PC Not Using GPU

oneiromancer · Jul 31, 2014

Good day. So I recently built a PC and had some trouble with the computer recognizing the GPU (http://www.tomshardware.com/answers/id-2223837/problem-recognizing-gpu.html) but have since solved that problem. Unfortunately, as I learned today, although the PC was displaying the GPU in the device manager (along with the integrated graphics card), it wasn't using it to run any games. I did some research and people suggested that the way to get around this was to disable the integrated graphics card in the BIOS in order to force Windows to rely on the GPU. However, once I did that, I stopped getting any display at all (and can't even see the BIOS or startup anymore). I'm not sure what to do about this. I mean, I tried googling the BIOS and just using what key strokes I thought would turn back on the integrated graphics but that didn't work. How should I get my basic display back? And beyond that, how do I get my computer to start actually using my expensive GPU so that I can actually run games satisfactorily?

Thanks in advance!

clutchc · Jul 31, 2014

If this is a desktop PC, the monitor will only display the signal from the port it is plugged into. If your monitor is plugged into the gfx card, it HAS to be using the card.

JakerzXD · Jul 31, 2014

Does the computer boot with onboard graphics?

oneiromancer · Jul 31, 2014

clutchc :

Well, right now it's not showing me anything but I've only disabled the onboard graphics card. My drivers were up to date but no game could recognize or make use of my external GPU. My problem is that nothing is actually recognizing and thus making use of the card. Again, note that I can see nothing right now despite the GPU not having been disabled in the BIOS.

JakerzXD · Jul 31, 2014

In the worst case scenario, you would probably have to use flash your bios to re-enable the onboard graphics.

clutchc · Jul 31, 2014

oneiromancer :

Your monitor is plugged into the gfx card? The monitor is set to DVI, HDMI, or VGA... which ever you are using?

oneiromancer · Jul 31, 2014

JakerzXD :

Do I do this by removing the battery from my mobo?

oneiromancer · Jul 31, 2014

clutchc :

oneiromancer :

Your monitor is plugged into the gfx card? The monitor is set to DVI, HDMI, or VGA... which ever you are using?

VGA through my mobo.

JakerzXD · Jul 31, 2014

oneiromancer :

Either that or using the jumper block on your motherboard. You can find that in your motherboards manual.

mlga91 · Jul 31, 2014

Did you succesfully installed the amd drivers? sometimes is a real PIMA to update them, try making a partition and make a fresh windows install.

oneiromancer · Jul 31, 2014

Okay so I've got my display back. I was able to enable the onboard graphics card in my BIOS without being able to see it (and hopefully I didn't screw up anything else...). The problem remains though that games are not recognizing or using my GPU. Deus Ex, for example, only lists my onboard graphics card in the boot menu and doesn't even show another option.

smeezekitty · Jul 31, 2014

You need to have the monitor connected to the card for it to use it.

oneiromancer · Jul 31, 2014

smeezekitty :

You need the monitor connected to the GPU to run games off of it?

smeezekitty · Jul 31, 2014

oneiromancer :

Yes

oneiromancer · Jul 31, 2014

I can't find any information to corroborate this. Why wouldn't the mobo be able to utilise the GPU even without a monitor connection?

mlga91 · Jul 31, 2014

oneiromancer :

You really dont have the monitor connected to the GPU?? Conect it ASAP

smeezekitty · Jul 31, 2014

oneiromancer :

Because the GPU does the processing and rendering.
To make it clear, the monitor should always be connected to the GPU card if one is installed.
If you cannot get video output from the DVI or VGA port on the GPU then somehting is wrong

clutchc · Jul 31, 2014

Oh Geeze! What was the first thing I asked?

PC Not Using GPU

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