Solved Cannot increase refresh rate above 60Hz

turns out it was a defective cable. Swapped that out and flickering was gone. Always nice to have the latest drivers though so not all a waste. Uninstalled CCC as that appears to have a memory leak.

On a side note, you can detect flickering easier with your peripheral vision. Since it's a 50" TV, when reading webpages, I open the browser only on one side of the screen, leaving the other half empty or a second browser. That's when I noticed the flickering most.
 

My Computer

OS
Windows 7 Professional x64
CPU
AMD Athlon II X3 440, Rana
Motherboard
Gigabzte GA-870A-UD3
Memory
8GB (2x4GB) Corsair XMS3 DDR3 1600MHz
Graphics Card(s)
nVidea 7900 GT
Monitor(s) Displays
Dell U2311H
Screen Resolution
1920x1080
Hard Drives
4x WD 250GB SATA
1x Samsung 60GB SSD
PSU
Corsair 450W HX
Case
Coolermaster Elite
Cooling
2x 120mm case fans, 1x Zalman heatsink with 120mm fan
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