Enable Cool'n'Quiet on ESXi?

[alizee]

I have an ESXi 5 box that I've recently started playing with, and I'd like to make it my primary home server system. However, I'm pretty sure that Cool'n'Quiet is not function on my FX-8150. I know the option is enabled in the BIOS, but is there a way to tell in vSphere that it is working?

The reasons I believe it's not working:
Heatsink is super hot all of the time (Thermalright Ultra 120 with Scythe PWM fan)
CPU-Z in Windows guest always reports 3.6GHz
Minimum and Maximum Processor states don't show up in Power Management in said Windows guest.

AMD FX 8150
Gigabyte GA-990FXA-UD3
2x8GB Kingston DDR3-1600
IBM M5015

Is Intel's SpeedStep easier to get working? I may be tempted to sell the AMD gear and go Blue.

 

[quikah]

Enable in BIOS
vi client > select server > configuration tab > Power Management

That will tell you what is enabled.

You can see the current speed using resxtop, (p)ower screen.

I never even bothered looking in a guest so I have no idea what it would look like from that perspective.

 

[alizee]

Enable in BIOS
vi client > select server > configuration tab > Power Management

That will tell you what is enabled.

You can see the current speed using resxtop, (p)ower screen.

I never even bothered looking in a guest so I have no idea what it would look like from that perspective.

I checked the Power Management tab and saw that it was on 'Balanced', so maybe it was working. I changed it to low power, and I brought up resxtop with the help of google, and it seems like it may be using a lower p-state. Does this mean it is running at 1400MHz 89% of the time?

 

[quikah]

That looks correct.

I checked on my linux guests it is showing the max speed on my Xeon host, so I guess the guests always just shows the max speed. Although I have no idea how accurate dmidecode is.