Electrical computers and digital processing systems: support – Computer power control – Having power source monitoring
Reexamination Certificate
2005-07-05
2005-07-05
Butler, Dennis M. (Department: 2115)
Electrical computers and digital processing systems: support
Computer power control
Having power source monitoring
C713S310000
Reexamination Certificate
active
06915440
ABSTRACT:
A power fault diagnostic mechanism for a computer system having a power system that includes a controller. A variable is recorded in a non-volatile memory associated with the power system. The variable assumes a first state when the computer system is powered on and operating. The variable remains in the first state until it enters a second state when the computer system is powered off in response to a power-off request. The controller operates in a standby mode when the computer system is powered off. Upon being powered up, e.g., after a utility power disturbance, the controller reads the variable in the non-volatile memory. This allows determination of whether a disturbance has occurred, even when the computer system was powered off. The controller maintains a local error log based on the variable accessed from the non-volatile memory. A system error log is updated by the operating system using the local error log.
REFERENCES:
patent: 4533865 (1985-08-01), Schlenk
patent: 4677566 (1987-06-01), Whittaker et al.
patent: 5117430 (1992-05-01), Berglund
patent: 5557777 (1996-09-01), Culbert
patent: 5724542 (1998-03-01), Taroda et al.
patent: 5935252 (1999-08-01), Berglund et al.
patent: 5951686 (1999-09-01), McLaughlin et al.
patent: 6044411 (2000-03-01), Berglund et al.
patent: 6052793 (2000-04-01), Mermelstein
patent: 6055581 (2000-04-01), Berglund et al.
patent: 6122256 (2000-09-01), Berglund
patent: 6122758 (2000-09-01), Johnson et al.
patent: 517403 (1992-12-01), None
IBM Technical Disclosure Bulletin, “Fault Indicator Software Support for Unattended Operational Personal Computer Systems,” vol. 34, No. 1, Jun. 1991, pp. 202-204.
U.S. Appl. No. 09/265,394, Movall et al., “Addition of Slot, Backplane, Chassis and Device Parametric Properties to Vital Product Data (VPD) in a Computer System”, filed Mar. 10, 1999.
Berglund Neil Clair
Tietjen John Nicolaus
Bussan Matthew J.
Butler Dennis M.
International Business Machines - Corporation
LandOfFree
Apparatus, program product and method of performing power... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus, program product and method of performing power..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus, program product and method of performing power... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3430920