Using onboard GPU + Discrete GPU simultaneously?

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Synomenon

Supreme [H]ardness
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Feb 10, 2007
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Got this board:

Gigabyte GA-E7AUM-DS2H w/ onboard GeForce 9400
http://www.gigabyte.us/Products/Motherboard/Products_Overview.aspx?ProductID=2949


I'm having trouble using the onboard 9400 + my GTX260 though. I've installed the latest chipset driver directly from NVIDIA's site. When I installed that, I chose not to install the video driver during the first part of setup.

After the chipset driver install, I downloaded the latest GTX260 driver directly from NVIDIA's site and installed that.

Now when I go to the device manager, under "Display adapters" it shows:

- NVIDIA GeForce GTX 260
- Standard VGA Graphics Adapter (Yellow triangle and exclamation point next to / on it)


The GTX260 is working fine, but I can't get the onboard 9400 to work.
 
Do you have your monitor plugged into the VGA connection on the motherboard?
It seems to use the hybrid feature, that is your only choice.

I'd check in BIOS for settings dealing with enabling the hybrid feature on the onboard.
 
Yeah, I have my two main monitors connected to the GTX260 and a third monitor connected to the VGA port of the onboard video. I have tried enabling and disabling HybridSLI in the BIOS and that didn't change anything.
 
Have you read through this writeup?
Nvidia’s Hybrid SLI
It seems once setup, you'll see a taskbar switch to enable different modes, but the onboard must be connected to your main monitor.
What this means is that you will need to plug your primary display directly into your motherboard so that it functions when your main graphics cards have been turned off. However, what this looks like it might mean is that you’re limited to one digital and one analogue display output – that’s not exactly great news for those that run multiple monitors.
Click to expand...
Since it seems as if Windows didn't install the driver for the onboard, I'd see if Gigabyte lists a driver for Hybrid video.
 
I'm not trying to use the HybridSLI (GeForce Boost or HybridPower). I'm simply trying to use both my GTX260 and the onboard video simultaneously.

I know it's possible. I've seen posts from others who are doing it w/ other motherboards that have onboard NVIDIA GPUs. Before I got this motherboard, I had emailed XFX support about it as well since their GeForce 9300 board was one I was considering. Their support replied and said that it would work (using onboard video and a GTX260 simultaneously).

I've been trying for hours to get this working, but haven't found a solution.
 
I'd remove the 260 from the board and let Windows install or download a current driver for the onboard. Once it's setup, shut down and reinstall the 260 to see what Windows sees as your primary display video device.
 
Don't know what I did, but I just got it to work.

People weren't kidding though when they said that the NVIDIA 9400 chipset gets hot. Everest shows it at 102C right now. :eek:
 
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