Fujitsu PRIMERGY TX2550 M4 User manual

Upgrade and Maintenance Manual - English
FUJITSU Server
PRIMERGY TX2550 M4
Upgrade and Maintenance Manual
May 2018

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DIN EN ISO 9001:2008.
cognitas. Gesellschaft für Technik-Dokumentation mbH
www.cognitas.de
Copyright 2018 FUJITSU LIMITED
All rights reserved.
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the use of any information in this manual.
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TX2550 M4 Upgrade and Maintenance Manual
Before reading this manual
For your safety
This manual contains important information for safely and correctly using this
product.
Carefully read the manual before using this product. Pay particular attention to
the accompanying manual "Safety Notes and Regulations" and ensure these
safety notes are understood before using the product. Keep this manual and the
manual "Safety Notes and Regulations" in a safe place for easy reference while
using this product.
Radio interference
This product is a "Class A" ITE (Information Technology Equipment). In a
domestic environment this product may cause radio interference, in which case
the user may be required to take appropriate measures. VCCI-A
Aluminum electrolytic capacitors
The aluminum electrolytic capacitors used in the product's printed circuit board
assemblies and in the mouse and keyboard are limited-life components. Use of
these components beyond their operating life may result in electrolyte leakage
or depletion, potentially causing emission of foul odor or smoke.
As a guideline, in a normal office environment (25°C) operating life is not
expected to be reached within the maintenance support period (5 years).
However, operating life may be reached more quickly if, for example, the
product is used in a hot environment. The customer shall bear the cost of
replacing replaceable components which have exceeded their operating life.
Note that these are only guidelines, and do not constitute a guarantee of
trouble-free operation during the maintenance support period.
High safety use
This product has been designed and manufactured to be used in commercial
and/or industrial areas as a server.
When used as visual display workplace, it must not be placed in the direct field
of view to avoid incommoding reflections (applies only to TX server systems).
The device has not been designed or manufactured for uses which demand an
extremely high level of safety and carry a direct and serious risk of life or body
if such safety cannot be assured.

Upgrade and Maintenance Manual TX2550 M4
These uses include control of nuclear reactions in nuclear power plants,
automatic airplane flight control, air traffic control, traffic control in mass
transport systems, medical devices for life support, and missile guidance
control in weapons systems (hereafter, "high safety use"). Customers should
not use this product for high safety use unless measures are in place for
ensuring the level of safety demanded of such use. Please consult the sales
staff of Fujitsu if intending to use this product for high safety use.
Measures against momentary voltage drop
This product may be affected by a momentary voltage drop in the power supply
caused by lightning. To prevent a momentary voltage drop, use of an AC
uninterruptible power supply is recommended.
(This notice follows the guidelines of Voltage Dip Immunity of Personal
Computer issued by JEITA, the Japan Electronics and Information Technology
Industries Association.)
Technology controlled by the Foreign Exchange and Foreign Trade
Control Law of Japan
Documents produced by Fujitsu may contain technology controlled by the
Foreign Exchange and Foreign Trade Control Law of Japan. Documents which
contain such technology should not be exported from Japan or transferred to
non-residents of Japan without first obtaining authorization in accordance with
the above law.
Harmonic Current Standards
This product conforms to harmonic current standard JIS C 61000-3-2.
Only for Japan: About SATA HDDs
The SATA version of this server supports HDDs with SATA/BC-SATA storage
interfaces. Please note that the usage and operation conditions differ
depending on the type of HDD used.
For more information on the usage and operation conditions of each available
type of HDD, see the following internet address:
http://jp.fujitsu.com/platform/server/primergy/harddisk/
Only for Japan:
Shielded LAN cables should be used in this product.

