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OPERATIONAL DEFECT DATABASE
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Under certain operational conditions, the following events may occur on a ProLiant XL230a, ProLiant XL250a, or ProLiant XL260a Gen9 server: The server may unexpectedly power off and an Integrated Management Log (IML) message will be logged in iLO. The IML message contains the following information: ?Server Critical Fault (Service Information: Runtime Fault, System Board, AUX/Main EFUSE Regulator 1 (10h))? When this occurs, all of the front panel LEDs will blink simultaneously, indicating a power fault; i.e., the UID, Power Button and iLO Health LED blink in sequence at a rate of 1 blink per second. This can occur if there is an instantaneous drop in regulated voltage when servers are operating at rated maximum power condition, causing E-FUSE regulators to trip, resulting in a reboot/shutdown. A combination of one or more of the following can lead to the drop in voltage: The total enclosure/server power load operates near or above the desired power redundancy mode, even when the enclosure power capping mode is set to mode 1. There are an insufficient number of DC power cables connected between the power shelf and enclosure. Four sets of DC cables are required for a fully populated Apollo a6000 enclosure with ProLiant XL230a or ProLiant XL250a servers. (Note: recommendation is a minimum of one set of cables per 1200W of system load). Loss of power shelf input power on one or more power supplies. Loosened screws holding the chassis power backplane power connectors. If the chassis power backplane voltage drops below 11.5 volts, one or more nodes will detect an input under-voltage condition, causing the server to power down immediately. This incident gets logged in IML as a critical power fault event and the front panel LED blinks with a pattern indicating power-fault.
Any HPE Apollo a6000 Chassis configured with any of the following: HPE ProLiant XL230a Gen9 Server HPE ProLiant XL250a Gen9 Server HPE ProLiant XL260a Gen9 Server HPE Apollo a6000 Power Shelf
To correct this issue, perform the following: Verify that all four DC power cables of a chassis are connected to the power shelf Follow DC cabling guidelines in HPE Apollo a6000 Chassis Setup and Installation Guide (Page 28) Verify that the configuration is supported and configured correctly via the HPE Power Advisor If all four DC power cables are installed and the configuration is supported by HPE Power Advisor, replace the Apollo a6000 power backplane with spare part number 738746-001 by contacting HPE Support and referencing this advisory: Click on the following URL to locate the HPE Customer Support phone number in your country: https://h20195.www2.hpe.com/v2/Getdocument.aspx?docname=A00039121ENW . In the case of an E-FUSE trip, set the power cap setting to N+1 redundant (Mode 2: Full AC/DC Redundancy Mode). RECEIVE PROACTIVE UPDATES : Receive support alerts (such as Customer Advisories), as well as updates on drivers, software, firmware, and customer replaceable components, proactively via e-mail through HPE Subscriber's Choice. Sign up for Subscriber's Choice at the following URL: Proactive Updates Subscription Form. NAVIGATION TIP : For hints on navigating HPE.com to locate the latest drivers, patches, and other support software downloads for ProLiant servers and Options, refer to the Navigation Tips document . SEARCH TIP : For hints on locating similar documents on HPE.com, refer to the Search Tips document .