Cisco Systems UCS C420 manual Socket Color, Black

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Chapter 3 Maintaining the Server

Installing or Replacing Server Components

DIMM Population Rules

Observe the following guidelines when installing or replacing DIMMs (see Figure 3-13):

The minimum configuration is one DIMM installed in any of CPU1’s blue sockets (A1, B1, C1, D1).

When populating a channel, fill the blue socket first, and then fill the black sockets (1, 2, 3).

The server supports one, two, or three DIMMs per channel for single- or dual-rank DIMMs.

The server supports only one or two quad-rank registered DIMMs (RDIMMs) per channel. The server supports one, two, or three quad-rank load-reduced DIMMs (LRDIMMs) per channel.

The server supports RDIMMs or LRDIMMs. Do not mix RDIMMs and LRDIMMs in a server.

Unregistered DIMMs (UDIMMs) and non-ECC DIMMs are not supported.

For memory mirroring population rules, see Memory Mirroring Mode, page 3-25.

There is no requirement to install DIMMs evenly across all CPUs. However, for optimal performance, you should populate sockets in the order that is shown in Table 3-4for two-CPU systems or Table 3-5for four-CPU systems.

 

 

Table 3-4

DIMM Population for Two-CPU System Optimum Performance

 

 

 

 

 

 

 

 

 

 

 

 

# of DIMMs

 

DIMM

 

 

 

 

 

 

 

Installed

CPU

Socket

Color

 

 

 

 

 

 

 

 

 

First: 1

CPU1

C1

Blue

 

 

 

 

 

 

2

CPU2

E1

Blue

 

 

 

 

 

 

3

CPU1

D1

Blue

 

 

 

 

 

 

4

CPU2

F1

Blue

 

 

 

 

 

 

5

CPU1

B1

Blue

 

 

 

 

 

 

6

CPU2

H1

Blue

 

 

 

 

 

 

7

CPU1

A1

Blue

 

 

 

 

 

 

8

CPU2

G1

Blue

 

 

 

 

 

 

9

CPU1

C2

Black

 

 

 

 

 

 

10

CPU2

E2

Black

 

 

 

 

 

 

11

CPU1

D2

Black

 

 

 

 

 

 

12

CPU2

F2

Black

 

 

 

 

 

 

13

CPU1

B2

Black

 

 

 

 

 

 

14

CPU2

H2

Black

 

 

 

 

 

 

15

CPU1

A2

Black

 

 

 

 

 

 

16

CPU2

G2

Black

 

 

 

 

 

 

17

CPU1

C3

Black

 

 

 

 

 

 

18

CPU2

E3

Black

 

 

 

 

 

 

19

CPU1

D3

Black

 

 

 

 

 

 

20

CPU2

F3

Black

 

 

 

 

 

 

21

CPU1

B3

Black

 

 

 

 

 

 

22

CPU2

H3

Black

 

 

 

 

 

 

23

CPU1

A3

Black

 

 

 

 

 

 

 

 

 

Last: 24

CPU2

G3

Black

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cisco UCS C420 Server Installation and Service Guide

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OL-27640-01

 

 

 

 

 

3-23

 

 

 

 

 

 

 

 

