IBM eServer 240 xSeries User Reference Manual

Also see for eServer 240 xSeries: Configuration and options guide

Contents

Contact your IBM service representative.The flash memory of your server contains a protected area that cannot beoverwritten. The recovery boot block is a section of code in this protected area thatenables the server to start up and to read a flash diskette. The flash utilityrecovers the system BIOS from the BIOS recovery files on the diskette.To recover the BIOS:Before you begin:Read “Electrical safety” on page 42 and “Handling static-sensitive devices” onpage 44.1. Turn off the server and peripheral devices and disconnect all external cablesand power cords (see “Preparing to install options” on page 46); then removethe cover (see “Removing the left-side cover (tower model)” on page 48 or“Removing the cover (rack model)” on page 49).2. Locate switch block 2 (SW2) on the processor board (see “Processor-boardcomponent locations” on page 101).3. Set switch 1 on switch block 2 to ON to enable BIOS recovery mode.4. Insert the BIOS flash diskette into the diskette drive.5. Restart the server.The Recovery Boot screen will appear. A progress report, Loading data fromdiskette xx%, is displayed. When programming is underway, a furtherprogress report, Programming block n of 7 yy%, is displayed. When recoveryis complete, Recovery complete, remove the diskette and return boot blockswitch to the off position before rebooting..6. Remove the flash diskette from the diskette drive.7. Turn off the server.8. Set switch 1 on switch block 2 (SW2) to OFF to return to normal startup mode.9. Restart the server. The system should start up normally.Diagnostic error message tablesError messages indicate that a problem exists; they are not intended to be used toidentify a failing part. Troubleshooting and servicing of complex problems indicatedby error messages should be performed by trained service personnel.Sometimes the first error to occur causes additional errors. In this case, the serverdisplays more than one error message. Always follow the suggested actioninstructions for the first error message that appears.“Running diagnostic programs” on page 111 gives instructions for running thediagnostic programs.The following pages contain the error codes that you might receive in the diagnosticprogram detailed test log and summary log when running the diagnostic programsfor your server.Chapter 6. Solving problems 125