Contents
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Cisco UCS C420 Server Installation and Service Guide
OL-24342-01
Cisco Integrated Management Interface 3-1
Server Configuration Utility 3-1
Status LEDs and Buttons 3-2
Front-Panel LEDs 3-2
Rear-Panel LEDs and Buttons 3-4
Internal Diagnostic LEDs 3-7
Preparing for Server Component Installation 3-8
Required Equipment 3-8
Shutting Down and Powering Off the Server 3-8
Removing and Replacing the Server Top Cover 3-9
Replaceable Component Locations 3-10
Color-Coded Touch Points 3-11
Installing or Replacing Server Components 3-11
Replacing Hard Drives or Solid State Drives 3-12
Drive Population Guidelines 3-12
Drive Replacement Procedure 3-13
Replacing a Modular Drive Bay Assembly 3-14
Replacing Fan Modules 3-17
Replacing a Fan Tray 3-19
Replacing DIMMs 3-21
DIMM Performance Guidelines and Population Rules 3-21
DIMM Replacement Procedure 3-26
Replacing CPUs and Heatsinks 3-27
Additional CPU-Related Parts To Order With RMA Replacement Motherboards 3-27
CPU Replacement Procedure 3-28
Replacing the Motherboard RTC Battery 3-33
Replacing a PCIe Riser Assembly 3-35
Replacing an I/O Riser 3-37
Replacing an Internal SD Card 3-39
Replacing a PCIe Card 3-40
PCIe Slots 3-40
PCIe Configuration Guide 3-41
Replacing a PCIe Card in a Riser Slot 3-41
Replacing a PCIe Card in a Motherboard Slot 3-43
Special Considerations for Cisco UCS Virtual Interface Cards 3-45
Installing Multiple PCIe Cards and Resolving Limited Resources 3-46
Replacing the Supercap Power Module (RAID Backup Unit) 3-49
Installing a Trusted Platform Module 3-51
Enabling the Intel Trusted Execution Technology Feature For the TPM 3-52
