아이비브리지 등 3세대 인텔 Core 계열 CPU에서 트리플 모니터(모니터 3개)를 쓸 수 있는 경우 FAQ

3rd Generation Intel® Core™ Processors with Intel® HD Graphics 4000/2500

Configuration FAQs for using three monitors

http://www.intel.com/support/graphics/intelhdgraphics4000_2500/sb/CS-033714.htm

Which Intel graphics and chipsets support three independent displays?
Three independent displays are only supported for these Intel® Processors when used with an Intel® 7 Series Chipset:
    3rd Generation Intel® Core™ Processors with Intel® HD Graphics 4000/2500
    Intel® Pentium® Processors 2000 series with Intel® HD Graphics
    Intel® Pentium® Processors G2100 series with Intel® HD Graphics 

: 샌디브리지 안 되는 듯. 하지만 샌디사용자는 아쉬워하지 말 것. 아이비사용자도 별 거 없다. 더 읽어보라.

Which operating systems support three display configuration?
Microsoft Windows 7* and Windows 8* operating systems

: 윈도7 이상에서만.

What three independent display configurations are supported?
In most cases, three independent displays are supported in the following configurations:
    If two of the displays are DisplayPort* monitors
    If one of the displays is an Intel® Wireless Display (Intel® WiDi)
    If the built-in display is an Embedded DisplayPort1 (eDP)
View a comprehensive table of supported configurations and notes
In most cases, three independent displays are supported in the following configurations: 

: 모니터 3개를 연결하려면 반드시, 그 중 2개는 디스플레이포트에 연결해야 한다.

듀얼모니터만 쓸 것 같으면 그냥, DVI포트와 HDMI포트, D-Sub 포트 중 아무 거나 두 개에 각각 연결하면 끝.

 What is the maximum resolution supported in three independent displays configuration?
    In clone mode: 1920 x 1200 at 60 Hz.
    In extended desktop mode: One display at 2560 x 1600 at 60Hz and the remaining two displays at 1920 x 1200 at 60 Hz.
If using a mobile processor, Embedded Display Port (eDP) supports 1920 x 1200 at 60Hz, and two external displays using 2560 x 1600 at 60Hz.

2560 해상도를 사용하려면 반드시 디스플레이포트를 써야 함.

메인보드 백패널 디스플레이포트에 동글(젠더, 어댑터)을 연결해 디스플레이포트말고 다른 포트가 달린 모니터에 연결할 수 있느냐 하는 문제는, 메인보드 제조사에 문의하란 이야기같다:

Is a passive dongle supported in three display configurations?
Yes. Passive dongles are supported if the system manufacturer has programmed the BIOS to support dual-mode interoperability (DisplayPort > HDMI, DisplayPort > DVI, DisplayPort > VGA).
Note     See display combinations for valid passive dongle configurations based on the connected display.

Is an active dongle supported in three display configurations?
Yes. Intel has validated DisplayPort > VGA active dongles only.
Note     See display combinations for valid active dongle configurations based on the type of active dongle. For example, if you are using DisplayPort > HDMI dongle, DisplayPort is the source and HDMI is the end interface.