Lenovo ThinkStation C20 Hardware Maintenance Manual - ThinkStation C20/C20x - Page 71
Miscellaneous error messages, POST Error Message, Description/Action, Message/Symptom, FRU/Action
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POST Error Message Press TAB to show POST screen Error: Non-System disk or disk error Replace and press any key when ready Description/Action Pressing the TAB key permits the user to toggle between the default POST display screen and a custom POST display screen. The BIOS was unable to find a suitable boot device. Make sure the boot drive is properly connected to the computer. Make sure you have bootable media. Miscellaneous error messages Message/Symptom FRU/Action Changing display colors Display/Monitor Computer will not turn off. See "Hard disk drive boot error" on page 45. 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 37) 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 45. 1. Power Supply 2. System Board Diskette drive in-use light remains on or does not light when drive is active. Blank screen except for flashing cursor. 1. Diskette Drive 2. System Board 3. Diskette Drive Cable 1. System Board 2. Primary Hard Disk Drive 3. Hard Disk Drive Cable Incorrect memory size during POST 1. Run the Memory tests. 2. Memory Module 3. System Board Chapter 8. Symptom-to-FRU Index 65