TX2550 M4 Upgrade and Maintenance Manual
Version history
Issue number Reason for update
1.0 / November 2017 Initial release
2.0 / April 2018 Update: changes from the open topic list, wording
changes agreed with cognitas TM/QA

Upgrade and Maintenance Manual TX2550 M4

TX2550 M4 Upgrade and Maintenance Manual
Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
1.1 Notational conventions . . . . . . . . . . . . . . . . . . . . 26
2 Before you start . . . . . . . . . . . . . . . . . . . . . . . . 27
2.1 Classification of procedures . . . . . . . . . . . . . . . . . 29
2.1.1 Customer Replaceable Units (CRU) . . . . . . . . . . . . . . . 29
2.1.2 Upgrade and Repair Units (URU) . . . . . . . . . . . . . . . . 30
2.1.3 Field Replaceable Units (FRU) . . . . . . . . . . . . . . . . . 31
2.2 Average task duration . . . . . . . . . . . . . . . . . . . . . 32
2.3 Tools you need at hand . . . . . . . . . . . . . . . . . . . . 33
2.4 Documents you need at hand . . . . . . . . . . . . . . . . . 33
3 Important information . . . . . . . . . . . . . . . . . . . . . 37
3.1 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . 37
3.2 CE conformity . . . . . . . . . . . . . . . . . . . . . . . . . 45
3.3 FCC Class A Compliance Statement . . . . . . . . . . . . . 46
3.4 Environmental protection . . . . . . . . . . . . . . . . . . . 47
4 Basic hardware procedures . . . . . . . . . . . . . . . . . . 49
4.1 Using diagnostics information . . . . . . . . . . . . . . . . 49
4.1.1 Locating the defective server . . . . . . . . . . . . . . . . . . 49
4.1.2 Determining the error class . . . . . . . . . . . . . . . . . . . 50
4.1.2.1 Global Error indicator . . . . . . . . . . . . . . . . . . . . 50
4.1.2.2 Customer Self Service (CSS) indicator . . . . . . . . . . . 50
4.1.3 Locating the defective component . . . . . . . . . . . . . . . . 51
4.1.3.1 Local diagnostic indicators on the front . . . . . . . . . . . 51
4.1.3.2 Local diagnostic indicators on the system board . . . . . . . 52
4.2 Shutting down the server . . . . . . . . . . . . . . . . . . . 52
4.3 Disconnecting the power cord . . . . . . . . . . . . . . . . 53

Upgrade and Maintenance Manual TX2550 M4
Contents
4.4 Getting access to the component . . . . . . . . . . . . . . . 54
4.4.1 Rack model . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
4.4.1.1 Extending the server out of the rack . . . . . . . . . . . . . 54
4.4.1.2 Removing the server from the rack . . . . . . . . . . . . . . 56
4.4.1.3 Removing the top cover . . . . . . . . . . . . . . . . . . . . 58
4.4.1.4 Removing the rack front cover . . . . . . . . . . . . . . . . 59
4.4.2 Floorstand model . . . . . . . . . . . . . . . . . . . . . . . . . 62
4.4.2.1 Unlocking the server . . . . . . . . . . . . . . . . . . . . . 62
4.4.2.2 Removing the side cover . . . . . . . . . . . . . . . . . . . 63
4.4.2.3 Removing the drive covers . . . . . . . . . . . . . . . . . . 64
4.4.2.4 Removing the front cover . . . . . . . . . . . . . . . . . . . 65
4.4.3 Removing the system air duct . . . . . . . . . . . . . . . . . . 67
4.5 Reassembling . . . . . . . . . . . . . . . . . . . . . . . . . . 68
4.5.1 Installing the system air duct . . . . . . . . . . . . . . . . . . . 68
4.5.2 Rack model . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
4.5.2.1 Installing the rack front cover . . . . . . . . . . . . . . . . . 69
4.5.2.2 Installing the top cover . . . . . . . . . . . . . . . . . . . . 70
4.5.2.3 Installing the server in the rack . . . . . . . . . . . . . . . . 72
4.5.2.4 Sliding the server into the rack . . . . . . . . . . . . . . . . 74
4.5.3 Floorstand model . . . . . . . . . . . . . . . . . . . . . . . . . 75
4.5.3.1 Installing the front cover . . . . . . . . . . . . . . . . . . . . 75
4.5.3.2 Installing the drive covers . . . . . . . . . . . . . . . . . . . 76
4.5.3.3 Installing the side cover . . . . . . . . . . . . . . . . . . . . 77
4.5.3.4 Locking the server . . . . . . . . . . . . . . . . . . . . . . . 80
4.6 Connecting the power cord . . . . . . . . . . . . . . . . . . . 81
4.7 Switching on the server . . . . . . . . . . . . . . . . . . . . . 82
4.8 Handling riser modules . . . . . . . . . . . . . . . . . . . . . 82
4.8.1 Riser cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
4.8.1.1 Removing the riser card . . . . . . . . . . . . . . . . . . . . 82
4.8.1.2 Installing the riser card . . . . . . . . . . . . . . . . . . . . 83
4.8.2 Riser modules . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
4.8.2.1 Removing the riser module . . . . . . . . . . . . . . . . . . 84
4.8.2.2 Installing the riser module . . . . . . . . . . . . . . . . . . . 85
4.9 Handling PCI air duct . . . . . . . . . . . . . . . . . . . . . . 86
4.9.1 Removing the PCI air duct . . . . . . . . . . . . . . . . . . . . 86
4.9.2 Installing the PCI air duct . . . . . . . . . . . . . . . . . . . . . 87
4.10 Handling crossbar . . . . . . . . . . . . . . . . . . . . . . . . 88
4.10.1 Removing the crossbar . . . . . . . . . . . . . . . . . . . . . . 88
4.10.2 Installing the crossbar . . . . . . . . . . . . . . . . . . . . . . . 89

