Sun Microsystems 1500 Guida
Sun Microsystems, Inc.
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Santa Clara, CA 95054 U.S.A.
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Sun Blade™ 1500
Service, Diagnostics, and
Troubleshooting Manual
Part No. 816-7564-10
April 2003, Revision A
EXAMPLE DOCUMENT
Chapter 11 Replacing the Motherboard and Associated Components 11-3
FIGURE 11-1 DIMM Location and Identification
Depending upon the configuration of your workstation, you can either add or
replace memory. In either case, the new DIMMs must meet the Sun workstation
requirements. TABLE 11-1 lists the acceptable DIMM pair configurations.
When your workstation boots up, the OpenBoot PROM checks for compatible
memory modules. Refer to “OpenBoot PROM” on page 8-1 for additional
information.
If you are not removing an existing DIMM, proceed to “Installing DIMMs” on
page 11-8.
11.1.2 Removing DIMMs
1. Power off the system, open and position the chassis.
Refer to:
■“Powering Off the Workstation” on page 10-4
TABLE 11-1 DIMM Configurations
Memory Installed DIMMs Configuration
512 MB memory 2 x 256MB DIMMs Standard
1GB memory 2 x 512MB DIMMs Standard
2GB memory 2 x 1GB DIMMs Optional
DIMM DIMM0
DIMM1
DIMM2
DIMM3
DIMM gold edge
DIMM ejector levers (8)
DIMM slots (4)
Chapter 13 Replacing Chassis Components 13-15
You can also view an animated version of these instructions by clicking on
this film icon.
13.3.1 Identifying the Rear Fan
The front and rear fans on the Sun Blade 1500 workstation are contained in green
brackets. Both fans must be operating to adequately cool the components in a closed
chassis. Both fans are connected to the motherboard with a cable that carries power
and signal. FIGURE 13-14 shows the location of and identifies the rear fan.
Note – Though similar in appearance, the front and rear fan brackets are not
interchangeable.
FIGURE 13-14 Rear Fan Location and Identification
Catch
Gap
Gap
Tabs (4)
Latch
Connector
FAN1 SYS
12-16 Sun Blade 1500 Service, Diagnostics, and Troubleshooting Manual • April 2003
FIGURE 12-13 Smart Card Reader Location and Identification
12.3.2 Removing the Smart Card Reader
1. Power off the system, open the chassis, and remove the bezel.
Refer to:
■“Powering Off the Workstation” on page 10-4
■“Removing the Access Panel” on page 10-12
■“Removing the Bezel” on page 10-14
2. Locate the smart card reader.
The smart card is installed on a smart card reader bracket that fits into the top slot of
the removable media bay. See FIGURE 12-13.
3. Disconnect the interface cable from the motherboard.
The cable is connected on the motherboard at SCR0. See FIGURE 12-14.
Smart card reader
Smart card reader
bracket
Drive rails
Smart card reader
cable
Connector SCR0
Chapter 14 Replacing Internal Cables 14-7
14.2.1 Identifying the DVD-ROM Drive Interface Cable
The DVD-ROM has separate power and interface cables. The power cable is a Y
cable that connects to the motherboard at IDE PWR and the other ends to the hard
drives and DVD-ROM drive. The interface cable connects the DVD-ROM drive to
the motherboard at IDE SEC. The interface cable is a 40-conductor ribbon cable that
is routed through the chassis.FIGURE 14-5 shows the DVD-ROM drive interface cable
connections.
Note – The instructions in this section apply to any removable media drive, such as
a CD-ROM, tape, or DVD-ROM drive.
FIGURE 14-5 DVD-ROM Drive Interface Cable Connection
14.2.2 Removing the DVD-ROM Drive Interface Cable
1. Power off the system and open the chassis.
Refer to:
■“Powering Off the Workstation” on page 10-4
■“Removing the Access Panel” on page 10-12
Connector IDE SEC
DVD-ROM drive
DVD-ROM drive
interface cable
Chapter 14 Replacing Internal Cables 14-15
3. Disconnect the IDE power cables from the upper hard drive HDD0.
See FIGURE 14-12.
FIGURE 14-12 Disconnecting the IDE Power Cable From the Hard Drive(s)
4. If installed, disconnect the IDE power cable from the lower hard drive HDD1.
See FIGURE 14-12.
5. Disconnect the IDE power cable from the DVD-ROM drive.
See FIGURE 14-13.
FIGURE 14-13 Disconnecting the IDE Power Cable From the DVD-ROM Drive
IDE power cable
Connector
IDE PWR
Interface cable
IDE power cable
DVD-ROM
drive
14-10 Sun Blade 1500 Service, Diagnostics, and Troubleshooting Manual • April 2003
14.3 Replacing the Hard Drive Interface
Cable
This section describes removal and installation of the hard drive interface cables.
Topics include:
■“Identifying the DVD-ROM Drive Interface Cable” on page 14-7
■“Removing the DVD-ROM Drive Interface Cable” on page 14-7
■“Installing the DVD-ROM Drive Interface Cable” on page 14-8
14.3.1 Identifying the Hard Drive Interface Cable
The hard drives have separate power and interface cables. Both cables have two
inline connectors to support up to two drives. The power cable is a Y cable that
connects to the motherboard at IDE PWR and the other ends to the hard drives and
DVD-ROM drive. The interface cable connects the hard drives to the motherboard.
The interface cable is an 80-conductor ribbon cable that is routed through the
chassis. FIGURE 14-8 shows the hard drive interface cable connections.
FIGURE 14-8 Hard Drive Interface Cable Connection
Connector IDE PRI
HDD0
HDD1
Hard drive
interface cable
Chapter 11 Replacing the Motherboard and Associated Components 11-5
FIGURE 11-3 Pressing the Catch on the Rear Fan Bracket
4. Slide the duct up until it is flush with the edge of the rear fan bracket.
See FIGURE 11-4.
FIGURE 11-4 Sliding the Duct Up
5. Flip the duct up and over to the back of the chassis, so that it is 180 degrees
opposite of its original position.
See FIGURE 11-5.
Guide rails
Catch
Duct flush
with bracket
Chapter 10 Preparing to Replace Components 10-15
FIGURE 10-9 Bezel Location and Identification
3. Release the lower mounting tabs.
Carefully move the lower pair of mounting tabs apart, and then push them forward
slightly. See FIGURE 10-10.
FIGURE 10-10 Releasing the Bezel Mounting Tabs
As you do this, you should see the bottom of the bezel move slightly away from the
chassis.
Bezel short
Bezel mounting
tabs (4)
tabs (2)
Lower mounting tabs (2)
Middle mounting tabs (2)
11-16 Sun Blade 1500 Service, Diagnostics, and Troubleshooting Manual • April 2003
FIGURE 11-15 Pressing Down on the Clip Latch
b. Slide the clip to unhook the end opposite the latch.
This relieves clip pressure.
c. Rotate the clip away from the CPU fan and heatsink assembly and lift it off the
locking ring.
Set the clip aside. If removing clips separately, repeat from Step a for the other
clip. See FIGURE 11-16.
FIGURE 11-16 Releasing the CPU Fan and Heatsink Assembly Clips
Latch
End tabs (4) Center tab
Clips (2)
Locking ring
Clips (2)
Locking ring
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