Re: what to do next?

On Sep 25, 7:46 pm, w_tom <w_t...@xxxxxxx> wrote:
On Sep 25, 6:00 pm, nucleus <rose122...@xxxxxxxxx> wrote:

After all that, you still don't know even if the power supply
'system' is working. What is and is not working? If you cannot answer
that question, then accomplished is nothing. Even a new and working
power supply can appear defective in another system - and you still
have no idea what is and is not wrong. Reason for responses that are
'try this and try that' are due to no numbers. Insufficient
information means those who could really answer your questions will
remain mute.

In two minutes, with that 3.5 digit multimeter, numbers will elicit
a response that says what is *definitively good* or *definitively
bad*. Procedure is in "When your computer dies without warning....."
starting 6 Feb 2007 in the newsgroup alt.windows-xp at:
http://tinyurl.com/yvf9vh

Important are those numbers both before and when power switch is
pressed. Post them here. Don't remove or change anything to get
those numbers. You don't need an o-scope. Don't bother with core and
memory voltages. Just get those numbers in that procedure. First
establish facts - what is *definitively good*.

your input is greatly appreciated. there is an oddity, am not sure of
its
significance, but when i plug the 110v power cord into the back of the
PS, the computer thinks it is already "on" and powers up the cpu fan.
under this condition (and with no ide or floppy cables and no pci
cards
plugged in), from backprobing the MB power connector, the voltages
are:

pin dc volts
1 3.353
2 3.353
3 0
4 4.995
5 0
6 4.995
7 0
8 4.708
9 5.015
10 12.156
13 3.353
14 -11.942
15 0
16 0.003
17 0
18 0
19 0
20 NC
21 4.988
22 4.988

pressing the front power switch for 4 seconds, all voltages go to
zero, except:
9 5.012
16 4.8XX to 4.9XX fluctuating

.

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