TX2550 M4 Upgrade and Maintenance Manual
Contents
4.11 Handling fan bridges . . . . . . . . . . . . . . . . . . . . . . 90
4.11.1 Removing the fan bridge with fan modules (high performance
variant) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
4.11.2 Installing the fan bridge with fan modules (high performance
variant) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
4.11.3 Removing the fan bridge (low performance variant) . . . . . . . 92
4.11.4 Installing the fan bridge (low performance variant) . . . . . . . 93
4.12 Handling accessible drive bays . . . . . . . . . . . . . . . . 94
4.12.1 Opening the accessible drive locking bar . . . . . . . . . . . . 94
4.12.1.1 TX2550 M4 (floorstand model) . . . . . . . . . . . . . . . . 94
4.12.1.2 TX2550 M4 (rack model) . . . . . . . . . . . . . . . . . . . 95
4.12.2 Closing the accessible drive locking bar . . . . . . . . . . . . . 96
4.12.2.1 TX2550 M4 (floorstand model) . . . . . . . . . . . . . . . . 96
4.12.2.2 TX2550 M4 (rack model) . . . . . . . . . . . . . . . . . . . 97
4.12.3 Accessible drive filler covers . . . . . . . . . . . . . . . . . . . 98
4.12.3.1 Removing accessible drive filler covers . . . . . . . . . . . 98
4.12.3.2 Installing accessible drive filler covers . . . . . . . . . . . . 99
4.12.4 Accessible drive covers . . . . . . . . . . . . . . . . . . . . . 100
4.12.4.1 Removing accessible drive covers . . . . . . . . . . . . . . 100
4.12.4.2 Installing accessible drive covers . . . . . . . . . . . . . . 101
4.13 Handling the anti-tilt bracket . . . . . . . . . . . . . . . . . 102
4.13.1 Installing the anti-tilt bracket . . . . . . . . . . . . . . . . . . . 102
4.13.2 Removing the anti-tilt bracket . . . . . . . . . . . . . . . . . . 103
5 Basic software procedures . . . . . . . . . . . . . . . . . . 105
5.1 Starting the maintenance task . . . . . . . . . . . . . . . . . 105
5.1.1 Suspending BitLocker functionality . . . . . . . . . . . . . . . 105
5.1.2 Disabling the boot watchdog functionality of ServerView
Operations Manager . . . . . . . . . . . . . . . . . . . . . . 106
5.1.2.1 Viewing boot watchdog settings . . . . . . . . . . . . . . . 106
5.1.2.2 Configuring boot watchdog settings . . . . . . . . . . . . . 107
5.1.3 Removing backup and optical disk media . . . . . . . . . . . . 108
5.1.4 Verifying and configuring the backup software solution . . . . . 109
5.1.5 Switching on the ID indicator . . . . . . . . . . . . . . . . . . 109
5.2 Completing the maintenance task . . . . . . . . . . . . . . . 111
5.2.1 Updating or recovering the BIOS and iRMC . . . . . . . . . . . 111
5.2.1.1 Updating or recovering the BIOS . . . . . . . . . . . . . . 111
5.2.1.2 Updating or recovering the iRMC . . . . . . . . . . . . . . 111
5.2.2 Verifying system information backup/restore . . . . . . . . . . 113

