Sun Microsystems SUN BLADE 150 User manual

Sun Blade™ 150
DIMM Installation Guide

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1
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.

2
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.
Copyright 1998-2003 Sun Microsystems, Inc. All rights reserved.
OpenBoot 4.6, 128 MB memory installed, Serial #54528.
Ethernet address 8:0:20:1a:b3:c8, Host ID: 7200d500.

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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.
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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).
!

5
FIGURE 2 Preparing for DIMM Installation
Power switch

6
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).
!
!

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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).

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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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