HP t420 Troubleshooting Guide - Page 33
Numeric Codes and Text Messages continued, Table B-2
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Table B-2 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action 4. If the error persists after replacing memory modules, replace the system board. 214-DIMM Configuration Warning Populated DIMM Configuration is not optimized. Rearrange the DIMMs so that each channel has the same amount of memory. 301-Keyboard Error Keyboard failure. 1. Reconnect keyboard with computer turned off. 2. Check connector for bent or missing pins. 3. Ensure that none of the keys are depressed. 4. Replace keyboard. 510-Flash Screen Image Corrupted Flash Screen image has errors. Reflash the system ROM with the latest BIOS image. 512-Chassis, Rear Chassis, or Front Chassis Fan Chassis, rear chassis, or front chassis fan is not 1. Reseat chassis, rear chassis, or front not Detected connected or may have malfunctioned. chassis fan. 2. Reseat fan cable. 3. Replace chassis, rear chassis, or front chassis fan. 513-Front Chassis fan not detected Front chassis fan is not connected or may have 1. Reseat front chassis fan. malfunctioned. 2. Reseat fan cable. 3. Replace front chassis fan. 912-Computer Cover Has Been Removed Since Computer cover was removed since last system No action required. Last System Startup startup. 921-Device in PCI Express slot failed to initialize There is an incompatibility/problem with this Try rebooting the system. If the error reoccurs, device and the system or PCI Express Link could the device may not work with this system not be retrained to an x1. 1720-SMART Hard Drive Detects Imminent Failure Hard drive is about to fail. (Some hard drives 1. have a hard drive firmware patch that will fix an erroneous error message.) 2. 3. Determine if hard drive is giving correct error message. Run the Drive Protection System test using F2 Diagnostics. Apply hard drive firmware patch if applicable. (Available at http://www.hp.com/support.) Back up contents and replace hard drive. Invalid Electronic Serial Number Electronic serial number is missing. Enter the correct serial number in Computer Setup. Network Server Mode Active and No Keyboard Attached Keyboard failure while Network Server Mode enabled. 1. Reconnect keyboard with computer turned off. 2. Check connector for bent or missing pins. 3. Ensure that none of the keys are depressed. 4. Replace keyboard. POST Numeric Codes and Text Messages 27