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Sun Fire X4800 Server Service Manual
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Sun Fire X4800 Server Service Manual Overview

Server and Component Overview

Sun Fire X4800 Server Overview

Component Overviews

Front Panel Indicator Module Overview

Power Supply Overview

Hard Drive and XL Bracket Assembly Overview

Drive Backplane Overview

DIMM Overview

RAID Expansion Module Overview

Fabric Expansion Module Overview

System Battery Overview

CPU and Heatsink Assembly Overview

Internal USB Port Overview

Fan Module Overview

Network Express Module Overview

Service Processor (SP) Module Overview

SP Module Multi Port Cable Overview

PCIe Express Module Overview

AC Power Block Overview

Fan Module Controller Board (FB) Overview

Midplane Overview

Power and Reset

Power Modes

Power Button and Power OK LED

How to Power On the Server

How to Power Off the Server

Controlling Server Power Remotely

Removing and Installing Components

Preparing for Service and Operation

Removal and Installation Procedures

Removing and Installing a Power Supply (CRU)

Removing and Installing a Hard Drive (CRU)

Removing and Installing a Hard Drive Filler

Replacing the Hard Drive Backplane (FRU)

Adding, Removing, and Installing a CMOD (CRU)

CPU Module (CMOD) Designation and Population Rules

Removing and Installing a CMOD Filler

How to Replace the CMOD Battery (CRU)

Removing and Installing DIMMs (CRU)

DIMM Population Rules

Removing and Installing a RAID Expansion Module (CRU)

How to Replace the RAID Expansion Module Battery (CRU)

Removing and Installing a Fabric Expansion Module (CRU)

Replacing a CPU and Heatsink Assembly (FRU)

Removing and Installing a Fan Module (CRU)

Replacing a Fan Module Controller Board (FRU)

Removing and Installing a NEM or a NEM Filler (CRU)

Removing and Installing a PCIe EM (CRU)

Removing and Installing the Service Processor Module (CRU)

Removing and Installing the Multi port Cable

Removing and Installing the Subassembly Module (FRU)

Sun Fire X4800 Server Service Procedures, and Information

Managing FRUID Information

Firmware Information and Procedures

How to Access the BIOS Setup Utility

Updating the CPLD

Component LED Locations and Meanings

Sun Fire X4800 Server Specifications

Physical Specifications

Power Specifications

Environmental Specifications

Index

Midplane Overview

The Sun Fire X4800 server`s midplane resides on the internal (front-facing) side of the Subassembly module (SAM) and is inaccessible unless the SAM is removed. The midplane provides power and signal interconnects between back side server components and the front-end server components. The midplane and the SAM are considered a single unit. To replace the midplane you must replace the SAM.


Note - The SAM is designated as a field-replaceable unit (FRU).


image:An illustration showing the front and back of the SAM.
Legend
1
Rear side (external) of SAM showing the back-end server components.
2
Front side (internal) of SAM showing the midplane interconnect board.

See also: