 5v rails on the PSU motherboard connector and see what it is giving out.

...with a paperclip shorting pins 15 & 16 (green and black) natch

Will check at the weekend.

Worked for me!

So, what happened?

I got drunk and forgot all about it?

Probably for the best.