No fans turn on nor will the machine power up when I press the main button. I have tried swapping the power unit with no change and also bypassed the power switch with a screwdriver on both pins but now I'm stumped...could it be the motherboard or am I missing something? Please help!
2007-12-05 22:22:37 · 9 answers · asked by Michael G 1 in Computers & Internet ➔ Hardware ➔ Desktops
Try a bare minimum set up. Disconnect FDD, HDD and CD drive. It should still be able to beep once, display POST and open BIOS menu. If it does, one of the disconnected parts is causing the problem.
If processor cooling fan spins for just a second or two then dies, try the following:
1. Reseat cooling fan connector. If mobo fails to sense fan rpm, it automatically initiates shutdown to protect processor.
2. Check heatsink to ensure it does not touch any part of the mobo voltage regulator circuit.
3. Mobo might be grounded. Try running bare set up w/ mobo dismounted or not touching any metal part of the PC case.
2007-12-05 23:26:00 · answer #1 · answered by Karz 7 · 0⤊ 1⤋
Some boards will not even POST unless the heat sink is properly seated on the processor.
Another solution...try using washers where you insert the screws. It might be grounding on the chassis. Also check to make sure nothing is touching the board and the chassis causing a short.
2007-12-05 22:35:48 · answer #2 · answered by Walker in TX 3 · 0⤊ 1⤋
Try changing your BIOS battery on the board and cleaning the contacts on your RAM cards with a hard white eraser.
If that doesn't work, you are probably looking at a dead M.B. or processor, sorry.
2007-12-05 22:28:32 · answer #3 · answered by Anonymous · 0⤊ 0⤋
unplug any recently added device or card. Try starting it without them. If it does, return one by one while trying to power it after installing each.Make sure the jumper settings are correct- especially jumper1 which resets cmos.
2007-12-05 23:12:06 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Check that your memory modules,any pci add in cards, ie video cards,network cards , modems ect, are properly seated as well as your processor. these items tend to work there way loose due to temp. extremes inside your case. if any of them are even slightly loose your machine will have the symptoms you described. Hope this info helps you.
2007-12-05 23:04:49 · answer #5 · answered by Rusty B 1 · 1⤊ 0⤋
cmos/bios shouldn't matter on boot up. try checking the connection of your power switch to the motherboard to see if its properly connected.
2007-12-05 22:37:37 · answer #6 · answered by SailorDumb 6 · 1⤊ 0⤋
you type of ought to appreciate what your doing earlier you tinker around with hardware. in the beginning, the eco-friendly gentle on your mobo potential this is receiving potential. i cant somewhat say plenty without finding at it, yet id examine your wiring to verify you didnt unplug or snap something.
2016-09-30 23:52:52 · answer #7 · answered by Anonymous · 0⤊ 0⤋
check the wire conections to the main button perhaps?
2007-12-05 22:33:35 · answer #8 · answered by ssbv_anan 3 · 0⤊ 0⤋
cmos batt. is dead/socket is shot or board is fried?
2007-12-05 22:26:55 · answer #9 · answered by haloи†иiezwyciężony 2 · 0⤊ 1⤋