Windows 7 Ultimate 64-bit SP1
Intel i7 2600K Sandy Bridge (overclocked to 4.4 Ghz)
Zalman Air Cooler
ASRock Extreme7 Gen 3 motherboard
16 GB Corsair Vengeance DDR3 1600
64 GB SSD (Windows)
512 GB SSD
750 GB WD Black Caviar HDD
(2) Sapphire Radeon 6970 2 GB DDR5 RAM (linked in Xfire)
1200 Watt Corsair Gold Professional Series Power Supply
Creative xFi Titanium Sound Card
I built the system, posted with no issues, installed Windows, installed all necessary updates and drivers. Everything went really, really smoothly.
I used an LG 32LD450 as my monitor during the build and it looked and worked great.
The issue is that I was building the system for a friend (he has an 27" Apple Cinema LED), and when he connects the monitor to the Sapphire 6970 via miniDisplayPort it gets no signal.
I was using HDMI to connect to the LG monitor, and Windows automatically installed the drivers for that display.
My thoughts are that this might be a driver issue. That the computer is trying to output video signal via the HDMI port to an LG monitor, when it should recognize that a Apple monitor is plugged into the miniDisplayPort and adapt.
We have tried connecting a different tv/monitor via HDMI and also an old-school monitor to the motherboards IGX, but get nothing.
So, any ideas? Would really appreciate some help. So far we have been unable to get any video to display at all. No post screen, bios, nothing.