Independent processor voltage supply

Details Independent processor voltage supply Independent processor voltage supply

2007-01-18

2010-12-14

Elamin, Abdelmoniem (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

C713S310000, C713S320000, C713S321000, C713S322000, C713S323000, C713S324000, C713S330000

Reexamination Certificate

active

07853808

ABSTRACT:
Systems, methods and program codes are provided for selectively adjusting multi-core processor chip structure individual processor core power supply voltages through controlling individual power supplies for each core, in one aspect to ensure that one or more cores operate at clock rates in compliance with one or more performance specifications. Nominal power supply voltage is supplied to a first processing core, and a second core power supply voltage greater or lower than the nominal power supply voltage is supplied to a second processing core, both cores operating in compliance with a reference clock rate specification. The second power supply voltage may be selected from ordered discrete supply voltages derived by progressively lowering the nominal supply voltage, optionally wherein the selected supply voltage also enables the second core to operate within another performance specification.

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