Computer system having power supply primary sense to facilitate

Details Computer system having power supply primary sense to facilitate Computer system having power supply primary sense to facilitate

1997-12-12

2000-06-27

Grant, William

Data processing: generic control systems or specific application

Generic control system, apparatus or process

Having protection or reliability feature

713340, G05B 902, G06F 128

Patent

active

060817526

ABSTRACT:
A computer system having suspend and resume capabilities that uses the hard drive to extend the amount of nonvolatile memory (NVRAM) in the system. As the system is powered down, the system processor saves to the hard drive system parameters such as: resource allocation data determined pursuant to the Plug & Play specification, total power on hours for the system, the number of power on cycles for the system, error codes, and the dates the errors occurred. The saving to hard drive begins responsive to circuitry monitoring the primary (AC input) portion of the power supply indicating that the power supply input is out of tolerance, as would occur when the user actuates the power switch to turn the system off or during a blackout. During the period of reliable processing time remaining, the above system parameters are written to the hard file. The system parameters are also saved to the hard file during the controlled power off that occurs as the system state is suspended.

REFERENCES:
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patent: 5193176 (1993-03-01), Brandin
patent: 5265163 (1993-11-01), Golding et al.
patent: 5287363 (1994-02-01), Wolf et al.
patent: 5339446 (1994-08-01), Yamasaki et al.
patent: 5481730 (1996-01-01), Brown et al.

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