PC Doesn't turn on with Power Button 1

[mkhera]

My PC doesn't always turn on when I turn on the power button on. It show like it's turning on and then the screen says it's going into the sleep mode. I have to plug it off from the back of the pc and then replug and it starts up fine. It started happening recently - not sure what it is related to. I have HP PC and Win 98 second edition.

Thanks for your help

 

[apex1x]

Are you sure the computer is not already on when you hit the power button?? ~Apex1x
Miller's Law:
You can't tell how deep a puddle is until you step into it.

 

[Dakana]

Most likley the computer is set to a sleep when you hit the power button. Hold it down for maybe ten seconds and see if it shuts off.

 

[apex1x]

For most ATX devices, you need to hold the power button for about 4 or 5 seconds before it shuts down. This should only be used if the machine wont shut down through windows automatically though. ~Apex1x
Miller's Law:
You can't tell how deep a puddle is until you step into it.

 

[mkhera]

Shut down is not a problem. I am able to shut down from Windows. It's only when I want to re-start that I get his problem.

 

[mainegeek]

Does this happen when you shut it off and then try to power back up a few seconds later? If you have to power it off/on from the back in order for it to power up from the front panel switch then you should replace the power supply.

 

[mkhera]

Hi Mainegeek

I think power supply might be the problem. If I shut it down and start from the front panel it starts right away otherwise if I wait then try to start it doesn't. How hard is it to change the powersupply. I have replaced PCI cards etc. but never the power supply.

Thanks

 

[gargouille]

I'm not confident your PSU is bad, but it's your money.
I prefer to think something's awry with the Power Management settings either in the BIOS or the Control Panel.