Pc no video output. not graphics card.?

Hi merry xmas.

my brothers acer pc has no video output via vga or hdmi (the machine turns on and all the correct lights are on/ fans spinning) I have taken the graphics card out of his pc and tried it in my pc (graphics card is fine) works fine in my pc.

I have tried another pc on his monitor and that works fine so i have ruled out:-

1/ the graphics card.

2/the monitor

3 the monitor vga cable.



I think his motherboard has gone?? but am no expert, any advice would be great.

thanks|||Try to install a different video card on his computer, then install the drivers for the card you want to install, then install the card you want to install.|||you may be correct, but a simple question do you have any speakers connected? You say the lights are all on does the hard drive attempt to run (so you would see the usual HD activity light flashing). If so then having speakers connected would give the Windows sound when the OS loads up giving a better indication if the mainboard is allowing the hardware to boot. Obviously sound would suggest the board is OK, the issue would then still most likely be VGA related, if the card works then perhaps it is the slot that has failed, I suppose you could still argue that the board has failed.|||Ok I like a challenge



If the card is working in your machine put it back in to your brothers. When you turn on the machine do you see the bios screen?



If no then your assumption could be right and the MB could be buggered.

If yes then it could be something as simple as your brother has set the screen resolution too high and thats why your not getting a display.



If you can see the bios, press F8 (usually) and boot the PC in to safe mode.

Once in safe mode adjust the screen resolution to 1024 * 768. Accept the settings and restart the machine. If this works Brill.



If this does not work, does the pc have on board graphics. Plug the monitor in to that and see if you get a display?





If you dont see the bios when you boot up, then your right to think your Motherboard is gone.



Good luck|||if he has a onboard video card meaning a extra vga port on the back of the pc if don't leave the graphic card in, reset the cmos jumper

moving the jumper from 1-2 to 2-3 for a couple of minutes and back again another way is remove the cmos battery looks like a watch battery for a couple of minutes reinstall reseeting the bios to default settings and restart if still no display change the motherboard or try a pci graphic card|||THINK DRIVERS AND MOBO FIRMWARE FRM MFG OF MOBO!