A & T Internationale Xserve Service manual

 Service Source
© 2006, 2007, 2008 Apple Inc. All rights reserved.
Xserve (Late 2006)
Xserve (Late 2006), Xserve (Early 2008)
Updated: 23 December 2008

ii
 Apple Inc.
© 2007, 2008 Apple Inc. All rights reserved.
Under the copyright laws, this document may not be copied, in whole or in part, without the
written consent of Apple.
Every eort has been made to ensure that the information in this document is accurate. Apple is
not responsible for printing or clerical errors.
Apple
1 Innite Loop
Cupertino, CA 95014-2084
USA
+ 1 408 996 1010
www.apple.com
Apple, the Apple logo, and Xserve are trademarks of Apple Inc., registered in the U.S. and other
countries.

iii
Xserve (Late 2006)
Contents
Take Apart
Manual Updates 7
General Information 8
Apple Drive Module 11
Power Supply 15
Power Supply Blank 17
Opening the Top Cover 20
FB-DIMM Memory 23
PCI-X and PCI-E Riser Cards 26
PCI-X and PCI-E Expansion Cards 28
Battery in Xserve (Late 2006) 32
Battery in Xserve (Early 2008) 34
Optical Drive 36
Airow Duct 39
Fan Array 42
Front Panel Board Cable 45
Backplane-to-Logic Board I/O Cable 47
Optical Drive Cable 50
Locking Mechanism Rod 53
Front Bezel Assembly for Xserve (Late 2006) 56
Front Bezel Assembly for Xserve (Early 2008) 59
Front Bezel Brackets for Xserve (Early 2008) 62

iv
Front Panel Buttons 64
Light Pipe for Xserve (Late 2006) 66
Light Pipe for Xserve (Early 2008) 69
Front Panel Board 71
Drive Interconnect Backplane 74
Xserve RAID Card 78
Power Distribution Board Cable 82
Xserve RAID Card Battery 84
Power Distribution Board 87
Processor Heat Sink 89
Processor 99
Video Mezzanine Card 105
Logic Board 107
Removal Procedure 109
Packing the Used Logic Board: Xserve (Early 2008) Only 113
Replacement Procedure 115
Rear ID Button 117
ID Tab 119
Enclosure 122
Troubleshooting
General Information 125
What’s New 125
Selecting an Alternative Startup Method from the Front Panel 131
Ports 131
Resetting the Logic Board 132
Power-On Self Test (POST) Error Indications 133
Diagnostic LEDs 134
Memory Diagnostic LEDs 137
Power Supply Verication 138
Internal Sensor Locations 138
Front Panel Status Lights 139
Remote Monitoring Software 141
Apple Xserve Diagnostics (AXD) 141

v
Symptom Charts 142
How to Use the Symptom Charts 142
Startup 142
Built-in Video 144
Hard Drive Modules 145
Internal Optical Drive 145
USB Devices 14 6
FireWire Devices 147
Network Problems 148
Views
Internal Views 150
Exploded View 1: Xserve (Late 2006) 150
Exploded View 2: Xserve (Late 2006) 151
Exploded View 1: Xserve (Early 2008) 152
Exploded View 2: Xserve (Early 2008) 153
External Views 154
Front View 154
Rear View 155
Appendix
Reference for Internal Sensors 157

 Service Source
© 2006, 2007, 2008 Apple Inc. All rights reserved.
Take Apart
Xserve (Late 2006)

Xserve (Late 2006) Take Apart — Manual Updates 7
Manual Updates
8 January 2008
Introduced the Xserve (Early 2008) server with the following service manual updates:
Take Apart
Added new “Manual Updates” section•
General Information: Added reference to new model, added front panel image, and revised•
the sections “What’s New” and “A Note on the Images”
Apple Drive Module: Added new model to compatibility table, and added formatting section•
Power Supply Blank: Added all-new procedure•
Battery for Xserve (Early 2008): Added all-new procedure•
Fan Array: Added new foam image•
Backplane-to-Logic Board Cable: Added cable replacement images and steps•
Optical Drive Cable: Added cable replacement images and steps•
Front Bezel for Xserve (Early 2008): Added all-new procedure•
Front Bezel Brackets: Added all-new procedure•
Light Pipe for Xserve (Early 2008): Added all-new procedure•
Processor Heat Sink: Added new handling notes, cautions, and images•
Processor: Added new handling notes, cautions, and images•
Logic Board: Added new handling notes, cautions, packing instructions, and images•
Troubleshooting
General Information: Added features table for model comparison•
Power Supply Redundancy: Replaced image with updated rear panel photograph•
Front Panel Status Lights: Added new image to compare front bezel dierences•
Views
Added Exploded View 1 and 2 for Xserve (Early 2008) model•
Front View: Added new image to show USB port dierence•
Back View: Added new image to show power supply blank•

Xserve (Late 2006) Take Apart — General Information 8
General Information
Overview
The Xserve (Late 2006) and Xserve (Early 2008) models are server computers designed to mount
into a rack; Apple recommends that you remove the server from the rack before replacing or
installing all parts except hard drives. You can replace hard drives while the Xserve is operating
and still in the rack.
The only noticeable external dierence between the Xserve (Late 2006) model and the Xserve
(Early 2008) model is the port next to the system identier button on the front bezel. On the
Xserve (Late 2006) model, it is a FireWire 400 port; whereas on the Xserve (Early 2008) model, it is
a USB port, as shown below.

Xserve (Late 2006) Take Apart — General Information 9
To distinguish the Xserve (Late 2006 or Early 2008) models from the previous Xserve G5 model,
check the rear panel. Xserve (Late 2006) and Xserve (Early 2008) have two power supply bays on
the right side of the rear panel. Previous Xserve G5 models have a single, built-in power supply.
What’s New
See “General Information” in the Troubleshooting chapter for an overview of new features in the
Xserve models.
Front and Rear Panel Ports and Indicators
See “External Views” in the Views chapter for descriptions of all front and rear panel ports,
switches, buttons, and LED indicator lights.
Mounting in a Rack
For information on mounting Xserve (Late 2006) in a rack, see the Xserve (Late 2006) Setup
Guide.
Tools
You will need the following tools:
Phillips #2 scewdriver•
Phillips #1 screwdriver•
Small at-blade screwdriver•
Nylon probe tool or similar plastic pry tool•
Needlenose pliers•
If the Xserve is locked, you will also need the Xserve’s Allen wrench key.
Note: Many take-apart procedures do not require tools because several internal components are
fastened with thumbscrews for easy removal and replacement.
Server Identier Light/Button
The identier light on the Xserve’s front panel turns on when internal sensors or a systems
administrator detects a problem with the Xserve. (The light can also be turned on by pressing
the identier button.) This indicator will help you locate which Xserve in a rack needs servicing.

Xserve (Late 2006) Take Apart — General Information 10
In addition, you can use the identier button to select several alternative startup methods
from the front panel. See “Selecting an Alternative Startup Method from the Front Panel” in the
Troubleshooting chapter.
Note: A duplicate identier light/button is on the Xserve’s back panel.
A Note on the Images
The photos and drawings in this manual were based on a pre-production unit. Your Xserve may
look slightly dierent from the one shown in the images. Likewise, the instructions apply to more
than one Xserve model. Unless exceptions are noted, the steps and sequence are the same for
each model.

Xserve (Late 2006) Take Apart — Hard Drive Module 11
Apple Drive Module
Xserve (Late 2006) includes three hard drive bays on the front panel. Hard drives come as
modules, known as Apple drive modules (ADMs), attached to carriers; they are removed from or
installed in the Xserve as a unit. ADMs have been available from Apple in various capacities for
all Xserve and Xserve RAID models, and in multiple interface types. Xserve G4 and Xserve RAID
use parallel ATA (PATA) ADMs, and Xserve G5 uses serial ATA (SATA) ADMs. Xserve (Late 2006) can
use SATA ADMs, and ADMs with a new, third interface type known as serial attached SCSI (SAS).
It is important to understand ADM forward compatibility and backward compatibility with older
Xserve models, since some combinations of ADM and Xserve or RAID work properly while other
combinations do not. The following table summarizes this compatibility.
Xserve G4 Xserve RAID Xserve G5 Xserve
(Late 2006)
Xserve (Early
2008)
PATA ADM for
Xserve G4
OK OK NO* NO* NO*
SATA ADM for
Xserve G5
NO* NO* OK OK (but not
supported)
OK (but not
supported)
SATA ADM for
Xserve (Late 2006)
NO* NO* OK (but
not
supported)
OK OK
SAS ADM for Xserve
(Late 2006)
NO† NO† NO†† OK OK
* PATA connector is physically dierent from SATA connector so this ADM will not t completely
into slot.
† PATA connector is physically dierent from SAS connector so this ADM will not t completely
into slot.
†† Will t completely into slot but ADM will not work or be recognized by the Xserve. Installing
the SAS ADM should not damage the drive, however.
Note: Blank drive carriers, which may ll some of the hard drive bays, follow the same take-apart
procedure as hard drives. If you are replacing a blank carrier with a drive module, instruct the
Xserve’s administrator to keep the blank for possible future use. Blank carriers must be installed in
all empty bays to maintain proper airow through the Xserve.
Tools
No tools are required for this procedure.

