Automatically says going to sleep

How can I fix an xp machine's sleep problem?

When it's turned on, it says "going to sleep" and shuts back off. I've rebooted several times & a few times it's gotten a little farther into booting up. It's even gotten to the Windows screen, then says "going to sleep" again.

I'm stuck in the loop. Can anyone help me?

Thanks!

 

The message may be coming from the monitor itself, if the computer is dying in the boot process.

Once the video signal is lost, the monitor may give the sleep message, entirely independent of the computer, which may have already died at that stage.

Therefore it may be more a serious PC hardware problem than a sleep (standby) mode problem, by the sound of it.

 

What kind of things should I look for, or should I find a shop to fix it? I'm not genius by any means, but have taken a computer apart and replaced parts inside.

If it won't even boot up, I don't know how I could troubleshoot it.

Any suggestions?

Thanks so much for your input.

Deb