Right, this is a slightly different problem to those I experienced a couple of days ago in this thread:
http://forums.hexus.net/scan-care-he...er-switch.html
I've installed a brand spanking new PSU. I'm pressing the power switch, and the furthest I'm getting is the Gigabyte first screen, before it either hangs or turns itself off. Sometimes I'll press the power switch and it will instantly turn off. Other times I'll last long enough to get one POST beep before it hangs or turns off. Either way it doesn't get anywhere near booting.
Is my motherboard dead?
NB - My old dead PSU smells a bit like something is burnt, I wonder what it is...