Xserve (Late 2006) Take Apart — Hard Drive Module 12
Backing Up Your Data
Warning: Before replacing the hard drive, make sure you back up all data on the drive.
Preliminary Steps
Before you begin, make sure the drives are in the unlocked position. Also, make sure the drive
being replaced is not in use by any application and is not being shared by the Xserve. (See the
Mac OS X Server documentation for information about shared drives.) To do this, you may need
to rst unmount the drive by using the command-line tools or by dragging the disk icon to the
Trash.
You can replace or install hard drives while the Xserve is running; you do not need to shut down
or open the Xserve rst.
Note: There are two LED indicators on the front of each drive.
Drive module activity light (blue)
Drive module status light (green)
The upper LED shows drive status: a green light indicates the drive is good; a yellow or red•
light indicates the drive should be replaced.
The lower LED shows drive activity: when the blue light is blinking, the system is reading•
from or writing to the drive. To avoid losing data, never remove a drive when the lower LED
is blinking.
Warning: Drives must be in the unlocked position before you attempt to remove a drive. If the
drives are locked, pulling on the drive to remove it could damage the drive handle.

Xserve (Late 2006) Take Apart — Hard Drive Module 13
Part Location
Drive bay 1Drive bay 2Drive bay 3
Procedure
Make sure the drive being replaced is not in use by any application and is not being shared1.
by the Xserve. (See the Mac OS X Server documentation for information about shared drives.)
Unmount the drive (by using the command-line tools or by dragging the volume icon to the2.
Trash).
Press the handle on the front of the drive module so that the handle pops out. Wait for the3.
upper LED on the drive to go out. Then grasp the drive handle, and pull the drive module
out of the Xserve.
Replacement Note: Press and release the handle on the replacement drive to open it, and slide
the module into the bay until it is rmly seated. Then press the handle in ush with the front
panel. The disk status light will turn green to indicate normal operation.

Xserve (Late 2006) Take Apart — Hard Drive Module 14
Formatting the Hard Drive
If you replaced the hard drive with a new one, format the new hard drive by following the steps
presented here:
Start up from the Install Disc that came with your server, and choose the language.1.
From the menu bar, choose Utilities > Disc Utility.2.
To format the primary drive, use the Disc Utility on the Install disc.3.
Click the Partition tab.4.
Click on Options, and verify GUID is selected if this is the startup drive.5.
Name the volume “Macintosh HD.”6.
Apply the change by clicking the Partition tab.7.
Leave the Disc Utility application open, and restore the backed up les from the image you 8.
created before removing the hard drive.

Xserve (Late 2006) Take Apart — Power Supply 15
Power Supply
You can replace or install a power supply from the back panel without removing the server from
the rack. If the Xserve has two power supplies, they are hot-swappable; the Xserve will continue
to operate using only one supply while the second is removed.
Tools
No tools are required for this procedure.
Preliminary Steps
There are no preliminary steps for this procedure.
Part Location
Power supply
bay 2
Power supply
bay 1

Xserve (Late 2006) Take Apart — Power Supply 16
Procedure
Unplug the power cord from the power supply you are removing.1.
Pull the handle to release the power supply and slide it out of the bay.2.
Pull the handle to unlatch the
power supply and remove it.
Replacement Procedure
Press and release to open the handle on the new power supply, slide it all the way into the1.
bay, and then press the handle to seat the power supply and lock it in place.
Slide the power supply in and
press the handle to seat it.
Connect the power cord to the power supply.2.
Note: If the Xserve is already running on a second power supply, the status light on the new
supply turns green to indicate normal operation as it starts sharing the load. If the Xserve is
not turned on, the supply status light blinks green when the power cord is plugged in to an
outlet with power.

Xserve (Late 2006) Take Apart — Power Supply 17
Power Supply Blank
If the server has only one power supply, the other bay is covered by a removable door. Called
a power supply blank, this door keeps the empty bay clean. The power supply blank may be
removed while the server is still in the rack.
Tools
No tools are required for this procedure.
Preliminary Steps
There are no preliminary steps for this procedure.
Part Location

Xserve (Late 2006) Take Apart — Power Supply 18
Procedure
Pull out the handle to swing open the power supply blank.1.
Notice the hook that catches on the inside bottom of the power supply bay.2.

Xserve (Late 2006) Take Apart — Power Supply 19
Open the power supply blank as far as it will go, and then pull out the power supply blank.3.
Replacement Note: Align the hook on the power supply blank with the catch inside the power
supply bay. Close the power supply blank, and press the handle over the bay wall to lock it in
place.

Xserve (Late 2006) Take Apart — Opening the Top Cover 20
Opening the Top Cover
The top cover on this Xserve model does not remain installed in the rack as it did in previous
Xserve G5 models. The entire Xserve enclosure, including its top cover, must be removed
from the rack as a unit before the top cover can be removed to gain access to any internal
components.
Tools
No tools are required for this procedure. You may, however, nd a Phillips screwdriver useful in
releasing the thumbscrews.
Preliminary Steps
Serial Number
Be sure to write down the Xserve’s serial number. If the Xserve’s software must be set up after
service is complete, the serial number will be required for login. The serial number is located on
a pull-out tab at the bottom-center of the rear panel.