Power-up of multiple processors when a voltage regulator module has failed
First Claim
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1. An information handling system having a plurality of processors and a plurality of voltage regulator modules associated therewith, said system comprising:
- a plurality of processors;
a plurality of voltage regulator modules, each of said plurality of voltage regulator modules supplying operating voltages to associated ones of said plurality of processors; and
a power controller, wherein said power controller enables each of said plurality of voltage regulator modules, checks each enabled one of said plurality of voltage regulator modules for proper operation, and enables each of said plurality of processors that is associated with a properly operating one of said plurality of voltage regulator modules.
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Abstract
In an information handling system, voltage regulator modules (VRM) are first enabled and determined to be operational before enabling an associated processor. If a VRM is determined not to be operational, then the associated processor is disabled. Once all VRMs are determined to be operational or not operational and the associated processors are enabled or disabled as the case may be, the information handling system is operationally started-up with all operational VRMs and associated processors functioning.
77 Citations
22 Claims
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1. An information handling system having a plurality of processors and a plurality of voltage regulator modules associated therewith, said system comprising:
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a plurality of processors;
a plurality of voltage regulator modules, each of said plurality of voltage regulator modules supplying operating voltages to associated ones of said plurality of processors; and
a power controller, wherein said power controller enables each of said plurality of voltage regulator modules, checks each enabled one of said plurality of voltage regulator modules for proper operation, and enables each of said plurality of processors that is associated with a properly operating one of said plurality of voltage regulator modules. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for power-up of multiple processors in an information handling system, said method comprising the steps of:
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a) enabling a first voltage regulator module;
b) determining whether the enabled first voltage regulator is operational;
c) enabling a first processor if the enabled first voltage regulator is operational, otherwise disabling the first processor;
d) enabling another voltage regulator module;
e) enabling another processor if the enabled another voltage regulator is operational, otherwise disabling the another processor;
f) determining whether all voltage regulator modules have been enabled, if not then repeating steps d) through f) and if so then;
g) enabling an information handling system start-up. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22)
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Specification