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I'm trying to use an antiquated monitor with my gigabyte motherboard and AMD Radeon HD 7850 graphics card.
Unfortunately my BIOS won't recognize VGA while the video card is powered on, so right now the card is receiving no power. Can someone explain how I allow VGA to run with my graphics card powered up?
I have Z77M-D3H Gigabyte motherboard.
Unknown
Posted 2012-10-13T01:33:30.703
Reputation: 123
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A lot of older motherboards , especially those up to the core 2 era share PCI-e lanes between internal graphics and the x16 pci port. As such it is not possible to use the internal graphics adaptor and the external graphics adaptor at once.
However the sole DVI port is likely a DVI-I port and will output vga with a cheap passive DVI to VGA adaptor. You could use this on your older monitor.
Edit: In this case though, thats obviously not the problem. However now that I know what the motherboard is, finding a solution becomes trivial.
From the manual, page 48, you need to go to the peripherals option in your bios and pick the appropriate setting from the options -In this case IGFX
Init Display First
Specifes the frst initiation of the monitor display from the installed PCI graphics card, PCI Express graphics
card, or the onboard graphics.
Auto Lets BIOS automatically configure this setting. (Default)
IGFX Sets the onboard graphics as the first display.
PEG Sets the PCI Express graphics card on the PCIEX16 slot as the first display.
PCI Sets the graphics card on the PCI slot as the first display.
Journeyman Geek
Posted 2012-10-13T01:33:30.703
Reputation: 119 122
Considering I just bought the motherboard yesterday, I don't think it's old. – Unknown – 2012-10-13T01:56:49.843
You may want to update your question with the specifics of your motherboard then. Chances are the answer to your question is in the manual, so.. without that info, its just a matter of guesswork. Does Bios output after initial bootup with the video card? – Journeyman Geek – 2012-10-13T01:59:42.173
Ok I just have updated it. – Unknown – 2012-10-13T02:03:48.667
@BernieMacinflor This board is listed as discontinued for some reason, even though it was only released a few months ago. Anyway, your AMD card came with a DVI-VGA adapter; just use it and you should be fine. – Michael Hampton – 2012-10-13T03:18:51.047
hmm. Can you go into your bios and see if there's an option to set your default video device? – Journeyman Geek – 2012-10-13T03:41:45.307