# US 2025/0085757 A1 · Information handling system power use telemetry to predict system state of health > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0085757 A1 - Document ID: US20250085757A1 - Status: Published application - Kind: A1 - Application number: 18/243,897 - Filed: 2023-09-08 - Published: 2025-03-13 - Earliest claimed: 2023-09-08 - Assignees: Dell Products L.P. - Applicants: Dell Products L.P. - Inventors: John Trevor Morrison; Jace W. Files; Hsu-Feng Lee - Web page: https://patentgrep.com/patent/US20250085757A1 ## CPC - G06F 1/28: Supervision thereof, e.g. detecting power-supply failure by out of limits supervision - G06F 1/263: {Arrangements for using multiple switchable power supplies, e.g. battery and AC (G06F1/30 takes precedence)} - G06F 9/4403: {Processor initialisation} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract An information handling system monitors current at plural current sensors during each of plural predefined events, such as power up and boot, to detect power anomalies that indicate failing components, such as bad charger, bad power rail, bad motherboard and/or back cover deck. Current during a boot event is compared to a baseline value for the event, such as a value measure and stored at manufacture of the system, and/or an average of current measured for a predetermined number of previous events. In one embodiment, a separate analysis is performed based upon whether the system boots from battery power or external alternating current adapter power. ## Claims ### Claim 1 An information handling system comprising: a housing; a processor coupled to the housing and operable to execute instructions that process information; a memory coupled to the housing and interfaced with the processor, the memory operable to store the instructions and information; plural current sensors configured to measure current at plural locations within the housing; a processing resource interfaced with the current monitor; and a non-transitory memory interfaced with the processing resource and storing instructions that when executed on the processing resource: determine power use associated with the current at each of the plural locations during a predetermined event; and compare the power use against a threshold power use for the predetermined event to determine a power anomaly. ### Claim 2 (depends on 1) The information handling system of claim 1 further comprising: a battery operable to power the processor and the memory; and an external alternating current (AC) power source operable to power the processor and the memory; wherein the instructions perform a first comparison when the battery powers the processor and the memory during the event, and perform a second comparison when the external AC power source powers the processor and the memory during the event. ### Claim 3 (depends on 2) The information handling system of claim 2 wherein the instructions measure power during each power up boot of the processor. ### Claim 4 (depends on 3) The information handling system of claim 3 wherein the instructions: initiate power monitoring with a first instruction in preboot code; and terminate power monitoring with a second instruction at handoff of the system BIOS to start the operating system. ### Claim 5 (depends on 3) The information handling system of claim 3 wherein the instructions measure power as current at one or more singular time points during boot. ### Claim 6 (depends on 2) The information handling system of claim 2 further comprising: a first current sensor between the external AC power source and a battery charger; and a second current sensor between the battery charger and a power rail that interfaces with a motherboard. ### Claim 7 (depends on 6) The information handling system of claim 6 further comprising: a third current sensor between the power rail that interfaces with the motherboard and the motherboard. ### Claim 8 (depends on 2) The information handling system of claim 2 wherein the power use threshold comprises a predetermined amount over a power use measured for the event at manufacture of the information handling system. ### Claim 9 (depends on 2) The information handling system of claim 2 wherein the power use threshold comprises a predetermined amount over a power use measured and averaged over a predetermined number of boots. ### Claim 10 A method for monitoring information handling system reliability, the method comprising: at each occurrence of a predetermined event, measuring current at each of plural current sensors at each of plural locations in the information handling system; and comparing the current use against a threshold current use for the predetermined event to determine a power anomaly. ### Claim 11 (depends on 10) The method of claim 10 further comprising: storing a baseline current use for the information handling system at manufacture; and setting the threshold current use as a predetermined amount over the baseline current use. ### Claim 12 (depends on 11) The method of claim 11 further comprising: determining an average of the current use over a predetermined number of the predetermined events; and setting the threshold current use as a predetermined amount over the average current use. ### Claim 13 (depends on 12) The method of claim 12 further comprising measuring current at a predetermined event of a command during boot of the information handling system, the current measured as a singular value during an instance. ### Claim 14 (depends on 13) The method of claim 13 further comprising measuring current at a predetermined event of start command and stop command during boot of the information handling system, the current measured in the time range between the start command and the stop command. ### Claim 15 (depends on 14) The method of claim 14 wherein the current measured in the time range is a maximum current measured during the time range. ### Claim 16 (depends on 10) The method of claim 10 wherein the measuring current further comprises: measuring a first current between an AC external power and a battery charger; measuring a second current between the battery charger and a power converter; measuring a third current between the power converter and a motherboard; and isolating the power anomaly by comparing each of the first, second and third currents against a stored baseline current for each of the first, second and third currents. ### Claim 17 A system for monitoring information handling system reliability comprising: plural current sensors configured to measure current at plural locations within the information handling system; a current monitor interfaced with the plural current sensors; a processing resource interfaced with the current monitor; and a non-transitory memory interfaced with the processing resource and storing instructions that when executed on the processing resource: determine current use associated with each of the plural locations during a predetermined event; and compare the current use against a threshold current use for the predetermined event to determine a power anomaly. ### Claim 18 (depends on 17) The system of claim 17 further comprising: a battery; and an external alternating current (AC) power source; wherein the instructions perform a first comparison when the battery powers the information handling system during the event, and perform a second comparison when the external AC power source powers the information handling system during the event. ### Claim 19 (depends on 18) The system of claim 18 wherein the instructions measure power during each power up boot of the information handling system. ### Claim 20 (depends on 19) The system of claim 19 wherein the instructions: initiate power monitoring with a first instruction in preboot code; and terminate power monitoring with a second instruction at handoff of the system BIOS to start the operating system.