This is more of a editing software issue but if anyone can help, I'd appreciate it.
I'm trying to help a friend who has an Asus Motherboard P8Z77-V LE. He also has an AMD Radeon HD 7900 Graphic card. All drivers are up to date. I want to have 2 monitors on the AMD card and a third monitor connected to the on-board graphic card (which has DVI and HDMI and a "DisplayPort" that I don't have a cable for).
The bios has a graphic option to choose my primary Graphic source. There are 4 to choose from: AUTO, igpu (integrated graphics processors), PCI-E and PCI. If I choose any besides the igpu, all works fine but the third monitor doesn't turn on. If I choose igpu, the third monitor works great (it gets an extended part of the desktop) but if I try to open a new project preset in Premiere cs6 or open an existing project and try to import something, Premiere CS6 crashes.
After effects crashes just on trying to open it, with an error about GPU graphics.
If I change the BIOS to Auto or PCI, all adobe products work great but the third monitor won't turn on.
How can I use Adobe software with three monitors?
Why won't the third monitor work with Auto or PCI selected in the BIOS?