PC can't detect my graphics card

XenonRide · Mar 8, 2014

Hello,

Okay so, I recently purchased the NZXT Phantom 820, which proves to be a wonderful case; although when I try and boot up my PC using the new case I can see the screen fine, but the resolution of the screen seems.. Stretched, windows is also running basic mode, the computer is running super slow, I was told that this is because the PC is running using onboard graphics, this would mean that the Graphics card is not being found by the computer. I wen't into the dxdiag, clicked displays and it said this.

I'm using the Asus - GeForce GTX 650 Graphics card, the fan on it is running and it's plugged in correctly in my view.

Everything was running fine on the old case, and I doubt it's a new case thats causing the problem, probably something that went wrong during the build.

Does anyone know a good solution to this problem?

Any help is greatly appreciated.

millwright · Mar 8, 2014

Where is the monitor plugged in.

If it is plugged into your GTX 650, then you can't be seeing the onboard.
That is a different plug.

lantrich · Mar 8, 2014

Just some basics. If you plugged in your monitor to the on-board graphics it will not see your GTX 650. If you didn't load the drivers for the on-board graphics that came with the motherboard this could be what you are seeing. When I set up a computer the first time I use the onboard graphics so I can see the bios on the monitor. I then go to advanced properties to change to the PCIe slot. I save the settings and turn off the computer. I move the video cable to my video card and start up the computer. Windows will either load the drivers for the card it can find or it will comeback as unknown. I can then download the latest drivers and run the software. It will detect the video card and everything will be great. Hope this helps.

XenonRide · Mar 8, 2014

lantrich :

Just some basics. If you plugged in your monitor to the on-board graphics it will not see your GTX 650. If you didn't load the drivers for the on-board graphics that came with the motherboard this could be what you are seeing. When I set up a computer the first time I use the onboard graphics so I can see the bios on the monitor. I then go to advanced properties to change to the PCIe slot. I save the settings and turn off the computer. I move the video cable to my video card and start up the computer. Windows will either load the drivers for the card it can find or it will comeback as unknown. I can then download the latest drivers and run the software. It will detect the video card and everything will be great. Hope this helps.

Okay, I'll give that a try and get back to you.

XenonRide · Mar 8, 2014

Okay so, I've always had my hdmi plugged into my GTX 650, but the computer won't pick it up. I also don't see why I'd have to play with to the BIOS if all I did was change the case.

millwright · Mar 8, 2014

I agree, if all you did was change the case, and everything is plugged into the same place, it should have boot as normal, and the GTX 650 should running as normal.

But it doesn't, so something has changed.

If you go into display setting, what dose it have display resolution?

Dose it just have basic like 600X800, or are the others there also?

XenonRide · Mar 8, 2014

millwright :

The max resolution is 1280x1024, which is different to my display

millwright · Mar 8, 2014

I know it says that above, but it also says 1 Hz. It should be more like 60Hz
Did you look in display setting, and are there other resolutions?

Is the screen just blown up with the CTRL and the mouse wheel.

Sorry for the seemingly stupid questions, but I can't see what you see.

XenonRide · Mar 8, 2014

Yeah I already checked all that.

It's fine, at least you're helping

If I go into "device manager" and go under display devices it doesn't show my graphics card.

millwright · Mar 8, 2014

Right click the desktop, and choose screen resolution, and see what you have.
If win 7 it is just a slider.
Then choose advanced setting and go through the tabs, and see if it looks reasonable.

If it is not showing in device manager, and it is plugged into the monitor, then it sounds like it is running in basic VGA mode.

Not a clue why.
It makes no sense, but this is a computer.

Download the drivers, and install them and see what happens.

XenonRide · Mar 8, 2014

I cant really do anything, it's all running too slow.

millwright · Mar 8, 2014

Can you run system restore to a date when it was working,

That would eliminate a software problem, and narrow it down to hardware, if it still doesn't work.

That is if system restore works.

Run a Linux live disk, and see if it runs smoothly under Linux. That usually proves it is not hardware, and is the Windows operating system.

Do a clean install of windows, and re-install all the drivers.
That will prove if it is hardware or software.

The only way the case could effect the computer is ,if there is a short, but I don'y see how that would create this problem.

But who know, stranger things have happened.
If you feel you want to prove that or not assemble the computer outside the case, on a non conductive surface, and run it.

The is how you usually check for a short, but shorts stop the computer from starting at all , that is why I can't see how that could be the problem.

You have to enjoy this geek stuff, because it is just constant boring testing.

If you find it is hardware, then you have to test all your components, in a running computer, one at a time or test known working components, in your computer one at time.

WinterTactic · Mar 9, 2014

It sounds like your BIOS might've reset during your transfer, so you might need to reconfigure it. Make sure the little battery on your motherboard is intact and has power, if it doesn't then you'll need to replace it. The battery ensures that you don't lose your settings when you shut down or unplug your PC from the outlet. Hopefully it works out for you, good luck!

Reno

dkulprit · Mar 9, 2014

Do you or does a friend have a pc you can put it in to check to see if it's a brick?

Also, what is your psu?

XenonRide · Mar 9, 2014

600W PSU, I don't have anywhere to test it :??:

XenonRide · Mar 9, 2014

Oh and also, I just replaced the battery for my motherboard with a brand new one, I have tried setting up my BIOS again but when I pick PCIE as the primary GPU it doesn't let me save it and reverts back to "auto", does this mean the GPU is broken?

XenonRide · Mar 9, 2014

Okay so I have some new news on this, it looks like the PCI-E slot was broken, so I replaced that and it works! However a new problem has risen, my computer starts, stops, starts, stops in a loop until I turn the powersupply off. What could be causing this?

dkulprit · Mar 9, 2014

Power supply failure or not enough power.

if you smell inside your PC, is there any burning smell?

millwright · Mar 9, 2014

How long is this loop?

XenonRide · Mar 10, 2014

dkulprit :

I can't smell burning, I don't see how I wouldn't have enough power since I have a 600W power supply.

jimbo07 · Mar 10, 2014

The infinite restart loop is typical for a broken mother board. Just replaced my mother board after the same problems.

PC can't detect my graphics card

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