Lenovo ThinkCentre M92z Hardware Maintenance Manual - ThinkCentre M92z (type 3 - Page 69
Miscellaneous error conditions, Error code, POST Error Message, Description/Action, Message/Symptom
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Error code 1820 1962 POST Error Message Description/Action More than one external fingerprint reader are attached. Power off and remove all but the reader that you set up within your main operating system. If more than one external fingerprint reader are connected to a computer, this error message will be displayed to inform you to remove all of the fingerprint keyboards except the one compatible with the fingerprint application on your computer. No operating system found. Press any key to repeat boot sequence. This error occurs only after the POST is completed. Press any key to repeat boot sequence. Miscellaneous error conditions Message/Symptom FRU/Action Changing display colors Display/Monitor Computer will not power-off. See "Hard disk drive boot error" on page 63. 1. Power Switch 2. System Board 3. Riser card, if installed. Computer will not RPL from server 1. Ensure that network is in startup sequence as first device or first device after diskette. 2. Ensure that network adapter is enabled for RPL. 3. Network adapter (Advise network administrator of new MAC address) Computer will not perform a Wake On LAN (if applicable) 1. Check power supply and signal cable connections to network adapter. 2. Ensure that the operating system settings are set to enable Wake on LAN. 3. Ensure Wake On LAN feature is enabled in Setup/Configuration (see "Starting the Setup Utility program" on page 57) 4. Ensure network administrator is using correct MAC address. 5. Ensure no interrupt or I/O address conflicts. 6. Network adapter (advise network administrator of new MAC address) Dead computer. See "Hard disk drive boot error" on page 63. 1. Power Supply 2. System Board Diskette drive in-use light remains on or does not light when drive is active. 1. Diskette Drive 2. System Board 3. Diskette Drive Cable Blank screen except for flashing cursor. 1. System Board 2. Primary Hard Disk Drive 3. Hard Disk Drive Cable Chapter 7. Symptom-to-FRU index 65