Intel Core i5 3570K 3.4GHz LGA 1155 Processor Samsung 840-Series MZ-7TD120BW 120GB SATA 6.0Gb/s 2.5" Internal Solid State Drive (SSD) Biostar TZ77XE4 LGA 1155 ATX Intel Motherboard Corsair Vengeance Series 16GB DDR3-1600 (PC3-12800) CL10 Dual Channel Desktop Memory Kit (Two 8GB Memory Modules) HIS H777F1G2M iCooler Radeon HD 7770 1024MB GDDR5 PCIe 3.0 x16 Video Card
I plan to run 3 monitors. My idea was to run a pair off the mobo using on board graphics and run the primary off the dedicated GPU.
However, right now when I have the graphics card in the mobo and start it up I get no picture anywhere. When I remove the graphics card from the board I get picture but only using the VGA port on the mobo. The computer seems to recognize when I use the DVI port because I see a change on the VGA monitor, but nothing shows up on the DVI monitor.
Edit: I got the mobo to work with both VGA and DVI ports, but if I install the video card nothing works so that issue still remains.
More aboutdisplay issues build
installing a video card disables the onboard graphics. You can try using one of the other pcie slots. I've never tried doing what you want to do so I'm not sure if only the primary slot disables the onboard or not.
When I installd the 7770 it disabled the on board graphics. I went into BIOS and enabled it again. I now am running 2 monitors off the board and the primary and my TV off the 7770. All is well.