Upgrade and Maintenance Manual TX2550 M4
Contents
5.2.3 Updating expansion card firmware . . . . . . . . . . . . . . . 113
5.2.4 Enabling Option ROM scan . . . . . . . . . . . . . . . . . . . 115
5.2.5 Reconfiguring the backup software solution . . . . . . . . . . 116
5.2.6 Resetting the boot retry counter . . . . . . . . . . . . . . . . 116
5.2.6.1 Viewing the boot retry counter . . . . . . . . . . . . . . . 116
5.2.6.2 Resetting the boot retry counter . . . . . . . . . . . . . . . 117
5.2.7 Resetting the error status after replacing memory modules
or CPUs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
5.2.7.1 Memory modules . . . . . . . . . . . . . . . . . . . . . . 118
5.2.7.2 CPUs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
5.2.8 Enabling SVOM boot watchdog functionality . . . . . . . . . . 121
5.2.9 Enabling replaced components in the BIOS . . . . . . . . . . 121
5.2.10 Verifying the memory mode . . . . . . . . . . . . . . . . . . . 122
5.2.11 Verifying the system time settings . . . . . . . . . . . . . . . 123
5.2.12 Viewing and clearing the System Event Log (SEL) . . . . . . . 123
5.2.12.1 Viewing the SEL . . . . . . . . . . . . . . . . . . . . . . . 123
5.2.12.2 Clearing the SEL . . . . . . . . . . . . . . . . . . . . . . 125
5.2.13 Updating the NIC configuration file in a Linux and VMware
environment . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
5.2.14 Resuming BitLocker functionality . . . . . . . . . . . . . . . . 127
5.2.15 Performing a RAID array rebuild . . . . . . . . . . . . . . . . 128
5.2.16 Looking up changed MAC/WWN addresses . . . . . . . . . . 129
5.2.16.1 Looking up MAC addresses . . . . . . . . . . . . . . . . . 129
5.2.16.2 Looking up WWN addresses . . . . . . . . . . . . . . . . 129
5.2.17 Using the Chassis ID Prom Tool . . . . . . . . . . . . . . . . 130
5.2.18 Configuring LAN teaming . . . . . . . . . . . . . . . . . . . . 131
5.2.18.1 After replacing/upgrading LAN controllers . . . . . . . . . 131
5.2.18.2 After replacing a system board . . . . . . . . . . . . . . . 132
5.2.19 Switching off the ID indicator . . . . . . . . . . . . . . . . . . 132
5.2.20 Performing a fan test . . . . . . . . . . . . . . . . . . . . . . 133
5.2.21 Specifying the chassis model . . . . . . . . . . . . . . . . . . 134
6 Power supply unit (PSU) . . . . . . . . . . . . . . . . . . . 137
6.1 Basic information . . . . . . . . . . . . . . . . . . . . . . . 137
6.1.1 PSU configurations . . . . . . . . . . . . . . . . . . . . . . . 138
6.1.2 Assembly rules . . . . . . . . . . . . . . . . . . . . . . . . . 138
6.2 Redundant power supply . . . . . . . . . . . . . . . . . . . 139
6.2.1 Installing a PSU . . . . . . . . . . . . . . . . . . . . . . . . . 140
6.2.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 140
6.2.1.2 Removing the dummy cover . . . . . . . . . . . . . . . . 140

