Lenovo ThinkCentre M55 Hardware Maintenance Manual - Page 76

Diagnostic Error Code 217-28X-XXX 217-29X-XXX Hard Disk Drive (SCSI) error 220-000-XXX Hi-Capacity Cartridge Drive Test Passed 220-XXX-XXX Hi-Capacity Cartridge Drive error 301-XXX-XXX Keyboard error 301-000-XXX Keyboard Test Passed 302-000-XXX Mouse Test Passed 302-XXX-XXX Mouse error 303-000-XXX Joystick Test Passed 303-XXX-XXX Joystick error 305-000-XXX Monitor DDC Test Passed 305-250-XXX Monitor DDC self test failure 415-000-XXXModem Test Passed 415-XXX-XXX Modem error FRU/Action 1. Hard Disk Drive Cable 2. Check power supply voltages 3. Reseat the hard disk drive cable 4. Hard Disk drive (SCSI) 5. SCSI adapter card 6. System board No action 1. Remove the Hi-Capacity Cartridge Drive and re-test the system 1. Keyboard 2. Check and test mouse 3. System board No action No action 1. Mouse 2. Check and test Keyboard 3. System board No action Remove the Joystick and re-test the system No action 1. Run Setup to enable DDC 2. Cable 3. Monitor 4. Video card 5. System board No action Remove the Modem and re-test the system Beep symptoms Beep symptoms are tones or a series of tones separated by pauses (intervals without sound) See the following examples. 1-2-X 4 • One beep • A pause (or break) • Two beeps • A pause (or break) • Any number of breaks Four continuous beeps When a recoverable error occurs during POST, BIOS displays an error code on the video display describing the problem. If a video failure is detected, BIOS also issues a beep code (one long tone followed by two short tones) during POST. 70 Hardware Maintenance Manual