Solved Motherboard not recognising GPU

May 31, 2012 at 11:27:26
Specs: Windows 7
Until a couple of weeks ago I was quite happily running my Nvidia 9400 GT GPU with no issues. Windows update wanted to update as it does every now an then and afterwards I get a black screen?? I switched to my on-board graphics everything is fine - I try the 9400 and nothing........ it gets weirder....... couple of days later I turn the computer on again and the 9400 is working again..... does so for a few days then black screen again :(

I've been out today and bought a Nvidia GT 620 and plugged it into the motherboard but even that isn't showing up in device manager.

I'm glad I got the new card in any case although bit gutted I may not have needed it but can someone please help me sort this out its driving me insane!

Has windows update screwed my machine or am I missing something??

Before anyone tells me to plug the vga cable into the 620 and enter safe mode or bios..... I cant as the screen is black. The fn is turning on the card so it has power, my power supply is definitely man enough so please, please please help me I cant handle my on-board graphics anymore :'(


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✔ Best Answer
June 1, 2012 at 19:29:43
Always skip the Windows update for graphics cards and manually download the correct driver directly from NVidia yourself. I have heard of quite a number of times that Windows Update has chosen the wrong graphics driver. After ther next time Windows update scans your system it will stop asking about the driver since you will have the newest one.

As above, boot into Safe Mode through the onboard. Download the correct driver, uninstall all graphics drivers shown in device manager. Install the correct driver. Shut down, boot to BIOS and disable onboard graphics (or select 'use onboard graphics only if no PCIe card is present' if available on your board), Restart Normal.

You have to be a little bit crazy to keep you from going insane.



#1
May 31, 2012 at 13:38:51
List the system specs.

You know the real meaning of peace only if you have been through the war.


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#2
May 31, 2012 at 14:02:58
Your choices in video cards leaves a lot to be desired. And it's difficult to give advice when you don't list your system specs. You say the power supply is "man enough" but didn't bother to post the make/model/wattage.

"The GT 620 is a GT 530 with a 49-watt TDP and twice as many CUDA cores as the 610 -- although a meager 64-bit memory bus will put a cap on any performance gains."

http://www.engadget.com/2012/05/20/...

If you're not going to use the card, remove it from the system. If you ARE going to use the card, disable the onboard. Are you changing any BIOS settings or uninstalling/installing drivers each time you switch back & forth?


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#3
May 31, 2012 at 22:21:37
windows update could have downloaded a wrong driver for ur 9400gt, causing driver conflicts.... what i would do is roll back to a state before the windows update was applied. use the onboard to get video to ur monitor and perform a system restore to a time before the windows update. if that did not work i suggest listing ur PSU specs
like riider said both cards either 9400GT or GT 620 are bad performers if ur a gamer.
if not then stick to onboard

computers are a second home
NVIDIA GeForce
GS_Toxict51


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#4
May 31, 2012 at 23:18:28
Hi guys,

Thanks for the responses system specs below

Operating System
MS Windows 7 Enterprise 64-bit SP1
CPU
AMD Phenom X4 9650 31 °C
Agena 65nm Technology
RAM
4.0GB Dual-Channel DDR2 @ 199MHz 5-3-3-9
Motherboard
ASRock N68PV-GS (CPUSocket)
Graphics
Generic Non-PnP Monitor @ 1152x864
256MB GeForce 7050 PV / nForce 630a (ASRock)
Hard Drives
488.39GB Seagate ST3500418AS ATA Device (Unknown Interface) 37 °C
78.15GB Seagate ST380012A ATA Device (IDE) 40 °C
Optical Drives
ATAPI DVD A DH20A4H ATA Device
UNE KHYBOPUR8 SCSI CdRom Device
Audio
Realtek High Definition Audio

Ive tried to restore the system this morning but am getting the following error message.

System restore di not complete succesfully. Your system setting where not changed.

Error Details

Ssystem restore failed to replace the file(C:\windows\help\nvcpl\nv3d.chm) with its original copy from the restore point. (0x80070003)

Anymore advice please people???


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#5
June 1, 2012 at 09:48:38
"ASRock N68PV-GS"

Here's the board info & manual:

N68PV-GS specs

">N68PV-GS manual

Before installing a discrete graphics card, you should uninstall the drivers for the onboard graphics, then enter the BIOS & change the "Share Memory" setting to AUTO & change the "Primary Graphics Adapter" setting to PCI-Express.

"4.0GB Dual-Channel DDR2 @ 199MHz 5-3-3-9"

Is 199MHz a mistake? With a Phenom CPU, you should be running DDR2-1066 @ 533MHz. At the very least, DDR2-800 @ 400MHz. The RAM speed isn't the cause of your graphics problem, but it's definitely hurting system performance.


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#6
June 1, 2012 at 19:29:43
✔ Best Answer
Always skip the Windows update for graphics cards and manually download the correct driver directly from NVidia yourself. I have heard of quite a number of times that Windows Update has chosen the wrong graphics driver. After ther next time Windows update scans your system it will stop asking about the driver since you will have the newest one.

As above, boot into Safe Mode through the onboard. Download the correct driver, uninstall all graphics drivers shown in device manager. Install the correct driver. Shut down, boot to BIOS and disable onboard graphics (or select 'use onboard graphics only if no PCIe card is present' if available on your board), Restart Normal.

You have to be a little bit crazy to keep you from going insane.


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