TX2550 M4 Upgrade and Maintenance Manual
Contents
6.2.1.3 Installing a PSU . . . . . . . . . . . . . . . . . . . . . . . 141
6.2.1.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 142
6.2.2 Removing a PSU . . . . . . . . . . . . . . . . . . . . . . . . 142
6.2.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 142
6.2.2.2 Note for servers using CMA (Cable Management Arm) . . . 142
6.2.2.3 Removing a PSU . . . . . . . . . . . . . . . . . . . . . . . 145
6.2.2.4 Installing the dummy cover . . . . . . . . . . . . . . . . . . 146
6.2.2.5 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 146
6.2.3 Replacing a PSU . . . . . . . . . . . . . . . . . . . . . . . . 147
6.2.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 147
6.2.3.2 Note for servers using CMA (Cable Management Arm) . . . 147
6.2.3.3 Removing the defective PSU . . . . . . . . . . . . . . . . 148
6.2.3.4 Installing the new PSU . . . . . . . . . . . . . . . . . . . . 148
6.2.3.5 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 148
6.3 Power distribution board . . . . . . . . . . . . . . . . . . . 149
6.3.1 Installing the power distribution board . . . . . . . . . . . . . . 149
6.3.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 149
6.3.1.2 Installing the power distribution board . . . . . . . . . . . . 150
6.3.1.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 152
6.3.2 Removing the power distribution board . . . . . . . . . . . . . 152
6.3.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 152
6.3.2.2 Removing the power distribution board . . . . . . . . . . . 153
6.3.2.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 154
6.3.3 Replacing the power distribution board . . . . . . . . . . . . . 155
6.3.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 155
6.3.3.2 Removing the power distribution board . . . . . . . . . . . 155
6.3.3.3 Installing the power distribution board . . . . . . . . . . . . 155
6.3.3.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 155
7 Hard disk drive (HDD) / solid state drive (SSD) . . . . . . . . 157
7.1 Basic information . . . . . . . . . . . . . . . . . . . . . . . 158
7.2 Handling HDDs or SSDs without installation frame . . . . . 160
7.2.1 2.5-inch HDD/SSD and 2.5-inch installation frame . . . . . . . 160
7.2.2 2.5-inch HDD/SSD and 3.5-inch installation frame . . . . . . . 162
7.2.3 3.5-inch HDD and 3.5-inch installation frame . . . . . . . . . . 164
7.3 2.5-inch HDD/SSD configurations . . . . . . . . . . . . . . . 166
7.3.1 Backplane overviews . . . . . . . . . . . . . . . . . . . . . . 166
7.3.2 Configuration with up to eight HDDs/SSDs . . . . . . . . . . . 170
7.3.3 Configuration with up to 16 HDDs/SSDs . . . . . . . . . . . . 171

Upgrade and Maintenance Manual TX2550 M4
Contents
7.3.4 Configuration with up to 24 HDDs/SSDs with HDD
extension box . . . . . . . . . . . . . . . . . . . . . . . . . . 173
7.3.5 Configuration with up to 32 HDDs/SSDs with HDD
extension box . . . . . . . . . . . . . . . . . . . . . . . . . . 175
7.3.6 Configuration with additional PCIe-SSDs . . . . . . . . . . . . 177
7.3.7 Installing 2.5-inch HDD/SSD modules . . . . . . . . . . . . . 179
7.3.7.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 179
7.3.7.2 Removing a 2.5-inch HDD/SSD dummy module . . . . . . 179
7.3.7.3 Installing a 2.5-inch HDD/SSD module . . . . . . . . . . . 180
7.3.7.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 181
7.3.8 Removing 2.5-inch HDD/SSD modules . . . . . . . . . . . . . 181
7.3.8.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 182
7.3.8.2 Removing a 2.5-inch HDD/SSD module . . . . . . . . . . 183
7.3.8.3 Installing a 2.5-inch HDD/SSD dummy module . . . . . . . 183
7.3.8.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 183
7.3.9 Replacing a 2.5-inch HDD/SSD module . . . . . . . . . . . . 184
7.3.9.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 185
7.3.9.2 Removing a 2.5-inch HDD/SSD module . . . . . . . . . . 185
7.3.9.3 Installing a 2.5-inch HDD/SSD module . . . . . . . . . . . 185
7.3.9.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 185
7.3.10 Replacing a 2.5-inch HDD SAS backplane . . . . . . . . . . 185
7.3.10.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 186
7.3.10.2 Removing the 2.5-inch HDD bay top cover . . . . . . . . . 186
7.3.10.3 Removing a 2.5-inch HDD/SSD SAS backplane . . . . . . 189
7.3.10.4 Installing a 2.5-inch HDD/SSD SAS backplane . . . . . . . 191
7.3.10.5 Installing the 2.5-inch HDD bay top cover . . . . . . . . . . 193
7.3.10.6 Connecting cables . . . . . . . . . . . . . . . . . . . . . . 195
7.3.10.7 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 196
7.3.11 Replacing a 2.5-inch HDD SAS backplane (configuration with up to
32 HDD/SSD modules) . . . . . . . . . . . . . . . . . . . . . 196
7.3.11.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 196
7.3.11.2 Removing a SAS backplane and the SAS expander board holder
197
7.3.11.3 Installing a SAS backplane . . . . . . . . . . . . . . . . . 202
7.3.11.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 207
7.3.12 Replacing the SAS expander board (configuration with up to 32
HDD/SSD modules) . . . . . . . . . . . . . . . . . . . . . . . 207
7.3.12.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 207
7.3.12.2 Removing the SAS expander board . . . . . . . . . . . . . 207
7.3.12.3 Installing the SAS expander board . . . . . . . . . . . . . 208
7.3.12.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 209

