Dell Dimension 5000

[#1]

I have a Dell Dimension 5000. It has been operating well un til today. When the pc is turned on nothing happens, except for a yellow flashing light at the front of the unit. Can anyone advise as to what the problem may be.

[#2]

No beeps?

[#3]

Not as such.

[#4]

Try turning it off and then, instead of just pushing the on button, keep the on button depressed until it fires up. It can take up to a minute but I would guess it would come on after about 10 seconds.

[#5]

It started, thanks very much.

[#6]

You're welcome

[#7]

Thanks once again geewizz. Do you have any idea  what the problem is?

[#8]

I'm afraid not. I'm an amateur fixer. I just happen to know a few tricks like that. I find it's more important to know how to fix something than it is to know why it wasn't working in the first place.
I have a Packard Bell which was fixed the same way. It does it from time to time, usually after a power supply interruption. I found the solution by trial and error.

[#9]

@iang
Do you know which of the four lights it was which was flashing?
When you turn on the Dell, 4 lights should flash and turn green if everything is fine. In your case one of them was lit and this should tell us what the problem was.
Jeff

[#10]

On the computer there is only one light above the Dell symbol.

[#11]

The power light?
The four diagnostic lights are in the same panel as your headphone/microphone/usb
If the power light was flashing that can mean your computer was on standby.

[#12]

Quote from: minkey

The power light? The four diagnostic lights are in the same panel as your headphone/microphone/usb

Not always most older types of dells have the four lights on the rear of the case labeled abcd
Mine are now blue now on the front on the same panel you said. 
Blues great for me because I am red green colour blind so now I know were to look for the error on my new Dell
puddy