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Sun Fire X4800 Server Service Manual
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Document Information

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About This Documentation (PDF and HTML)


Change History

Sun Fire X4800 Server Service Manual Overview

Server and Component Overview

Sun Fire X4800 Server Overview

Component Overviews

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


Power Modes

The Sun Fire X4800 server has two power modes, full power mode and standby power mode.

Full power mode is the normal operational mode for the server. When the server enters full power mode, power is supplied to all the server components, the server boots and the operating system (OS) functions. You achieve full power mode by pressing the Power button on the front of the server when the server is in standby power mode. Once the server is operating in full power mode the Power OK LED is on continuously (does not blink).

Standby power is a non-operating mode, in which minimum power is supplied to the components that are required to run the SP. In standby power mode the OS does not boot.

To enter standby power mode, connect the server to an AC supply using the AC power cords, but do not press the front panel Power button. You can also enter standby power mode by powering off the server (from an operational mode) using one of the power off methods.

In standby power mode, the front panel Power LED blinks quickly while the SP is booting, and slowly once the SP has booted. The OK LED on each of the CPU modules (CMODs) blinks while the SP is initializing the CMOD, and remains on when after initialization is finished.

See also: