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My son's pc was working fine until the other day. But When he tried last Friday, the monitor seems to start with the green light, but within a few seconds it turns amber & won't come back on. I've tried to hook it up to another good working monitor & even to my KVM switch but each time I still get the same results, the amber light.
Can anyone offer any suggestions.? Please & thank you.
Maxx.

It is the video card in the computer that is the problem. The amber light indicates that the VDU is not getting a video signal from the computer.
First thing to try is to remove the lid of the computer and try re-seating the video card - they sometimes work loose, especially if the computer has been moved.
Check the cables are properly installed and check around where the cable plugs into the computer. It is often under strain at this point and can sometimes get frayed. Try manipulating the cable and see what happens. If possible try a different cable.
If the cable is defective and it is hard-wired into the VDU it may not be cost effective to have it replaced.
If that fails and new video card may be in order.
Stuart

... Just to further clarify. If it is inbuilt video then you can put in an add-on card. You first have to disable the onboard video and disable any shared VGA memory (from BIOS).
DerekW

... there are a variety of causes for no video signal - sometimes it even is the vidcard
I'm not one of those who think Bill Gates is the devil. I simply suspect that if Microsoft ever met up with the devil, it wouldn't need an interpreter

"You first have to disable the onboard video and disable any shared VGA memory (from BIOS)."
I'd love to see how anyone is going to make changes in bios when there is NO DISPLAY to begin with.
As jboy said lots of things can cause loss of display.
I have had systems exhibit this lack of display due to :
Failed powersupply
Failed CPU
Faulty motherboard
Faulty harddrive
Faulty optic drive
Loose/dislodged graphics card
Faulty PCI network card
Failed heatsink fan
Even a failed graphics card, although in that case I did get bios error beeps that confirmed the problem.I used to have a signature but it disappeared and I just couldn't be bothered writing another so please feel free to ingore this.

Re #19.
Quote
"You first have to disable the onboard video and disable any shared VGA memory (from BIOS)."
I'd love to see how anyone is going to make changes in bios when there is NO DISPLAY to begin with.Unquote
This is because we lack information. Is it possible for instance to get the display to function in just BIOS (for example) or is it completely defunct in any mode? In which case then sure, we can be certain this is a hardware problem.
Anyhow, if the purpose of this forum is to demonstrate relative cleverness then I would have left years ago.
DerekW

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