HP ProLiant DL20 Gen10 Plus Maintenance And Service Manual page 5

3.29 Removing and replacing the power distribution board
3.30 Power supply replacement
3.30.1 Power supply warnings and cautions
3.30.2 DC power supply warnings and cautions
3.30.3 Removing and replacing a Flexible Slot power supply
3.30.4 Removing and replacing the non-hot-plug power supply
3.31 System battery replacement
3.31.1 System battery information
3.31.2 Removing and replacing the system battery
3.32 Heatsink replacement
3.32.1 Removing the heatsink
3.32.2 Installing the heatsink
3.33 Processor replacement
3.33.1 Processor cautions
3.33.2 Removing the processor
3.33.3 Installing the processor
3.34 System board replacement
3.34.1 Removing the system board
3.34.2 Installing the system board
3.34.3 Re-entering the server serial number and product ID
4 Troubleshooting
4.1 NMI functionality
4.2 Troubleshooting resources
5 Configuration and diagnostic utilities
6 Component identification
6.1 Front panel components
6.1.1 iLO Service Port
6.2 Front panel LEDs and buttons
6.2.1 Server UID LED
6.2.2 Using the UID button to view the Server Health Summary
6.2.3 Front panel LED power fault codes
6.3 Rear panel components
6.4 Rear panel LEDs
6.5 System board components
6.5.1 System maintenance switch descriptions
6.5.2 DIMM slot location
6.5.3 DIMM label identification
6.6 Drive bay numbering
6.7 HPE Basic Drive LED definitions
6.8 PCIe4 slot description
6.9 Riser board components
6.10 M.2 SSD pass-through card components
6.11 HPE NS204i-p NVMe OS Boot Device components
6.12 HPE NS204i-p NVMe OS Boot Device LED definitions