p4p800se Power managment

  • Thread starter Thread starter Walmsley's
  • Start date Start date
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Walmsley's

Hi

I've got a new pc with p4p800se mo/bo. I'm running XP home and when I shut
down all appears fine. However, sometimes when I go to power on, the power
is there, but it sort of sits in standby. The power light is on, and I hear
the H/D fire up etc. I have to press re-set to startup properly.

I notice in the bios that APM is on. Does it need to be? I have a sleep
function on my Keyboard, but I'll never use it. When I goto shutdown, I just
want it to shut-down (call me fussy!)

My monitor goes into standby mode when I power down, and when I power up
(and it's working) the monitor fires up with it. When the PC is having a
"SLEEP/STANDBY" moment though, the monitor stays in standby.

Any advice appreciated.

Nik.
 
"Walmsley's" said:
Hi

I've got a new pc with p4p800se mo/bo. I'm running XP home and when I shut
down all appears fine. However, sometimes when I go to power on, the power
is there, but it sort of sits in standby. The power light is on, and I hear
the H/D fire up etc. I have to press re-set to startup properly.

I notice in the bios that APM is on. Does it need to be? I have a sleep
function on my Keyboard, but I'll never use it. When I goto shutdown, I just
want it to shut-down (call me fussy!)

My monitor goes into standby mode when I power down, and when I power up
(and it's working) the monitor fires up with it. When the PC is having a
"SLEEP/STANDBY" moment though, the monitor stays in standby.

Any advice appreciated.

Nik.
Click to expand...

I wonder if the PSU has enough +5VSB. I think the manual mentions
at least 1 amp on +5VSB, and you can check the label on the PSU,
to see what it is capable of. If you've moved the KBPWR or USBPWxx
jumpers, to run from +5VSB, that increases the consumption of
+5VSB. Running them from +5VSB is only needed for wakeup functions
from sleep. (All this assumes though, that you might want to use the
sleep function, as opposed to complete shutdown, which you've
already stated you don't want.)

Try disabling APM and see first of all, whether Windows is going to
be happy. I don't know if this disables ACPI or not, and might
conflict with the HAL you selected during Windows install. You also
will end up using the switch on the back of the computer, because
I think APM includes the ability to shutdown from the Windows Start
menu. I think I had to do that on one of my computers that had all
power management disabled. (You might see the "Safe to Shut down"
type screen. Maybe pressing the button on the front for four seconds
would work, or you might have to reach around and use the switch
on the back of the computer. Certainly the second option is
easier on your power bill.)

If you want to fix things up later, look for "dumppo.exe". While
I don't think it will do a HAL change for you, if you have installed
with an ACPI HAL, dumppo can fix it so it works again, to give
sleep or hibernate capability.

Just a guess,
Paul
 
Thanks for that Paul. I've disabled APM and all seemed fine. It seems as
though If I power down for a while (1-10 minutes+) it's OK, but I just tried
it again, and I needed a reset. Weird!

Ahh well, the rest of your advice (ACPI?) is a bit over my head, I don't
ever want to bother rummaging around the back of the back of the PC for the
power button! It'll go back to the manufacturer before I do that!

Thanks for your time.

Nik.
 
"Walmsley's" said:
Thanks for that Paul. I've disabled APM and all seemed fine. It seems as
though If I power down for a while (1-10 minutes+) it's OK, but I just tried
it again, and I needed a reset. Weird!

Ahh well, the rest of your advice (ACPI?) is a bit over my head, I don't
ever want to bother rummaging around the back of the back of the PC for the
power button! It'll go back to the manufacturer before I do that!

Thanks for your time.

Nik.
Click to expand...

I have another suggestion for you.

Do your normal shutoff. Disconnect the monitor VGA cable.
Leave the computer for a while. Come back to the computer and
push the button. If it starts, plug the VGA back in.
Then turn on the monitor.

If the computer restarts reliably with the monitor disconnected,
this COULD be the leakage thing again. There was another
motherboard, where some current seemed to leak down the
monitor cable, and it prevents the reset circuit from
detecting the original loss of power or something. I'm
not aware of any resolution for that problem.

If pulling the monitor doesn't allow reliable startup, you
might consider an RMA of the board under warranty.

Paul
 
Great, thanks, I'll try it....


Paul said:
I have another suggestion for you.

Do your normal shutoff. Disconnect the monitor VGA cable.
Leave the computer for a while. Come back to the computer and
push the button. If it starts, plug the VGA back in.
Then turn on the monitor.

If the computer restarts reliably with the monitor disconnected,
this COULD be the leakage thing again. There was another
motherboard, where some current seemed to leak down the
monitor cable, and it prevents the reset circuit from
detecting the original loss of power or something. I'm
not aware of any resolution for that problem.

If pulling the monitor doesn't allow reliable startup, you
might consider an RMA of the board under warranty.

Paul
Click to expand...
 
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