3rd Monitor not working! Help!

[Sagar Bharadia]

Hello, I just got my new setup about 2 hours ago and even with alot of umbling around i just simply cant get the third monitor to work!
Specs Of The Computer:
Intel Core i5-4460
8gb ram
Windows 8.1 64
MSI Gtx 970

Monitors:
All the three monitors are the same. They are the Benq gl2250hm monitors

Ports on the graphics card being used:
DVI - D, HDMI and Displayport

Cables im using:
Displayport to HDMI - http://www.amazon.co.uk/gp/product/B00J8H47NM/ref=ox_sc_act_title_5?ie=UTF8&psc=1&smid=AEB9F56C3A3O6
[Display port is connected to the graphics]
DVI-D Cable: http://www.amazon.co.uk/gp/product/B00227706G/ref=ox_sc_act_title_6?ie=UTF8&psc=1&smid=A3P5ROKL5A1OLE
HDMI CABLE : http://www.amazon.co.uk/gp/product/B00NH128MC/ref=ox_sc_act_title_7?ie=UTF8&psc=1&smid=A3P5ROKL5A1OLE

Problem: My dvi and hdmi monitors work fine but with the third monitor the monitor doesnt detect the cable?! Windows 8.1 detects the third monitor and nvidia control panel does too so i dont know what the problem is :| Please could someone help? Thank You!

 

[ffg7]

try another display port cable to see if yours is bad or not. try that monitor & cable on another computer that has a working display port. as all 3 are the same monitors with same ports, switch cables with 1 of the other monitors to see the problem goes away or goes to the other monitor.