I have to say that I have had very little bad luck on Ebay. If
something didnt work, the seller would take it back.
While most are reasonable, it does not exclude a few bad
apples.
Because the two motherboards are displaying the same symptoms, I am
baffled. The video is integrated so I cannot try another one.
Untrue, you can still plug another card in, having
integrated video seldom if ever limits another card being
used, although if the board lacks an AGP or PCI Express slot
it might then need be a PCI card... but PCI cards are the
most compatible and often less power hungry anyway so they
are the first pick for troubleshooting purposes.
Clearing the bios sounds like an excellent suggestion but I cant find
it on the motherboard. I am searching for the schematic for it today.
I tried another Celeron processor too. The memory was swapped too.
Just unplug AC and pull the battery for 10 minutes. This
will clear CMOS.
What is throwing me is that there are no beep codes to look up. If the
thing would beep its problem at me I would have something to go on.
Maybe, but in past years I noted far more boards beeping
while in more recent they remained silent. It seems beep
codes are only wishful thinking in most modern systems.
Would the power supply perhaps play a role? I dont think I have an
exact one to try swapping, nor do I have a volt meter.
What does "exact one" mean? It need not be exactly same,
and might be quite undesirable for it to be same if the
supply capacity or quality was the problem. Rather same
type (for example ATX) with decent quality and known
adequate amperage for the parts.
I am about to give up on this 5 year old E-Machine.
E-machines did often have PSU failures. If it is mATX, just
take a regular ATX (if you had one handy) and set it on a
box next to the system to elevate it enough to plug into the
board and other parts, OR you could just pull the board out
and place on a non-conductive surface which would also allow
more careful examination of the board (like caapcitors), a
disconnecting of the cards and cables (which should only be
a good thing for troubleshooting purposes).