ASRock AM1H-ITX does not work with my 27" Display

TV

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Apr 19, 2014
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Hello All,

I have an ASRock AM1H-ITX motherboard, with a quad core Kabini CPU, 16G RAM, 240GB SSD and nothing else.

Its running Windows 7 Ultimate with all the stock drivers from ASRock/AMD installed.

Everything seems to be working fine except that it simply will not see my 27" (2560x1440) DVI display. It works fine with VGA displays, DVI 1920x1080, HDMI with adapter to DVI 1920x1080, etc. But not the higher resolution monitor. I know the monitor is good, I use on my other rig every day.

Very frustrating... this setup is supposed to work with the new 4K displays, but apparently not with my 2.5K display. Odd!

 
Four graphics output options: D-Sub, DVI-D, HDMI and DisplayPort 1.2
- Supports HDMI with max. resolution up to 4K x 2K (4096x2160) @ 24Hz or 4K x 2K (3840x2160) @ 30Hz
- Supports DVI-D with max. resolution up to 1920x1200 @ 60Hz
- Supports D-Sub with max. resolution up to 2048x1536 @ 60Hz
- Supports DisplayPort 1.2 with max. resolution up to 4K x 2K (4096x2160) @ 30Hz
- Supports Full HD 1080p Blu-ray (BD) playback with DVI-D, HDMI and DisplayPort 1.2 Ports