why wont my pc boot ?

Question

i shut off my computer a day ago and when i went to turn it back on it will not boot ,it will not bring up the bios ,all it will do is run the peripherals and my fans but that is it i have tryed replacing the motherboard battery and still nothing will come on at all except what i mentioned above , does any one have any suggetions ?

Answer 1

Does your screen register the fact that your computer has turned on? (ex. a blinking white line on your screen. Any change whatsoever?). You can try a few things. First, disconnect all your peripherals (open your computer and disconnect your hard drives, your cd rom drives, floppy, etc) and boot it up. If the bios starts up, then it's something with your hardware. Another thing you can do, is look at your motherboard. Find the name and type of your motherboard. Look up the specs of the board online and find the BIOS reset jumper settings. Doing that should get you back on the road to function.

Answer 2

Unplug all the devices, remove all the cards including the video card and memory. Boot the PC. If you get a error code (usually some kind of beeping, then the processor is work.
Power down and add the memory and keyboard and boot again. See if the lights flash on the keyboard. If so, the memory is good.
Add the video card and boot again, see if you get display.
Continue to add devices and cards one by one until you find what is failing.
Then you will know what needs to be replaced or repaired.

Answer 3

Replace motherboard.

Answer 4

I know theres a red switch behind the computer, switch it on and see what happens, I know when i switch it off onlymy cpu will come on and nothing else, the mointer, the mouse, ect will not come on

Answer 5

Do you hear "a beep" sound ?
If yes, please try release the memory module and switch to other slot.
If still hear "a beep" sound, I think your memory broken.