A friend's computer turned off one night when they were sleeping and would not come back on in the morning. I looked at it and saw it wasn't getting any power so I changed the powersupply. Everything seemed to get power at that point (all the fans were working and the light on the motherboard was lit up). Unfortunately, when I plugged in the monitor it said it was not recieving a signal. I checked the monitor and video card on a different computer and both work correctly. I reset bios using the jumpers and that had no effect. There is also an on board video card which is also not working (although I'm not sure if you have to make some changes within the computer to make it read the on board video card). What could the problem be? I figure it's most likely the mother board or processor. Is there anyway to test this? (btw, I don't hear any beeps when computer starts).
2007-01-31 16:15:22 · 6 answers · asked by askewmew 2 in Computers & Internet ➔ Hardware ➔ Desktops
Probably a good bet the m-board is done. Save the good parts, and go from there.
2007-01-31 16:18:25 · answer #1 · answered by Joker 2 · 0⤊ 0⤋
the biggest thing everyone misses, is if the system has an ethernet card that went bad, it will cause all these problems even after the power supply is changed. if you have a ethernet card or any other pci cards installed, remove them and try to boot the system. if you have onboard video that you are now trying to use, pull out the aftermarket video card and the bios will detect the onboard on its own without having to change the bio settings. clearing the cmos will also give you the same thing which resets the bios back to default.
2007-01-31 19:01:52 · answer #2 · answered by gas_indycar 5 · 0⤊ 0⤋
It has to be your motherboard. I had a similar problem with one of the pc's here at work (gateway pcs) it would turn on and everything but there was no video. I disconnected all the cables except the power and P4(small square cable connector) and still no video, I swapped processor and still nothing. swapped motherboards and problem was solved. good thing we have lots of them. tell your friend to get another MLB (main logic board) or MB however you want to call it.
2007-01-31 16:33:37 · answer #3 · answered by mash14 3 · 0⤊ 0⤋
Yep, bet the motherboard is fried. Unfortunately, when a PS goes, it can spike the MB, frying the on-board ps and typically takes out the processor and IO chipset. Had that happen to a FIC motherboard.
2007-01-31 16:20:43 · answer #4 · answered by Henry A 4 · 0⤊ 0⤋
Its probably the motherboard but one of the PCI boards or memory may have shorted out. Try removing all PCI boards and see it it will boot. If not, try removing memory modules one at a time and try booting. You can also disconnect the CD or DVD drive which occasionally will short, and any non-primary hard drives. Good luck!.
2007-01-31 16:23:10 · answer #5 · answered by Michael da Man 6 · 0⤊ 0⤋
As a matter of fact, when you add a video card and want to use the integrated video at a later time, you sometimes have to renable it in the bios... Anyway something similar happened to me and turned it, it was my motherboard. Take a look at the capacitors (they look like batteries http://www.hardware-one.com/reviews/msi6309/images/capacitor.jpg
feel the top of it, if it's got a bump or they look inflated, then their dead and you need a new motherboard. that's what happened to me.
2007-01-31 16:34:48 · answer #6 · answered by raisin85 2 · 0⤊ 0⤋