TX2550 M4 Upgrade and Maintenance Manual
Contents
7.3.13 Upgrading from 8x to 16x 2.5-inch HDD/SSD configurations . . 209
7.3.13.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 209
7.3.13.2 Removing the 8x 2.5-inch HDD front panel . . . . . . . . . 210
7.3.13.3 Removing the 2.5-inch HDD bay top cover . . . . . . . . . 210
7.3.13.4 Installing the second 2.5-inch HDD/SSD SAS backplane . . 210
7.3.13.5 Installing the 2.5-inch HDD bay top cover . . . . . . . . . . 211
7.3.13.6 Installing the 16x 2.5-inch HDD front panel . . . . . . . . . 211
7.3.13.7 Installing the expander board . . . . . . . . . . . . . . . . 211
7.3.13.8 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 212
7.4 3.5-inch HDD configurations . . . . . . . . . . . . . . . . . 212
7.4.1 Backplane overviews . . . . . . . . . . . . . . . . . . . . . . 213
7.4.2 Configuration with up to four HDD modules . . . . . . . . . . . 214
7.4.3 Configuration with up to eight HDD modules . . . . . . . . . . 215
7.4.4 Configuration with up to 12 HDD modules . . . . . . . . . . . . 216
7.4.5 Configuration with non-hot-plug HDDs/SSDs . . . . . . . . . . 217
7.4.6 Installing 3.5-inch HDD modules . . . . . . . . . . . . . . . . 218
7.4.6.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 218
7.4.6.2 Removing a 3.5-inch HDD dummy module . . . . . . . . . 218
7.4.6.3 Installing a 3.5-inch HDD module . . . . . . . . . . . . . . 219
7.4.6.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 220
7.4.7 Removing 3.5-inch HDD modules . . . . . . . . . . . . . . . . 220
7.4.7.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 220
7.4.7.2 Removing a 3.5-inch HDD module . . . . . . . . . . . . . . 221
7.4.7.3 Installing a 3.5-inch HDD dummy module . . . . . . . . . . 221
7.4.7.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 222
7.4.8 Replacing a 3.5-inch HDD module . . . . . . . . . . . . . . . 223
7.4.8.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 224
7.4.8.2 Removing the defective 3.5-inch HDD module . . . . . . . 224
7.4.8.3 Installing the new 3.5-inch HDD module . . . . . . . . . . . 224
7.4.8.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 224
7.4.9 Replacing a 3.5-inch HDD SAS backplane . . . . . . . . . . . 225
7.4.9.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 225
7.4.9.2 Removing the 3.5-inch HDD bay top cover . . . . . . . . . 225
7.4.9.3 Removing a 3.5-inch HDD SAS backplane . . . . . . . . . 229
7.4.9.4 Installing a 3.5-inch HDD SAS backplane . . . . . . . . . . 230
7.4.9.5 Installing the 3.5-inch HDD bay top cover . . . . . . . . . . 231
7.4.9.6 Connecting cables to the SAS backplane 1 . . . . . . . . . 233
7.4.9.7 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 233
7.4.10 Upgrading to 8x 3.5-inch HDD configurations . . . . . . . . . . 234
7.4.10.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 234
7.4.10.2 Removing the 3.5-inch HDD bay top cover . . . . . . . . . 234

