I have a GA-ma74GM-s2 motherboard
An Athlon x4 II 620
4GB of ram
radeon HD 5700
I use easytune/MB bios to comfortable overclock the CPU and memory and HT and NB, but I can't seem to budge the 5770 even one megahz. I used CCC autotune and it set it at something crazy like 950 cpu and 1434 memory (stock is 860/1200). It all looks fine in 2d, but once I start playing a 3d game (Star Trek Armada 2 to be specific), the screen flickers like crazy.
I tried MSI afterburner...same thing. I tried higher voltage...same thing. The desktop and internet explorer and office documents look fine when i am over clocked, but if set the video card at anything but stock settings, when I play Armada 2, the screen flickers rapidly. It seems like sync problem because it looks like the same think when we overclocked those ancient cards and turned vsync on and off. It is usually the bottom half or bottom 1/3rd that flickers. the rest looks fine. i will try other 3d games an see if it does with those as well.
msi afterburner also lets you tweak VDCC, but it doesn't clock down when not in use and there is no autotune. I might try Sapphire TRIXX. CCC aint bad as it has auto tune and it clocks down, but there is no VDCC control.