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Changing a power-on or setup password ..................................... 72
Deleting a power-on or setup password ....................................... 73
National keyboard delimiter characters ....................................... 73
Clearing passwords ................................................................... 74
Chassis security ....................................................................................... 74
Smart Cover Sensor (optional) .................................................... 74
Side access panel solenoid lock (HP Z420 Workstation only) ......... 75
Cable lock (optional) ................................................................. 75
Fault notification and recovery .................................................................................. 75
Drive Protection System ............................................................................. 75
ECC fault prediction ................................................................................. 75
Thermal sensors ....................................................................................... 75
Programmable power button .................................................................................... 76
Changing the power button configuration (Windows only) ............................ 76
3 Component Replacement Information and Guidelines ..................................................... 77
Warnings and cautions ........................................................................................................... 78
Service considerations ............................................................................................................ 79
Tools and software requirements ............................................................................... 79
Electrostatic discharge (ESD) information .................................................................... 79
Product recycling ................................................................................................................... 81
Component replacement guidelines .......................................................................................... 81
Battery ................................................................................................................... 81
Cable management ................................................................................................. 82
CPU (processor) and CPU heatsink ............................................................................ 83
Expansion slots ....................................................................................................... 84
Card configuration restrictions for power supplies ........................................ 84
Choosing an expansion card slot ............................................................... 84
HP Z220 SFF Workstation slot identification and description ......................... 85
HP Z220 SFF Workstation installation sequence recommendations ................. 85
HP Z220 CMT Workstation slot identification and description ....................... 86
HP Z220 CMT Workstation installation sequence recommendations ............... 87
HP Z420 Workstation slot identification and description ............................... 88
HP Z420 Workstation installation sequence recommendations ....................... 89
HP Z620 Workstation slot identification and description ............................... 90
HP Z620 Workstation installation sequence recommendations ....................... 91
HP Z820 Workstation slot identification and description ............................... 92
HP Z820 Workstation installation sequence recommendations ....................... 93
Hard disk drives and optical disc drives ..................................................................... 94
Carefully handle hard disk drives ............................................................... 94
Removal and replacement tips ................................................................... 94
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