Computer not starting, how do I figure out which component is broken?

[gakirin]

Not sure if this is the right forum for this, but you guys seem to be very well informed so I figured I'd ask.

So my computer won't start, no boops, no whirrs, nada. I did the paperclip test and my power supply is operational (yay).

My next guess was that my power button that wasn't working. Tried shorting the on switch on the front panel of the motherboard. Nothing happened. But the strange thing is, on my power button connector, there's no cord wired to the 'off' pin as listed by the motherboard manual...

If it's after the power supply, but before the power switch, does it have to be the motherboard? Be gentle, I know precious little about computers. Thanks for the help!

 

[reedo_43]

what is the main board? Usually it says pwr sw or something to that effect on the mb header. There needs to be a cord from your power switch to the mb header. Shorting with screw driver should power up the board as long as you have the right spot. Good luck!

 

[avarice]

This will be itterative if the first step works...Just to set your expectations. The trick is to limit the potential failures and to take small steps to the solution.


1) Ensure all connectors are solidly attached - items such as the power switch, the MB power and such.

2) Unplug power and remove all memory and cards (Keeping Drive cables connected should be fine.) Assuming it takes at least one minute to remove cards and memory - re-connect the power and see if any lights come on with the board. Most modern MBs have an LED to indicate that power is on - even if it is not running. You may want to research your MB to ensure it has this feature.

If the feature exists - and the light does not turn on. Remove power - then remove power cables to the MB and re-seat them. Connect power - and retest.

If nothing occurs - you likely have a toasted MB. If you get some action when you power on - your board should be good.

Assuming the board is good but something else is bad - re-connect one item at a time - starting with video, then each stick of memory, then any other cards you had. Once the error occurs - you have found your faulty peice.