Sun Microsystems SUN BLADE 150 Manuale utente

Sun Blade™ 150

DIMM Installation Guide

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InstallingDIMMsinthe

SunBlade150System

Verifying the Current DIMM Configuration

Before you start to install additional DIMMs, perform the following

procedures.

1. Reboot your system.

The banner screen is displayed at the top of your monitor screen as

your system reboots (FIGURE 1).

2. Read the banner screen on your monitor to verify the amount of

memory already installed in your system.

Note – The Sun Blade 150™ system reports the CPU as an

UltraSPARC™ IIe processor. The CPU in your system is an

UltraSPARC IIi processor.

FIGURE 1 Banner Screen Example

Supported DIMM Configurations

You can install one, two, three, or four DIMMs.

The first DIMM must be installed in slot 1.

Subsequent DIMMS must be installed in order. Do not leave empty

DIMM slots between filled DIMM slots.

Preparing for Installation

Before installing any components, you must power off the system,

remove the system cover, and attach an antistatic wrist strap.

Powering Off the System

1. Exit from any applications that are running.

2. Choose one of the two power-off methods, orderly or immediate:

■To perform an orderly power off:

a. Press the power switch and immediately release it (FIGURE 2).

Sun Blade 150, UltraSPARC-IIe 650 MHz, Keyboard Present.

OpenBoot 4.6, 128 MB memory installed, Serial #54528.

Ethernet address 8:0:20:1a:b3:c8, Host ID: 7200d500.

The system shutdown menu is displayed.

b. Select Shutdown.

The system performs internal shutdown procedures.

■To perform an immediate power off, press and hold the power

switch for four seconds before releasing it.

Caution – The immediate power-off method does not

perform an orderly shutdown of the operating system and

data might be lost.

3. Verify that the power-indicator LED on the power switch turns

off.

4. Turn off power to the monitor and to all external devices.

Removing the System Cover

1. Disconnect the system power cord to ensure that all power is

removed from the system (FIGURE 2).

2. Disconnect any cables that are attached to external devices, such

as the monitor, keyboard, and mouse.

Caution – Pressing the power switch does not remove all

power from the system. A standby voltage remains in the

power supply. To remove all power from the system, you

must disconnect the system power cord.

3. At the system back panel, remove the two screws that secure the

cover.

4. Slide the cover back to the end of the system chassis and lift the

cover off.

Attaching an Antistatic Wrist Strap

Caution – When handling DIMMs or other internal

components, always wear an antistatic wrist strap to

equalize all electrical potentials within the system.

1. Unwrap the first two folds of the wrist strap and wrap the

adhesive side firmly against your wrist.

2. Peel the liner from the copper foil at the opposite end of the

wrist strap.

3. Attach the copper foil end of the wrist strap to the system chassis

to provide a ground for electrostatic discharge (FIGURE 2).

FIGURE 2 Preparing for DIMM Installation

Power switch

Installing the DIMMs

Note – For maximum performance, the DIMMs in the Sun

Blade 150 system have been specifically designed for it. Do

not use DIMMs from a different system to upgrade or

replace the DIMMs in this system. Verify with your Sun

sales or service representative that the DIMMs you order

have been certified by Sun for the Sun Blade 150 system.

1. Power off the system, remove the cover, and attach an antistatic

wrist strap as described in “Preparing for Installation” on page 2.

Caution – DIMMs are extremely sensitive to static

electricity. Ordinary amounts of static electricity from

clothing or the work environment can destroy or damage

DIMMs.

Caution – Hold DIMMs only by the edges to avoid

damaging them (FIGURE 3).

FIGURE 3 Unpacking the DIMM

2. Push apart the ejection levers at each end of an empty DIMM

connector on the motherboard (FIGURE 5).

3. Unpack the DIMM, holding it only by the edges (FIGURE 3).

Note – When installing additional DIMMs, first fill slot 1

(the connector closest to the motherboard edge), then fill

towards the CPU (FIGURE 4).

4. Position the DIMM in the connector, ensuring that the alignment

notches on the bottom of the DIMM are aligned with the

connector alignment keys (FIGURE 5).

5. Press firmly on both top corners of the DIMM at the same time

until the DIMM is fully seated.

Caution – Seating the DIMM into a slot unevenly can cause

short circuits that damage the system. Ensure that all

contacts engage at the same time. Do not rock the DIMM

into place. You should hear a “click” when the DIMM is

properly seated (FIGURE 5).

6. Verify that the ejection levers close over the notches on both ends

of the DIMM.

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