Packard Bell desktop will not power up

caveat_emptor

pigeonpants wrote: »

Caveat
no power to mobo when shorting so does that indicate mobo fault?

thanks for your help

Yes it looks that way. There are futher checks you can do to see that the PSU is firing up when you press the start button but needs a multimeter and a steady hand.

macman

You would need a power supply tester (about £12 at Maplin). You can't test the output with a normal multimeter.
What result did you get from the switch test?

pigeonpants

Caveat/Macman
no joy from the switch test, a very brief (less then a second) fan activation then nothing.

caveat_emptor

<quote>You can't test the output with a normal multimeter.</quote>

Well that's the way I do it.

macman

caveat_emptor wrote: »

<quote>You can't test the output with a normal multimeter.</quote>

Well that's the way I do it.

Isn't a load normally required, the PSU tester simulates this?