Image 57
Contents Americas Headquarters Cisco UCS C420 Server Installation and Service GuidePage N T E N T S Special Considerations for Cisco UCS Virtual Interface Cards For More Information C-6 OL-24342-01 Audience OrganizationChapter Title Description Bewaar Deze Instructies ConventionsWarnung Wichtige Sicherheitshinweise Avvertenza Importanti Istruzioni Sulla SicurezzaAviso Instruções Importantes DE Segurança Guarde Estas Instrucciones GEM Disse Anvisninger Xii Xiii Documentation Feedback Related DocumentationOverview of the Cisco UCS C420 Server 2shows the rear panel features of the server Standard 1lists the features of the serverCisco UCS C420 Server Features Statement Installing the ServerUnpacking and Inspecting the Server Server Documentation Power cord up to two KVM cableInstallation Guidelines Preparing for Server InstallationSlide Rail Adjustment Range Rack RequirementsEquipment Requirements This section describes how to install the server in a rack Installing the Server In a RackInserting the Server into the Slide Rails Attaching the Cable Management Arm Initial Server Setup Connecting and Powering On the Server Standalone ModeThis section includes the following topics Installing the Server Initial Server Setup OL-27640-01 NIC Modes and NIC Redundancy Settings Updating the Bios and Cimc Firmware System Bios and Cimc FirmwareAccessing the System Bios DIP Switch Location on the I/O Riser Service DIP SwitchIf These Steps do not Recover the Bios Using the Bios Recovery DIP SwitchInstalling the Server Service DIP Switch Server Configuration Utility Server Monitoring and Management ToolsCisco Integrated Management Interface Front-Panel LEDs Status LEDs and ButtonsLED Name State Rear-Panel LEDs and Buttons Rear-Panel LEDs and ButtonsRear-Panel LED States LED Name State LED Name State Internal Diagnostic LEDsPreparing for Server Component Installation Shutting Down and Powering Off the ServerRequired Equipment Release buttons Front cover panel Removing and Replacing the Server Top CoverSee also -23 on page 3-40for details Replaceable Component LocationsColor-Coded Touch Points Installing or Replacing Server ComponentsDrive Population Guidelines Replacing Hard Drives or Solid State DrivesRelease button Drive tray securing screws Ejector lever Drive Replacement ProcedureDrive Bay Assembly and Transition Card Two Versions Replacing a Modular Drive Bay AssemblyOL-27640-01 Removing and Replacing the Drive-Bay Module FAN Replacing Fan Modules11 Removing and Replacing Fan Modules Replacing a Fan Tray 12 Removing and Replacing a Fan Tray Dimm Performance Guidelines and Population Rules Replacing DIMMsCPU Black Socket Color# of DIMMs Memory Mirroring Mode Dimm Replacement Procedure Replacing CPUs and Heatsinks Open the hinged CPU cover plate. See Figure CPU Replacement Procedure14 CPU Retaining Latches 16 Removing or Inserting a CPU Icon. See -14 on 18 Thermal Grease Application Pattern Replacing the Motherboard RTC Battery 19 Removing and Replacing the Motherboard RTC Battery Replacing a PCIe Riser Assembly 20 Removing and Replacing the PCIe Riser Assembly 21 I/O Riser, Including SD Card Slots Replacing an I/O Riser22 Removing and Replacing an I/O Riser Riser in designated motherboard socket Riser securing screwReplacing an Internal SD Card PCIe Slots Replacing a PCIe CardElectrical Card Length1 Slot Number Lane Width Connector LengthNCSI3 Support Primary Slot Secondary Slot Alternate Slots24 PCIe Riser Assembly Side View PCIe card socket on PCIe riser assembly Card retaining clipReplacing a PCIe Card in a Motherboard Slot 25 Hinged PCIe Card Retainer on Rear of Chassis Minimum Firmware for Nexus OS on an Server VICs Mode Firmware Integration Fabric InterconnectSupported Cisco Card NIC Use With UCS Upstream NexusResolving Insufficient Memory Space to Execute Option ROMs Resolving Insufficient 16-Bit I/O Space 27 vNIC Properties Dialog Replacing the Supercap Power Module RAID Backup Unit 28 Removing the Scpm Installing a Trusted Platform Module 29 TPM Socket Location on Motherboard Set TXT Support to Enabled 30 Removing and Replacing Power Supplies Replacing Power SuppliesEnabling or Disabling the Internal USB Port OL-27640-01 Physical Specifications Table A-1lists the physical specifications for the serverDescription Specification Power Specifications Environmental SpecificationsLength Power Cord Description Feet Meters Supported Power Cords and PlugsPower Cord, 250 VAC 10 a MP232 Plug Switzerland Power Cord, 250 VAC 10 a CEI 23-16 Plug ItalyPower Cord, 250 VAC 13 a IEC60320 Plug North America Power Cord, 250 VAC 13 a Nema 6-15 Plug North AmericaCAB-9K10A-AU AC Power Cord IllustrationsCAB-9K10A-EU CAB-9K10A-SW CAB-N5K6A-NA Figure B-13 CAB-C13-CBN, Jumper Power Cord 0.68 m OL-24342-01 Maximum Optional Required Cables1 Controller Style Drives Supported RAID Controllers and Required CablesRAID Levels With expander3 Two controllers with two nonexpandersMixing Drive Types in RAID Groups Supercap Power Modules RAID Backup UnitsRAID Controller Cabling Mix of Drive Types RAID Group Allowed?334371 334646 334373 For More Information Foreign configurations found on adapterPage OL-27640-01 Installation for Cisco UCS Integration OL-24342-01