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Windows 7: Nvidia 8600 GT not detected (Motherboard: nForce 630i)

22 Dec 2011   #11

win 7 ultimate32bit, Win8.1pro wmc 32bit

nitebullet, It can only be a bios setting or a faulty gfx card, can you borrow a known working one from a friend to try ? :)

My System SpecsSystem Spec
22 Dec 2011   #12

Windows 7 Ultimate x64

same story. I've put a 9500gt and plugged the vga cable to the gfx card. I could hear the fan spinning but the screen is giving me a blank screen saying ''no signal input''..same story with the 8600gt..the monitor is up again if i plug it ito the onboard

and on bios there's no option to turn the onboard graphics card off..(couldnt find anything on the manuel either)

does this have anything to do with it?'':allocate IRQ to PCI VGA =>set to YES''
My System SpecsSystem Spec
22 Dec 2011   #13

Windows 7 Professional SP1 64-bit

I guess this seems like a simple one, but did you make sure the drivers for your video card were installed? Use the drop down menus at the link below to select your card and get the most up to date drivers.

Drivers - Download NVIDIA Drivers
My System SpecsSystem Spec

22 Dec 2011   #14

Windows 7 Ultimate x64

when i try to uninstall the display driver, it will install the drivers for onboard on its own after doing a restart
My System SpecsSystem Spec
22 Dec 2011   #15
Sub Styler

Windows 7 Ultimate x64

Can you be more specific with your motherboard? The 630i/7100 has a Geforce 7100 GPU on board, you should be able to disable this in the BIOS, if not make sure VGA INIT FIRST is set to PCI-E not PCI/on board. Also BEFORE installing the graphics driver, install the 630i chipset driver (available from Nvidia or the Manufacturer).
You should also have an option to adjust the shared video memory, set this to the minimum or disabled if available.

Also where i refer to PCI-E above, I may of course be talking about AGP, as the 8 series was of last of the AGP breed from Nvidia, I believe the 8800GTX was the most powerful of which.

Another point is does the card have a requirement for supplementary power from the PSU (6pin) and if so, has it been provided.

EDIT: That option can be either enabled or disabled, this will not affect the plug-in GPU but will determine whether the onboard VGA will be assigned an Interrupt Request channel or not. You wont do any harm enabling and disabling this option for test purposes.
My System SpecsSystem Spec
22 Jan 2015   #16

Win 7 Home Premium 32/64

Had the exact same problem and fixed it.
Shut down, Remove the card, boot up, shut down, put the card back in. The BIOS then detects a "new" card and automatically disables the onboard graphics.
My System SpecsSystem Spec

 Nvidia 8600 GT not detected (Motherboard: nForce 630i)

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