Gigabyte 790GX onboard video - doesn't work as secondary video card?

[SunnyD]

I've been trying to enable the onboard video on my MA790GP-DS4H to use it as a "secondary" video card. It works fine if I enable in it the BIOS, set the BIOS to initialize the onboard video first, AND have the monitor plugged into it. However if I set the BIOS to initialize PEG1 first (9600GSO) with my monitor plugged into the video card, the onboard video never even gets detected in Windows.

I also tried setting it to initialize onboard video first, with the monitor plugged into the video card, and of course absolutely NOTHING shows up on the screen. Each work fine independently, but not together.

With that said, before you all go saying "Well duh, you can't run NVIDIA + AMD at the same time"... yeah, you can. I'm using Windows 7, and it works fine with two discrete dissimilar video cards.

Any suggestions? I would like to be able to utilize the onboard GPU for things like folding or whatnot.

 

[hans007]

using the IGP for dual monitors with the ATI graphics only works with other ATI graphics cards as far as i know.

 

[SunnyD]

Originally posted by: hans007
using the IGP for dual monitors with the ATI graphics only works with other ATI graphics cards as far as i know.

I don't really want it for dual monitors... I want it headless so that I could do things like folding on it as well as the discrete cards.

 

[srp49ers]

I get the same thing on my Asus M4A78T-E which is also a 790GX chipset. The on-board does not show up in windows when i have pci-ex to initialized first.
Im curious as well to see if this can be made to work. I dont see why not?

 

[SunnyD]

Updated the BIOS to F4a (3/19/09), still no love. At least I can get into the ACC settings and such now.

I emailed Gigabyte about it last week, haven't had a response yet.

 

[SunnyD]

Reply from Gigabyte: The onboard video will always be enabled as primary. There is no way to enable it as a secondary adapter.

 

[HGC]

I read recently (sorry, I forget the source) that using onboard video along with a video card only works for older, less powerful cards. AMD 3000 series or less. Hybrid Crossfire was designed only to give a boost to weaker cards.

 

[tcsenter]

Originally posted by: SunnyD
Reply from Gigabyte: The onboard video will always be enabled as primary. There is no way to enable it as a secondary adapter.

Always been that way for IGP solutions.