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- Power Up Question
January 18, 2007, 9:54 am
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If I tell Windows to turn off my pc, it does. When I turn the pc on, there
is never a problem. However, if I turn the computer off in Windows, then use
the switch on the back of the PC, when we are away for a couple of days, I
have a devil of a time getting the PC to boot. The system doesn't post or do
anything it sits there with a black screen not going anywhere. I have to
rock the power switch on and off a couple of times quickly then power up the
pc with the on button on the front of the tower. The system will then run
perfectly fine with no issues ever, just as long as I don't totally remove
power source from the computer.
Could this be the switch itself or something more ominous? Thanks.
Re: Power Up Question
You're not supposed to turn it off that way. Ideally it
would work when you do, but it seems the immediate solution
is simply not to do that.
Might be a PSU with insufficient capacity or that is
failing. You didn't describe the hardware, makes models
wattage etc. of all major components.
Might be you have too much connected to PS2 or USB ports
that are jumpered to use 5VSB (consult motherboard manual
for the jumpers to check) instead of 5V.
Might be a glitch in your motherboard design and it will
take an AC power cycle to get the logic reset, in which case
I suggest not unplugging / switching off as mentioned
It is not likely to be a problem with the switch itself.
Re: Power Up Question
My thanks to all who responded with their suggestions.
I never gave a thought to the fact that you aren't supposed to turn a PC off
that way when we're gone for extended periods. I have a 400w power supply
that runs a P4-TE mobo, Northwood P4 2.2, Nvidia 6800, 1 gb ram, 2 HDD's,
2 optical drives, floppy, SB Audigy, Samsung 244T monitor, 2 Printers-1
parallel; one USB, a USB Laser Mouse and keyboard and a Maxtor One Touch.
The Maxtor and the printers aren't left on, so they don't draw on the system
when it boots up. That's a lot of stuff....I don't know the wattage of all
this hardware right off hand.
We measured 3, 5, 12v with a voltmeter previously during bootup and those
measurements were all okay.
We had a bad ice storm here and the PC was off at the time we lost our
power, so I switched the power switch off on the back of tower because of
multiple power surges while our area of the electrical grid was going back
online. I though it would be safer. Fortunately, I haven't had to turn the
tower off but 3 or 4 times last year, but each time it was an issue.
Again thanks to all that responded. Maybe, I'll ask the hub for a nice
romantic birthday gift, like a UPS.