On 25 Jun 2006 at 18:09, Bernie Cosell wrote:

> On 25 Jun 2006 at 22:35, Kylde wrote:
> 
> > simple test: FIRMLY unplug and reconnect all connectors on the 
> > motherboard, after that I'd suspect PSU

> I'll do that --- as for the PSU ["Power supply unit"?] it is only about a 
> week old, so I wouldn't think it would be the problem [but it could be a 
> lemon, I guess].  How do you check for a flaky power supply?

You may have disturbed one of the plugged in devices - expansion 
cards are very easy to do, but do all others.  

I'd go one more step, when you unplug devices.  If possible run an 
ordinary eraser over the contacts.  If not or in addition two, when 
there's a problem, I'd spray a small amount of contact cleaner and 
insert/remove a couple of times.

As to PSU testing, well I do not know of any "reasonably" priced 
testers, which would do anything useful.  A good tester would have to 
apply load to all the sections of the PSU and be left on for a while, 
looking for voltage levels and have some logic to trap departure from 
nominal.  

When I was having problems, that I suspected a PSU of, I bough a 
gizmo made by Anatec that was to test a PSU.  IT did not work at all. 
 I was too mad to even return it and spend time on the phone 
explaining.

Never assume that a new electronic product is functional.  I have 
seen enough NEW things that were bad and wasted lots of time looking 
for something else.  Once I even got two new devices that were both 
bad and almost pulled my hair out, as you certainly do not expect 
both to be bad :-))

Regards,

RichK

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