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Old June 9th 04, 07:49 AM
Mike
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I can tell you from experience that the power supply is so proprietary that
the 24 pin connectors won't work,and it's very doubtful that you could
rewire a standard unit to work.Replacements can be had for much less than
Compaq's going price at various parts sites,if you look around.
"Jacques Clouseau" wrote in message
t...
Hi. I'm helping someone with a Compaq Presario 5320US desktop that
won't power on at all. The problem occured when the PC was moved from
one room to another. A previous tech told the owner to just go buy a
standard 350 watt power supply (which she did) and that he'd then
install it. This happened, apparently, without the tech even bothering
to do any actual troubleshooting -- plus, he was also apparently
ignorant of the fact that this Presario uses a non-standard proprietary
power supply. The owner can't get ahold of that guy now. So, the owner
says to me: can you fix it?

I can't even plug in the replacement standard power supply because the
motherboard has a 24-pin connector instead of the standard 20-pin.
Similarly, I can't use my quick-and-easy power supply tester because the
old power supply won't plug into that. I'd go ahead and start probing
with a DMM for proper voltages, but I'm under the impression that I'll
get nowhere with that if the power supply isn't already on and under
load. Finally, without a known good power supply, I can't even tell
whether the power supply was actually the problem, or whether it was
instead something else.

Any suggestions as to how to proceed? I did come across a web site that
sells 24-pin to 20-pin adapters, but does anyone know whether such
adapters even have a standard wiring pattern? Since the Compaq supply
is non-standard, how would I know whether the adapter would be wired
properly for it?

I found that the customer can buy an exact replacement part from the
HP/Compaq web site for $150, but doing so seems silly before we even
know where the problem lies.

Any help appreciated!

Jacques