Power and CPU

Leave it on...

I have had a similar problem, sounds like it could be the mechanical power switch sticking preventing a proper start signal being sent to the power supply.

Try adjusting the cover and cleaning the mechanism so it moves freely and see if that fixes it.

If that was the case then booting should not initiate for single push followed by 3 minutes of delay.The signal response of monitor (not power) is after this delay only. For mechanical stuck frequent pushing of push button must be triggering the boot. I doubted moisture coz certain components must be heated up or the exhaust fan must pull out water content if any for operation.So i insulated the whole UPS.Still today the problem persist. Can you guess more?

You didn't mention if

a) pressing the button and leaving it will automatically turn on the computer after 2-3 minutes

or

b) it takes 2-3 minutes of repeated tries

or

c) pressing the button and waiting 2-3 minutes before you try again and are successful.

My comments are valid for c).

.......

Now you are saying that the monitor is the problem, that is quite different and assuming the computer is booting in the background (check your hard drive indication light to see if this is occuring) then it could be due to the following.

a) Updated graphics display driver preventing the monitor from working. This has happend to me due to an automatic windows update, one day the monitor worked, the next it didn't. Also happened when I updated to the latest graphics driver.

I fixed the problem by uninstalling the graphics driver and rolling back to an earlier version.

or

b) Faulty monitor. They die, it happens. Try connecting to a different display and see if that works.

or

c) You (or some automatic update or installed program) have changed a setting on the computer and the monitor now doesn't work until the windows has loaded to the point where your graphics driver software (or soimething effecting your graphics display) loads correctly. In an older system and/or large operating system 2-3 minutes for a boot to wiindows is not unheard of.

This ones trickey as it is a software compatability or setting problem and may require you to roll back or reinstall your graphics driver, perform any windows updates and restart, play with your graphics settings, check your BIOS, etc (in that order).

Let us know what you find.

When i was saying about monitor(LG LCD 17"), we know when we turn on a system, from the response of monitor and little LED from CPU. But the very response itself is after 2 to 3 minutes.

One or more of the components , deemed components , driver programs , or start up programs may be faulty or missing.

First check for viruses.

Download an optimizer from the net and check and repair your system.

I use windows XP,sp3 with KAV. I also have dual booting with linux (PCLOS). I doubt its any software problem.

if what you mean is that you press it down for 2-3 minutes before it powers off then i think its a mechanical problem. It could be that your signal response is kind off slow.

Preferrred Solutions

1) Try to open up your system unit and do some blowing with a blower or

2) Check if your power button is moist. if it is then what you can do is to do some drying or

3) Try restarting over and over. It could be because you do a lot of hibernatings...

I hope these solutions can help.

"3. Lot of hibernations" That seems to be the cause.I wish to know is it a bug already known to computer world. The problem persist.

Yes, this is a known problem in the computer world. It varies depending on the platform you are running.

You should have mentioned that this was not "powering on" but resuming from hibernation instead. There is a big difference.

When resuming from hibernation all of the previous settings and the state of the machine has to be retrieved from a cache on the disk. This is done at a speed less than optimal since all of the drivers are not loaded...the "basic" bus speed of the BIOS.

You should try disabling hibernation mode and just straight power it off when you are not using it. You could try sleep mode instead, but it's not so fast either.