Have you checked the voltages on the other psu? If they're out as well it could be heavy electricity.
Oh, here's a thought.
Have you tried checking the voltages with the bathroom light off?
Other PSU is near enough to 12 and 5. Bathroom light has been off. I'll try with it on.
Always helpful Kos. (fail)
Did you check the voltage with a load attached? No load on a switched mode PS is going to give squiffy voltages, so may not be the psu that killed it.
(ant's old (old old) bathroom light used to knock out his Internet when it was switched. We cling on to the past round here, it keeps us from noticing how devoid of exciting newness our lives are)
It was plugged into the motherboard and "on" when I tested. So I'd hope that would be enough load.
I've found somewhere fairly local that sells the same motherboard, it's difficult to find boards with 6 sata sockets these days. Really don't want to have to buy all 3 parts just to check which is dead :((
Is everything electric fucked, and not just your sockets?