|If you turn on your computer and you get fans, power lights, etc, but no video & no boot-up (All the lights on, but no one is home) it's most often it is a dead motherboard. |
Normally your computer will produce a beep code (certain number of beeps) depending on the issue & without a PC Speaker you wouldn't hear anything. Often these days I see computers without a PC Speaker installed.
If that's your case then your problem COULD be a dead RAM stick, Video card or CPU.
1) I first would remove any device that is not necessary to get it to power-up:
- any external devices (except your monitor)
If you can boot after doing this: You had a bad device connected, or, the power supply is defective and not producing the correct amps/voltages under full load.
If you're not comfortable working inside your computer, take her to a professional, she's really sick.
If you have some experience working inside computers and feel comfortable doing so, here is some more suggestions:
1) Remove more non-essential devices:
- any PCI/AGP expansion cards (except Video if your motherboard does not have on-board video)
- disconnect power & data cables from any drives (hard drives & CD/DVD drives)
2) Try removing all but 1 memory stick.
- try a different stick of memory
- try a different stick in another slot
This may identify a problem with the RAM or RAM slots.
3) You could try a 'known-good' power-supply.
Buying a new Motherboard most often involves replacing your CPU & RAM so that they meet the specs for the new board. Unless, of course you could find a older/used board that matches your current CPU & RAM specs.