Compare to CPU l, memory uses significantly less power because there is less transistor switching required. When the machine is idle, the relative power usage for cpu may become less. Microcontrollers are built into the core major components to s new thermal level and control individual component power state. This hardware set up is called power control unit and the firmware is called pcode. The firmware is typically proprietary and configuration is exposed via BIOS or OS to users.
Some vendor also run their Ocoe off-chip on a Baseboard Management controller and interface to the PCU via platform environmental control interface (PECI).
No comments:
Post a Comment