IBM 884015U Maintenance And Troubleshooting Manual

Contents

b. If the server stops during testing and you cannot continue, restart the serverand try running the diagnostic programs again. If the problem remains,replace the component that was being tested when the server stopped.c. The keyboard and mouse (pointing device) tests assume that a keyboardand mouse are attached to the server.d. If you run the diagnostic programs with either no mouse or a USB mouseattached to your server, you will not be able to navigate between testcategories using the Next Cat and Prev Cat buttons. All other functionsprovided by mouse-selectable buttons are also available using the functionkeys.e. You can test the USB keyboard by using the regular keyboard test. Theregular mouse test can test a USB mouse. Also, you can run the USBinterface test only if there are no USB devices attached.f. You can view server configuration information (such as system configuration,memory contents, interrupt request (IRQ) use, direct memory access (DMA)use, device drivers, and so on) by selecting Hardware Info from the top ofthe screen.If the diagnostic programs do not detect any hardware errors but the problempersists during normal server operations, a software error might be the cause. Ifyou suspect a software problem, see the information that comes with the softwarepackage.Viewing the test logWhen the tests are completed, you can view the test log by selecting Utility fromthe top of the screen and then selecting View Test Log. You can save the test logto a file on a diskette or to the hard disk.The test-log data is maintained only while the diagnostic programs are active. Whenyou exit from the diagnostic programs, the test log is cleared (saved test logs arenot affected). To save the test log to a file on a diskette or to the hard disk so thatyou can view it later, click Save Log on the diagnostic programs screen and specifya location and name for the saved log file.Note: To save the test log to a diskette, you must use a diskette that you haveformatted yourself; this function does not work with preformatted diskettes. If thediskette has sufficient space for the test log, the diskette may contain other data.Viewing the system-error log or BMC logYou can also view the system-error log and BMC log from the diagnostic programs.See the instructions in “Viewing error logs from diagnostic programs” on page 63.Identifying problems using status LEDsIf the system-error LED on the front of the server is on, one or more LEDs insidethe server or on the power supply will be on. Your server has LEDs to help youidentify problems with some server components. These LEDs are part of the lightpath diagnostics feature built into the server. By following the path of lights, you canquickly identify the type of system error that occurred.Your server is designed so that any LEDs that are lit remain lit when the servershuts down as long as the ac power source is good and the power supply cansupply +5 V dc current to the server. This feature helps you isolate the problem ifan error causes the server to shut down. See “Diagnosing problems using light pathdiagnostics” on page 68.66 xSeries 346 Types 8840 and 1880: Hardware Maintenance Manual and Troubleshooting Guide