Sager 5793 (T9300 CPU) multiplier reported wrong

[S.SubZero]

After a long break from osx86 I decided to try out iATKOS S3 V2 and it works remarkably well, even updated to 10.6.5 with SU and it went through flawlessly. One small thing I'm running into, is the CPU speed is being reported oddly. I have an Intel T9300 CPU, 2.5Ghz C2D. Profiler identifies it as such:

 

Processor Name: Intel Core 2 Duo

Processor Speed: 2.31 GHz

...

Bus Speed: 739 MHz

 

This is using VoodooPower. PStateChanger agrees with this, and only shows speed up to 2313Mhz.

 

If I use AppleIntelCPUPowerManagement the speed is reported "more right" (ie. it shows I believe 2.49Ghz) but it has noticeable performance issues.

 

How can I get the system to run at the proper speed? I don't care too much for SpeedStep, it can run full bore for all I care.