I wonder if anyone has any clues to this odd behaviour?
A couple of weeks ago, my trusty 7 year old PC began
to spontaneously switch off while booting...usually after
POST but before Windows started. No messages, just
gone...as if I had removed power. This happened
every first boot for days on end...but on second boot,
it was fine. It didn't matter whether the first boot was
morning or evening, but the second boot would load
and stay on as long as I wanted it to.
Hmmm, thinks I...it's as if something is a bit dead, but
recharges itself by the second boot...after power has
been sent at it a while.
So...I implicated the MOBO CMOS battery!
So I changed the battery for a brand new 10 year
Panasonic...and re-entered all the now lost BIOS settings,
which I had thankfully written down...and all was well...
...for a week...
I am now getting the same symptom. First boot shuts
down and second boot is fine...but BIOS is still intact.
I guess the battery could be duff, but I wonder if
there might be anything that has drained it or if it
is a different problem entirely...which would be odd
as a battery change fixed it initially.
Any sensible and informed thoughts on this?
For what it's worth, the MOBO is a SOYO KT333.
BIOS is Pheonix Award k7vxb, which has not been
flashed for years but has been working fine.
No new peripherals for years either.