Twice recently my Dell Dimesion 5000 has failed to power up. As if dead.
The on light flashed yellow faintly, but otherwise there was no sound or movement anywhere.
Both times it suddenly revived an hour or two later.
In both case the mains power had been off. The first time after a house fuse blew.
The second time after I'd happened to have unplugged the machine for an hour or two. And I'd done a normal power down first.
From the usual power-up and power down there is no problem - which suggests that the issue is related to having the machine off the mains supply.
I'm pretty technically competent. But this has me puzzled.
Is there any explanation for this?