My PC is with QuadCore Intel Core i7-3770 CPU. Operating System - Windows 8.1. Also I have 2 monitors - BenQ GL2250 and 1 monitor - Samsung SyncMaster 204B.
I want to connect these 3 monitors as extended display (using HDMI-HDMI, Display Port-VGA and DVI-DVI cables). Intel HD Graphics Control Panel allows only choose 2 of the 3 monitors. Windows detects my 3d monitor, but when I try to choose it as extend display it shows message "The display settings could not be saved....". I attach few screenshots.
P.S. I try to connect also other monitor and try with other cable connection order.
Hhmmm, my response was specific to the capabilities of the processor generations. I had also verified this in the datasheet for the 7 Series Chipset family PCH.
After reading your response, I looked at the TPS for the board and found the following note:
If using a processor with integrated graphics, the board will support only two of the integrated graphics interfaces simultaneously: DisplayPort, DVI-I, HDMI. Also, during the Power On Self Test (POST), the board will not output to the DisplayPort if DVI-I or HDMI is used at the same time as the DisplayPort.
Not understanding why this limitation existed, I went back and looked more closely at the PCH datasheet, I found a table that indicates that, for three simultaneous displays, two of them have to be DisplayPort. Since this board has only a single DisplayPort interface, however, it is not able to support three displays - at least not using the three connectors that are provided...
I know that there is a cost involved, but remember that other possibilities exist: (1) Add a USB 3.0 to HDMI adapter (found one under US$55: Amazon.com). (2) Add a PCIe graphics card (under US$25: Amazon.com).
Sorry I didn't have a better answer...
P.S. Another thought: I know that the NUC products can support multiple (up to 3) DisplayPort monitors, in a daisy chain, connected to the single DisplayPort interface provided. I do not know if this capability was supported in the 3rd Generation processor and/or 7 Series chipset PCH, but it may be worth checking into...