Aopen ax63 pro motherboard broken?

[Guybrush Threepwood]

I replaced the power supply of a system because pushing the power button
didn't do anything anymore. With the new supply, the power led of the case
doesn't light up, but the HD activity led does. The monitor connected to
the computer just gives a 'no signal' message. The motherboard is an
Aopen ax63 pro. Is it possible it broke together with the power supply?

 

[paulmd]

I replaced the power supply of a system because pushing the power button
didn't do anything anymore. With the new supply, the power led of the case
doesn't light up, but the HD activity led does. The monitor connected to
the computer just gives a 'no signal' message. The motherboard is an
Aopen ax63 pro. Is it possible it broke together with the power supply?

Sure, that can happen. Also possible your old Power supply is good and
your board isn't.

Check for bulging or leaking capacitors on the motherboard.

 

[Guybrush Threepwood]

Sure, that can happen. Also possible your old Power supply is good and
your board isn't.

Don't think so, since none of the leds lit up with the old one.

Check for bulging or leaking capacitors on the motherboard.

Can't seem to find anything out of the ordinary there. Any other ways of
testing the board?

 

[kony]

Don't think so, since none of the leds lit up with the old one.


Can't seem to find anything out of the ordinary there. Any other ways of
testing the board?

Not to second-guess you, but can you see the caps behind the
CPU (slot)? Those would tend to be more likely to fail, but
at least AOpen used some decent caps on their boards at the
time (Sanyo).

At this point the battery might be shot, if you have a
multimeter take a voltage reading of it. If you have a
spare battery swap it in. Try clearing CMOS (while AC power
is disconnected).

Also inspect the system, making sure cards, cable, etc,
didn't come dislodged while the PSU was being replaced.

You might also try stripping the system down to bare
essentials- unplug everything but the CPU, video, and one
memory module then try it.

 

[Guybrush Threepwood]

Not to second-guess you, but can you see the caps behind the
CPU (slot)?

Can't see anything wrong there either.

At this point the battery might be shot, if you have a
multimeter take a voltage reading of it. If you have a
spare battery swap it in. Try clearing CMOS (while AC power
is disconnected).

Tried this, still the same problem.

Also inspect the system, making sure cards, cable, etc,
didn't come dislodged while the PSU was being replaced.

Done.

You might also try stripping the system down to bare
essentials- unplug everything but the CPU, video, and one
memory module then try it.

Done.

I could check the CPU pins but I don't see how to take off the
processor. Any help there?

 

[DaveW]

Yes, it is very possible.

 

[kony]

Can't see anything wrong there either.


Tried this, still the same problem.


Done.

I could check the CPU pins but I don't see how to take off the
processor. Any help there?

It's a slot one board so the CPU is cartridged... it just
pulls straight out but there might be clips on both ends
that need depressed while pulling.

It's not likely the CPU cartridge pins are the problem,
unless the CPU had previously been removed while the system
was very dirty and dust/etc got into the socket in excessive
amounts, or if the system was operated in a very severe
environment such as extreme humidity or industrial residue.
One system I salvaged from a gravel quarry comes to mind, I
think if I'd gotten it wet it would have turned into a giant
block of concrete when it dried.

Is the new PSU known decent/working/adequate for this
system? If it's not proven on another (working) system of
similar or newer vintage it might just be that you were
unlucky in selecting a bad replacement PSU. A bad PSU can
exhibit the symptoms you now have... I'd just have thought
it less likely since the prior PSU was replaced, tipping the
odds a bit in favor of the motherboard being the problem
though if you had other parts you could swap in (like video
card), that's what I'd try next since swapping a video card
is quicker and easier.

 

[Guybrush Threepwood]

Is the new PSU known decent/working/adequate for this
system? If it's not proven on another (working) system of
similar or newer vintage it might just be that you were
unlucky in selecting a bad replacement PSU. A bad PSU can
exhibit the symptoms you now have...

I'll test it in another system.

I'd just have thought
it less likely since the prior PSU was replaced, tipping the
odds a bit in favor of the motherboard being the problem
though if you had other parts you could swap in (like video
card), that's what I'd try next since swapping a video card
is quicker and easier.

I already tried swapping the video card. The monitor flashes a bit,
something it does not do with the old video card, but that's it. Nothing
to see on the screen.

 

[Guybrush Threepwood]

I'll test it in another system.

I used the PSU from a working system in this system and no problems
anymore. So it seems the new PSU is not working. Thanks for the help.