4 replies to this topic

[iDogma]

Hello mates! I got performance issues after enabling speedstep (MacPro3,1 model). Temperature is about 38-40, but interface is working worse (effects like hiding or opening windows are not smooth), xbench quartz score is about 150-160, gl score - 86.
video fired up using dsdt. any ideas why so low performance?

p.s. without speedstep my video works perfect, smoothly and without any lags

[pirloui]

Maybe it's stuck at the lowest frequency, you can check with cpu-x.
http://netkas.org/?p=72

[bbeepp]

iDogma, on Feb 24 2010, 10:42 PM, said:

...xbench quartz score is about 150-160, gl score - 86....

Seems like your graphic card is not working properly.
On mine system Quartz score is 298 and OpenGl score is 160.

[iDogma]

But without speedstep my quartz is about 220-230 points, opengl about 100-110. Much better, when without speedstep. Any ideas, why it is? Maybe it somehow connected with my low-power psu (500v, i heared this is a minimal bound for gtx260 and q6600). But on Windows i don't get any troubles, games and other stuff works fine.

[gatsu_1981]

Mate! I got your very same issue when I was finally able to get speedstep working on my overclocked Q6600.
And I resolved it!

You should make your hands dirty inside DSDT however:

http://www.insanelym...p...&start=1330