[Lowfer] Deep Sleep PC

[Peter Barick]

Hi Fellas,
 
I've tried all tips to date. but John's on the PS signal was untried to fore and I have something to say about it.
 
The pc is a 400MHZ box with a ATXPWR PS. It provides 3 conns. to the MB. The big one is 20-pin. Only 3 pins are new to me, this is from the MB manual:
1.  PS_ON#  <-- shows no voltage (unknown what the # means, not a footnote)
2.  PWR_OK  (did not probe)
3.  +5VSB
 
Therefor, if PS_ON# is the signaling line, I found no DC voltage.
 
-------------------

>>> John Andrews <w1tag at charter.net> 02/19/14 10:02 AM >>>
Peter,

Dead battery on the PC? Also, I've seen power supplies that seem to produce all the voltages, but are not signaling the PC board that they are up and running. 

John, W1TAG
--------------------------------


> On Feb 19, 2014, at 10:53 AM, "Peter Barick" <pbarick at niu.edu> wrote:
> 
> Hi Fellas, I've been out of LowFERing for a while . . .
> 
> Well, so I thought I'd start things up a bit but hit a pc wall; The XP box would not come up -- nothing.
> 
> By nothing I mean no output to the monitor or sign that it has booted. (I'm a retired IT guy and used to install business configurations.)
> 
> Did many substitutions: Monitor to laptop, works. PS puts out 12, 5, 3.3V. Changed pci video card, reset many plugins, including RAM.
> 
> Removed the DSL and game cards
> 
> CD and floppy drives react to opening. Floppy boot disk, no reaction on boot.
> 
> Substituted the HD, nothing.
> 
> The one reaction: briefly the lights on the KB flash as the HD does its usual initial buzz.
> 
> 
> Ideas ? . . . offers? ~)