Video card not detected

November 10, 2010 at 08:03:24
Specs: Windows XP, Intel Dual Core E2180/2GB
Motherboard: ASUS P5B-MX/WiFi-AP (Socket 775)
Onboard video: Intel(R) 946GZ Express Chipset Family (I'm using this currently)
Video card: MSI, NVIDIA GeForce 7900 GTX (not 100 % sure since I know only the model of this card - P348, card itself says no more. If you want an image - it looks like this)
Drivers installed: chipset driver, audio driver, VGA driver (for onboard graphics)
OS: Windows XP SP3 32-bit

What I did/tried:
1. Uninstalled onboard graphics drivers
2. Installed the video card into PCI-E x16 slot.
3. Rebooted, no video card detected.
4. I also tried modifying several BIOS settings to disable onboard graphics, but no luck. It either loads as usual (no card detected), or the monitor just goes black and nothing happens (had to reinsert the CMOS battery).
5. The video card seems to be seated properly and the fan is working.
6. There's no jumper (on the motherboard) to disable on-board graphics (learned this from the manual)
7. The card only has 2 DVI openings, whereas my monitor has VGA connector. So I have to use a PCI-DVI adapter to connect the monitor to video card. Even if I do so, the monitor won't display nothing. (Right now the monitor is connected to the standard VGA port on the motherboard)

My best guess is that something is wrong with BIOS settings. They dont allow me to use my new video card somehow.

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November 10, 2010 at 08:39:35
7900gtx isn't new, why did buy a old card? Even the weak hd 4650 ddr3 outpeform 7900gtx. They are plenty of new (better) graphics card available. When the card is installed can u hear window start sound? My advice to return that card and choose good gaming card like hd 5670 or 9600/9800gt.

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November 10, 2010 at 23:13:18
It was a present to me from by brother. I'm short on money so I cant afford to buy new video card :(
When the card is installed and the monitor is plugged into it, windows xp can start.

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November 11, 2010 at 00:42:31
You actually get the error message no video card detected? Do you get the post/ bios screen? Can you get into the bios with the card installed and connected to the monitor or is all you get the error message?

I would lean towards a bad adapter but if your getting an error message on the screen then that rules that out in my opinion.


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Related Solutions

November 11, 2010 at 01:46:56
Hd 4670 $60 us ( Both cards listed sold under $100 us.

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November 13, 2010 at 04:05:00
When the card is installed and connected to the monitor:
1. The screen is just black and it's just black. I can't even see BIOS.
2.My Windows XP loads up and I can hear the standard intro sound as it starts.

The adapter (I mean the VGA-DVI adapter) seems to be fine, because it's working on another comp.

What can be the problem? Here's what comes to mind:
1. Bad video card.
2. Bad PCI-E slot.
3. In BIOS, I haven't found how to switch the graphics display to PCI-Express. Could that be because of Bad PCI-E slot?
4. What else?..

PS. I'm extremely short on money and I cant afford to buy a new card whatsoever.

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November 13, 2010 at 09:50:38
Bad card is possible. Was it used? Can you put it in another system to try it?


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November 13, 2010 at 21:30:42
No, there's no other system to test this video card... Some months ago this card was operating in my brother's computer.

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November 16, 2010 at 06:08:00
Yay, solved it!
The problem was neither a bad card nor a bad PCI-E slot.

As I suspected, the problem originated in BIOS, i.e. I had to modify some of its settings (but which? - this question took me weeks to solve) to make the system detect the card.

So, the BIOS didnt "see" the video card because onboard graphics was enabled.
There was an option to change the default display device, but it had weird options which confused me.
The options were IGD (Internal Graphics Device), PCI and PEG.
My best guess before today was using PCI option (because the card was in the PCI-E slot), obviously not IGD and not PEG ( is PEG?)

But then I thought, what if PEG is just a weird abbreviation for a normal card? So I used it and it worked! YAY!
Some time later I reliased that PEG stands for PCI Express Graphics :)


Now I can play Starcraft 2, GTA IV etc
Happy! :)

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December 30, 2010 at 06:20:22
Glad you got it sorted out :)

I'm currently in exactly the same position, my PCI-E graphics card was working previously but not now. I've had it for all of 6 months.

The fan is always running but whichever bios setting (VGA, PCI, PEG) I change I am still left with a blank screen (monitor in sleep mode). As far as I am aware, if the card is detected at all you will still get some kind of preliminary image on your monitor. Is this correct?

My drivers are all up to date but the card is never detected by windows 7 either. Monitor works fine with on board graphics so it's just something not happening between the bios, the card and windows 7.

I am also very poor and don't have anywhere else to test this. Any thoughts on this would be much appreciated.

I just wished you hadn't fixed it now morganxl, we might have got to the bottom of my problem too haha :)

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