AMD 64 X2 7750 Black Ed.

zevin

Distinguished
Mar 22, 2009
2
0
18,510
I just purchased a 7750 Black, along with an ASRock N61P-S, and I'm having a hard time with overclocking. Raising the multiplier by more then half a step causes reboot the moment I start P95. Even without overclocking, I'm seeing a lot of core voltage variations. set at 1.35v, while under load it can peak as high as 1.406 or so. Also, when its been running for a while, and gets to about 56c, the multiplier starts dropping. Every few seconds the multiplier will drop to 6.5 and then pop back up.

So, in short, the processor is not overclockible at all, and my voltages run crazy whenever its under load.

Should I be worried about the variance? is it related to the multiplier changing?

Any tips would be awesome!
 

zevin

Distinguished
Mar 22, 2009
2
0
18,510
AMD 64 X2 7750 Black
ASRock N61P-S
4GB G.Skill DDR2 1066
CoolerMaster 650watt PSU, (about 2 years old)
2x 74GB Raptor drives in Raid0 with a Silicon Image 3132 raid card
XFX GTS 250
Windows 7, build 7000