April 2006Interpreting rear panel LEDsIntroductionThis section describes LED states visible at the back of the HMS 400 server.Blue LEDThe blue LED in the back of the HMS 400 system is not used in HMS 400.It comes on for only a moment during a server reboot.Interpreting Beep CodesTypes of beep codesThere are three types of beep codes on the HMS 400 server:• BIOS recovery beep codes (during a BIOS recovery procedure)• bootblock error beep codes (for normal operation)• bootblock error 3-beep codes (for normal operation)BIOS recovery beep codesBeeps Error message Description1 Recovery started Start recovery process.2 Recovery boot error Unable to boot from floppy diskdrive or CD-ROM drive. Recoveryprocess will retry.Series of low-pitched singlebeepsRecovery failed Unable to process valid BIOSrecovery images. BIOS alreadypassed control to the operatingsystem and flash utility.2 long high-pitched beepsRecovery complete BIOS recovery succeeded. Readyfor power-down or restart.3 Recovery failed Recovery failed. Disk is notbootable or the disk is notinserted.Bootblock error beep codesNumber ofbeepsError message Error message and conditions1 Refresh Timer Failure The memory refresh circuitry onthe motherboard is faulty.2 Parity Error Parity cannot be reset.3 Boot Block Failure See “Bootblock error 3-beepcodes” on page 89.4 System Timer System timer not operational.5 Processor Failure Processor faultyNortel Hospitality Messaging Server 400 -89-Maintenance Guide
