New M/B-CPU refuses to boot

[MR]

On Sun, Oct 31, 2021 at 7:29 PM Little Girl <littlergirl at gmail.com> wrote:

> Hey there,
>
> :
> It's possible the old failing power supply did some damage on its way
> out (in which case, I'd look hard at any of the older parts still in
> the machine) or the new one is bad or both (in which case, I'd look
> hard at all the parts in the machine). Are the fans running when these
> things are happening and/or not happening?
>
> Interesting theory.

The SSD is a fairly reliable one that hasn't been used in a few years and
wasn't installed anywhere during that time.

The M/B, CPU, RAM and video card are all brand new and have only been run
with the new power supply.

The new power supply was in the machine before upgrade for somewhere
between 2 weeks and a month and was working, with all the old parts,
flawlessly, AFAICT.

I'm not sure I see how the power supply can affect the boot in this fashion
- it works fine from the flash drive and not at all from the SSD boot in a
brand new installation.  The partitions look okay to me (there are 3 -
UEFI/boot, / and a swap partition.

Any other possibilities?  What would explain the boot coming up far enough
to do the fsck on /dev/sda1 and then nothing comes (graphics expected, but
even the virtual consoles are non-responsive).  Also, there is no grub
menu, which is really strange.

Thanks, tho.
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