HP Z440 Maintenance and Service Guide - Page 104
Diagnostics and troubleshooting, Screen message, Probable cause, Recommended action
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Screen message Probable cause Recommended action 214-DIMM Configuration Warning DIMMs are not installed correctly (not paired correctly). See the service label on the computer access panel for the correct memory configurations, and reseat the DIMMs accordingly. 301-Keyboard Error Keyboard failure. 1. Reconnect the keyboard with the computer powered off. 2. Connect a keyboard directly to the computer (instead of through a switch box). 3. Be sure that none of the keys are pressed. 4. Replace the keyboard. 303-Keyboard Controller Error I/O board keyboard controller is defective or is not set properly. 1. Reconnect the keyboard with the computer powered off. 2. Connect a keyboard directly to the computer (instead of through a switch box). 3. Replace the system board. 304-Keyboard or System Unit Keyboard failure. Error 1. Reconnect the keyboard with the computer powered off. 2. Connect a keyboard directly to the computer (instead of through a switch box). 3. Be sure that none of the keys are pressed. 4. Replace keyboard. 5. Replace system board. 510-Splash Screen image corrupted Splash Screen image has errors. Update system BIOS/UEFI. 511-CPU Fan not detected Fan is not connected or is defective. 1. Reseat the fan cable. 2. Reseat the fan. 3. Replace the fan. 512-Rear chassis fan not detected Fan missing, disconnected, or defective. 1. Reseat the fan cable. 2. Reseat the fan. 3. Replace the fan. 513-Front Chassis fan not detected Front fan missing, disconnected, or defective. 1. Reseat the fan cable. 2. Reseat the fan. 3. Replace the fan. 514-Power supply wattage insufficient for hardware configuration Computer configuration requires more power than the power supply can provide Reduce the computer power consumption. 515-Power supply fan not detected Power supply fan is disconnected or defective. 1. Reseat the power supply cables. 2. Replace the power supply. 517-Memory fan not detected Memory fan missing, disconnected, or defective. 1. Reseat the fan cable. 2. Reseat the fan. 3. Replace the fan. 94 Chapter 4 Diagnostics and troubleshooting