Dell PowerEdge C6220 Hardware Owner's Manual page 74

Option
Hyper Threading Technology
(Enabled default)
CPU RAPL Big Dial
(Scorpion, Nemo only)
(Off default)
CPU RAPL Small Dial
(Scorpion, Nemo only)
(0 default)
Prefetch Configuration
74 | Installing System Components
Description
Enables/Disables Hyper-Threading Technology.
Sets off to disable CPU RAPL feature. Power Limit
(Watt#)=CPU RAPL Big Dial – CPU RAPL Small
Dial.
Power Limit (Watt#) = CPU RAPL Big Dial – CPU
RAPL Small Dial.
Configures Prefetch. (Invisible if CPU do not support.)