Description
This monitor keeps track of the system redundant power and reports an error if a redundant power supply failed. There are at least two power supplies, each of which is capable of powering the system. If one power supply fails, the second one seamlessly takes over to prevent system loss of power.
The system redundant power supplies are also monitored and managed by BMC (Baseboard Management Controller), and power supply failure is reported through the logs in the BMC or RSA-II (Remote Supervisor Adapter). To ensure proper operations, keep the firmware and the device driver current. See the "Additional information" section below for the download location.
Causes
These are some conditions that can cause a power supply to fail:
"
The power cord has been removed or is not properly inserted.
"
The AC outlet has no power.
"
The power cord is obstructed.
"
The hot swap power supply is not properly inserted.
It is also possible that a diagnostic message for power supply failure was issued mistakenly.
Implications
If one redundant power supply fails, the remaining power supply will supply the power. Depending on the system configuration, the system fans could spin at their maximum speed. Restore the AC power as soon as possible.
Resolutions
1. If possible, shut down the system and place a service call.
2.
Gather all the available information about your Alert.
"
Consult the Hardware Maintenance manual and Troubleshooting Guide.
"
Retain the full logs recorded by the systems management software (such as IBM Director Server).
Information in the logs such as the instance ID (or Device ID), when available, can help you to identify the particular component that experienced the problem.
3.
If you are a qualified service person and have the authority, shut down the system and check the following:
"
Identify the power supply and make sure it is plugged in properly.
"
Identify the power cord for the power supply and check its connectivity and integrity.
"
Locate the power supply and confirm that the AC outlet it is connected to has power, and supplies the correct voltage and current.
"
Check for any foreign objects around the power cord.
"
If needed, replace the power supply or order a replacement.
NOTE: To reduce the risk of electric shock or fire, shut down the system first. Do not attempt to service the system yourself. Refer all servicing to qualified service personnel.
Additional information
To find additional troubleshooting help, visit the "IBM Support & downloads" Web site, select "System x" for "Browse products for support" panel. At "Support & downloads quick start" page, select your product for "Choose your products", and "Troubleshooting" for "Choose your page", then select "View your page" for "See your results". To narrow the results, search with keywords that are related to this article, such as "fail", "Chassis", etc. in the "Search support" field at the right panel.
To download the latest firmware or drivers, visit the "Fix Central" Web site, select "System x" for "Product Group" (from the pull-down lists), select your product for "Product" (from the pull-down lists), select your product machine type for "Product" (from the pull-down lists), and select your operating system for "Operating system" (from the pull-down lists). You can refine the search by selecting the category of the download of your interest from the "Refine results" list.
To find the replacement part number (or the FRU number) for the component replacement, visit the "BladeCenter and System x Product Information - Servers" Web site, select your product from "IBM System x products" table. Then select "System service parts listing" for your product.
Home