[Cialug] OT: USB Issues

[Tim Wilson]

My spare PSU didn't have enough 8 pin connectors, so I couldn't plug in my
video card.  But, I hooked up everything else, and not long into the boot
process (pre-OS), the noise returned.  It is definitely coming from the
speakers.  If I shutdown the PC (but leave the PSU on), the speakers stay
powered, but no noise.  I should also say that I can plug the speakers into
a USB battery and again, no noise.  And the audio comes from a connector on
the back of a monitor.  So whatever input is selected on the monitor, is
where the audio comes from.  But the noise stays regardless of the input
selected, if the speaker power cable is plugged into my PC.

Would purchasing an add-on USB card fix the issue, or do you think the
noise would follow?  Or should I just bite the bullet and buy a new MB?

Now I'm having another problem.  When it is on my desk and open, I can get
the LEDs to work.  But on the floor, the LEDs are off.  I'm sure it's a
power issue.  There's a power cable that runs from an ATA power connector
to a board that controls the LEDs. I think one of the connectors came loose.

Did I say I wish I hadn't bought this thing?  I got scared off from
assembling my own since it had been years since I built my last one.  I
might have to do that after all.

On Thu, Nov 18, 2021 at 2:56 PM L. V. Lammert <lvl at omnitec.net> wrote:

> On Thu, 18 Nov 2021, David Champion wrote:
>
> > I have a PC power supply tester that give you a reading on all of
> thevoltages. Also have a multimeter, and we have an o-scope (I'm not
> qualifiedto run but others are) at Area515.
> >
> Would it not be simpler to just order a new PSU? At a cost of $40, .. your
> time value would be WELL above that - we keep two or three on the shelf
> at all times.
>
>         Lee
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-- 
Tim
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