On 22/09/2019 14:33, Dave Plowman (News) wrote:
The new PS arrived. It's not that. ;-)

Stripped the thing down and cleaned everything. The Asus board I have is
known to have a problem with the chipset cooling, so removed that and
cleaned and applied new paste. Battery was at about 2v so replaced that
too.

It fired up and selected the BOIS page. But on configuring, saving and
exit, back to not firing up at all.

So looks like an MB failure?

I'd just buy a new motherboard, but this machine is configured for my
needs including a Serial port and not sure many new ones have this?

Quite a few still do, if only as a header for connection to a backplate
mounted socket (not usually supplied). Last month I bought a motherboard
as part of my eldest son's birthday present, that had one and it is a
modern one for a Ryzen processor.

SteveW