Few day ago, I had tested the new CPU AMD Phenom II X2 550 Black Edition with LN2. I hoped it can be overclock over 6GHz.
I used this system:
And the result:CPU AMD Phenom II X2 550
Mainboard Gigabyte 790FXT-UD5P
VGA 2x HD4890 Crossfire clocked 1000MHz/1150Mhz
Ram Crucial DDR3 1600MHz cas 7
HDD Raptor 150GB
Benchtable
CU-ALU combine pot
Break 6GHz successfully!
Max clock I can pass PI 1MB
Some fun with 3DMark05 42k scores.
and max freq is 6210Mhz, not bad : http://valid.canardpc.com/show_oc.php?id=577859
but it's rejected!
some pic:
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