CPU Cores Enabled
(Active Processor Cores)
This parameter allows selecting the amount of active cores in multi-core processor.
- ALL – all cores are used (recommended value);
- 1,2,3 – the amount of active cores will be limited by a set number. This value may be necessary for experiments or installation of outdated operating systems.
In some motherboards you can find such parameters as Core Multi-Processing, CPU Multi-Threading or SW Single Processor Mode, with the help of which you disconnect all cores except the first one.
Enhanced CI Control (Enhance Halt State,
C-State, C1E Function)
This parameter controls the processor operation in low-power mode following the commend “Halt”.
- Auto (Enabled) – the usage of C1E mode is allowed (recommended value);
- Disabled – C1E mode is off.
This parameter sets one or two modes for overheat protection system in the Intel processors.
- Thermal Monitor 1 (TM1) – in case of overheating a processor might miss several working clock cycles that will lead to its cooling;
- Thermal Monitor 2 (TM2) – a processor decreases an internal clock frequency for cooling; this reduces pressure more smoothly than in case of missing cycles.
In some versions of BIOS there is a similar parameter – CPU Thermal Monitor 2 (TM2) that controls the TM2 mode. It sometimes has additional parameters, for example TM2 Bus Ratio and TM2 Bus VID which set the multiplying ratio and power supply voltage during overheating.