Used to SLEEP properly but now won't wake up

[Ashton Crusher]

For several months my PC was going into sleep mode and would wake up
properly when I pushed the power button. Then yesterday it went to
sleep and it refused to wake up. I thought it was the PS, it wasn't.
I put in a new PS and it still wouldn't wake. Then thought it was the
motherboard. I put in a new MB (identical to the old one) but that
didn't fix it. To get it to wake up I have to turn off the main power
switch on the back of the PS, then push the power button, which
briefly flashes the lights and then they go dark. Then I turn the main
power switch back on and press the power button and it starts up as a
cold boot.

I don't recall changing anything but I think, can't be sure, that
there may have been some windows updates that got installed about the
time this started.

 

[Guest]

Have you tried changing the advanced settings in Power Options?

 

[Drew]

Ashton..Just a thought..My Vista system has always gone to sleep with no
problems EXCEPT whenever I do a driver update or for that fact even
changing the wallpaper will cause the drives to not spin down and the
monitor sometimes does and sometimes doesn't sleep....I have gotten used to
just going into power options and resetting my choices right back to the
same and all is fine...System goes to sleep right on time and wakes up with
the flick of the mouse....Seriously this is the only minor glitch or
complaint I have had....irritating but as of yet I have not found the
cure....If you do please post back !!.........Just my 3 cents.........Drew

Intel 2.66 core2 processor
Intel D975XBX2 motherboard
Twin 160gig Seagate Barracuda's
Nvidia 7900 256mg video card
4 gigs of ddr800 Kingston HyperX
running Vista Business since Feb 1st with no problems

 

[Ashton Crusher]

It wasn't problem making it go to sleep. The problem was waking it
up. I had to do a non-standard power on sequence to get it to wake
and at that I was forcing it to cold boot instead of actually waking
up. Defeats the purpose of sleep. It was such a hassle getting it to
reboot I'm afraid to let it go to sleep now. After reading some of
the problems with MS needing to get the hardware vendors to write
their drivers properly I'm not sure it's worth letting it sleep
anyway.