How to set AGP as primary video source?

May 9, 2009 at 17:27:22
Specs: Vista, 1.67, 2 gig

I have a Biostar mobo U8668-d Ver 7.6 and the onboard video card does not send any power to the monitor.

I installed an AGP card but of course it won't send the signal to the monitor because the onboard video card is enabled.

How do I set the AGP slot to be the primary source of video when I cannot enter the bios?

Thanks in advance.

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May 9, 2009 at 17:37:31
If it does not automatically revert to the AGP card then there is no way you can enter bios to make the necessary change.

Time to replace the motherboard. ( You have tested the monitor on a separate system to be certain that's not your problem?)

Goin' Fishin' (Some day)

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May 10, 2009 at 05:57:16
You should be able to see the POST screen from either the onboard or the AGP card, even when both are installed. The fact that neither works means that you have a serious problem with the motheboard or CPU. Are you getting any beeps?

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May 10, 2009 at 06:44:13
I don't hear any beeps at all. The keyboard lights flash once but that's about it then the keyboard lights turn off... I installed another power supply but nothing still.

I'm thinking that the motherboard has come to an end...

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May 10, 2009 at 07:22:35
You have some troubleshooting to do. Don't just randomly replace parts. The problem is NOT the video card. Like we said above, it may be the board or the CPU, but it could also be the power supply.

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