Lenovo ThinkCentre M50 Hardware Maintenance Manual (HMM) - Page 111
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POST Error Code 217XX If an external device, and power-on LED is off, check external voltages 218XX Check for multi CD tray or jukebox 219XX 24201Y0, 24210Y0 Be sure wrap plug is attached 273XX 27501, 27503, 27506, 27507 27502, 27504, 27510, 27511, 27533, 27534, 27536, 27537 27509 27512 27535 27554 27555, 27556 27557 27558, 27559, 27560, 27561 27562 27563, 27564 275XX 27801 to 27879 27880 to 27889 FRU/Action 1. Rewritable Optical Drive 2. SCSI Adapter or System Board 3. SCSI Cable Changer SCSI Communications Device 1. ISDN/2 Adapter 2. ISDN/2 Wrap Plug 3. ISDN/2 Communications Cable 1. 1 Mbps Micro Channel 2. Infrared LAN Adapter 1. ServerGuard Adapter 2. System Board 3. Riser card ServerGuard Adapter Remove redundant adapters, run the IBM Setup Utility program, then retest. 1. WMSELF.DGS diagnostics file is missing 2. WMSELF.DGS diagnostics file is incorrect 1. 3V Lithium Backup Battery 2. ServerGuard Adapter 1. Internal Temperature out of range 2. ServerGuard Adapter 1. ServerGuard Adapter 2. Power Supply 1. 7.2V NiCad Main Battery Pack 2. ServerGuard Adapter 1. PCMCIA Type II Modem 2. ServerGuard Adapter 1. External Power Control not connected 2. External Power Control 3. ServerGuard Adapter 1. External Power Control 2. ServerGuard Adapter Update Diagnostic Software 1. Personal Dictation System 2. Adapter 3. System Board 1. External FRU (Speaker, Microphone) Chapter 7. Symptom-to-FRU Index 105