Table 2. ServerGuide Setup and Installation CDSymptom Suggested actionThe ServerGuide Setup and InstallationCD will not start.v Ensure that the server is supported and has a startable (bootable)DVD-ROM drive.v If the startup (boot) sequence settings have been altered, ensure thatthe DVD-ROM drive is first in the startup sequence.v If more than one DVD-ROM drive is installed, ensure that only one driveis set as the primary drive. Start the CD from the primary drive.The SCSI RAID program cannot view allinstalled drives, or the NOS cannot beinstalled.v Ensure that there are no duplicate SCSI IDs or IRQ assignments.v Ensure that the hard disk drive is connected properly.The Operating System Installationprogram continuously loops.Make more space available on the hard disk.The ServerGuide program will not startyour NOS CD.Ensure that the ServerGuide program supports the NOS CD you have.See the ServerGuide Setup and Installation CD label for a list of supportedNOS versions.The NOS cannot be installed; the optionis not available.Ensure that your server supports the NOS. If the NOS is supported, eitherthere is no logical drive defined (SCSI RAID systems) or the ServerGuideSystem Partition is not present. Run the ServerGuide program, and ensurethat setup is complete.Small computer system interface messagesIf you receive a SCSI error message, see “SCSI error codes” on page 98.Note: If your server does not have a hard disk drive, ignore any message thatindicates that the BIOS is not installed.Diagnostic programs and error messagesThe server diagnostic programs are stored in upgradeable read-only memory(ROM) on the system board. These programs are the primary method of testing themajor components of your server.Diagnostic error messages indicate that a problem exists; they are not intended tobe used to identify a failing part. Troubleshooting and servicing of complexproblems that are indicated by error messages should be performed by trainedservice 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.Error codes that might be displayed are listed at “Diagnostic error codes” on page85.Notes:1. Depending on the server configuration, some of the error codes might notappear when you run the diagnostic programs.2. If diagnostic error codes appear that are not listed in the tables, make sure thatthe server has the latest levels of BIOS, service processor, and ServeRAIDcode installed.14 xSeries 346 Types 8840 and 1880: Hardware Maintenance Manual and Troubleshooting Guide