Computer system using software controlled power management metho

Details Computer system using software controlled power management metho Computer system using software controlled power management metho

1996-11-29

1999-07-27

Sheikh, Ayaz R.

Electrical computers and digital processing systems: support

Computer power control

Power conservation

713340, 711104, 365222, G06F 100

Patent

active

059283653

ABSTRACT:
A computer system and its power management method capable of realizing a software control of the power supply with respect to the main memory according to a program's main memory utilization state, which are suitable for the power saving in a portable information terminal. In a computer system having a main memory device formed by a plurality of memory banks, a power source for supplying a power to operate the main memory device, and a processor for executing programs and managing allocation and release of memory regions on the main memory device with respect to the programs, a memory power management function determines any unused memory bank in which all memory regions are currently unused according to a state of the allocation and release of the memory regions on the main memory devices with respect to the programs managed by the processor, and selectively stops a power supply from the power source to the unused memory bank while supplying the power from the power source to remaining memory banks other than the unused memory bank.

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