User Guide213www.nec-computers.comBeep CodesIf an error occurs during the POST, the server beeps, indicating the type of error.Each number indicates the number of short beeps, and a hyphen indicates a pause. Forexample, the beep interval 1-2-2-3 indicates 1 beep, pause, 2 beeps, pause, 2 beeps,pause, and 3 beeps notifying that the checksum error occurred on ROM.Note: Beep code 1-5-4-2 informs you that AC power supplyis interrupted due to power failure or momentary voltage dropand the system is restarted. This is not an error.Table 29: POST Error Beep CodesBeeps Error Recommended Action1-2 Option ROM initialization error Check that the BIOS SETUP is correctly configured.If the expansion of Option ROM for the additionally installedPCI board is not displayed, check that the PCI board isproperly installed.If the error persists, contact your service representative toreplace the motherboard or PCI board.3-3 ROM checksum error Contact your service representative to replace themotherboard.1-2-2-31-3-1-1 DRAM refresh test error 1. Check that the DIMMs are properly connected.2. Remove the DIMMs once, and then re-install them to checkif it operates normally.3. Contact your service representative to replace the failedDIMM or motherboard.1-3-1-3 Keyboard controller error 1. Check if the keyboard is properly connected.2. Contact your service representative to replace the failedmotherboard.1-3-3-1 No memory or capacity checkerror1. Check that the DIMMs are properly connected.2. Remove the DIMMs once, and then re-install them to checkif it operates normally.3. Contact your service representative to replace the failedDIMM or motherboard.1-3-4-1 DRAM address error1-3-4-3 DRAM test Low Byte error1-4-1-1 DRAM test High Byte error1-5-1-1* CPU startup error Contact your service representative to replace the failed CPUor motherboard.1-5-2-1* No CPU installed2-1-2-3 BIOS ROM copyright test error2-2-3-1 Unexpected interrupt test error
