Hardware replacement procedures
This section provides installation and removal procedures for all serviceable system components.
- Installation Guidelines
 Before installing components in your server, read the installation guidelines.
- Memory module installation rules and order
 Memory modules must be installed in a specific order based on the memory configuration that you implement and the number of processors and memory modules installed in the server.
- Technical rules
 Refer to the below technical rules and limitations when you install the related server components.
- Power on and power off the server
 Follow the instructions in this section to power on and power off the server.
- Server replacement
 Follow instructions in this section to remove and install the server.
- Air baffle replacement
 Follow instructions in this section to remove and install the air baffle.
- Backplane replacement
 Use this information to remove and install a backplane.
- Cable management arm (CMA) replacement (trained technicians only)
 Follow the instructions in this section to remove and install the cable management arm (CMA).
- CMOS battery (CR2032) replacement
 Use this information to remove and install the CMOS battery.
- Datacenter Secure Control Module (DC-SCM) replacement
 Use this information to remove and install the Datacenter Secure Control Module (DC-SCM).
- Fan cage and system fan replacement
 Use this information to remove and install a fan cage and system fan.
- Heat sink Torx T30 nut replacement
 Use this information to remove and install a heat sink Torx T30 nut.
- Hot-swap drive replacement
 Use this information to remove and install a hot-swap drive. You can remove or install a hot-swap drive without turning off the server, which helps you avoid significant interruption to the operation of the system.
- Hot-swap power supply unit replacement
 Use this information to remove and install a hot-swap power supply unit.
- Memory module replacement
 Use the following procedures to remove and install a memory module.
- M.2 cage and M.2 drive replacement
 Use this information to remove and install the an M.2 cage and M.2 drive.
- OCP module replacement
 Use this information to remove and install the OCP module.
- Power input board (PIB) replacement
 Use this information to remove and install the power input board (PIB).
- Processor and heat sink replacement
 Follow the instruction in this section to replace an assembled processor and heat sink, known as a processor-heat-sink module (PHM), a processor, or a heat sink.
- RAID flash power module replacement
 The RAID flash power module protects the cache memory on the installed RAID adapter. You can purchase a RAID flash power module from Lenovo. Use this information to remove and install a RAID flash power module.
- Rear drive assembly replacement
 Use this information to remove and install the rear drive assembly.
- Riser card and PCIe adapter replacement
 Use this information to remove and install a riser card and PCIe adapter.
- System board replacement (trained technicians only)
 Follow instructions in this section to remove and install the system board.
- Top cover replacement
 Follow instructions in this section to remove and install the top cover.
- TPM replacement
 Follow instructions in this section to remove and install TPM.
- VGA cable replacement
 Follow the instructions in this section to remove or install the VGA cable.
- VRoC key replacement
 Follow instructions in this section to remove and install the VRoC key.
- Complete the parts replacement
 Go through the checklist to complete parts replacement
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