Upgrade and Maintenance Manual TX2550 M4
Contents
7.4.10.3 Removing the 4x 3.5-inch HDD front panel . . . . . . . . . 235
7.4.10.4 Installing the second 3.5-inch HDD SAS backplane . . . . 236
7.4.10.5 Installing the 8x 3.5-inch HDD front panel . . . . . . . . . . 238
7.4.10.6 Installing the 3.5-inch HDD bay top cover . . . . . . . . . . 238
7.4.10.7 Connecting cables to the SAS backplane 2 . . . . . . . . . 239
7.4.10.8 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 240
7.5 HDD/SSD extension boxes . . . . . . . . . . . . . . . . . . 241
7.5.1 HDD/SSD extension boxes overview . . . . . . . . . . . . . . 241
7.5.1.1 8x 2.5-inch HDD/SSD extension box . . . . . . . . . . . . 241
7.5.1.2 4x 3.5-inch HDD/SSD extension box . . . . . . . . . . . . 241
7.5.2 Installing the 8x 2.5-inch HDD/SSD extension box . . . . . . . 242
7.5.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 242
7.5.2.2 Removing accessible drive dummy covers . . . . . . . . . 242
7.5.2.3 Installing the HDD/SSD backplane . . . . . . . . . . . . . 242
7.5.2.4 Installing the 8x 2.5-inch HDD/SSD extension box . . . . . 243
7.5.2.5 Cabling the 8x 2.5-inch HDD/SSD extension box . . . . . . 245
7.5.2.6 Installing HDD modules into the 8x 2.5-inch HDD/SSD
extension box . . . . . . . . . . . . . . . . . . . . . . . . 246
7.5.2.7 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 246
7.5.3 Removing the 8x 2.5-inch HDD/SSD extension box . . . . . . 246
7.5.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 246
7.5.3.2 Removing the 8x 2.5-inch HDD/SSD extension box . . . . 247
7.5.3.3 Installing accessible drive dummy covers . . . . . . . . . . 248
7.5.3.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 248
7.5.4 Replacing the HDD/SSD backplane on the
8x 2.5-inch HDD/SSD extension box . . . . . . . . . . . . . . 248
7.5.4.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 248
7.5.4.2 Removing the defective HDD/SSD backplane . . . . . . . 249
7.5.4.3 Installing the new HDD/SSD backplane . . . . . . . . . . . 250
7.5.4.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 250
7.5.5 Installing the 4x 3.5-inch HDD extension box . . . . . . . . . . 251
7.5.5.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 251
7.5.5.2 Removing accessible drive dummy covers . . . . . . . . . 251
7.5.5.3 Installing the ultraslim ODD into the HDD extension box . . 251
7.5.5.4 Installing the HDD backplane . . . . . . . . . . . . . . . . 251
7.5.5.5 Installing the 4x 3.5-inch HDD extension box . . . . . . . . 252
7.5.5.6 Cabling the 4x 3.5-inch HDD extension box . . . . . . . . 254
7.5.5.7 Installing HDD modules into the 4x 3.5-inch HDD
extension box . . . . . . . . . . . . . . . . . . . . . . . . 254
7.5.5.8 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 255
7.5.6 Removing the 4x 3.5-inch HDD extension box . . . . . . . . . 255

TX2550 M4 Upgrade and Maintenance Manual
Contents
7.5.6.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 255
7.5.6.2 Removing the 4x 3.5-inch HDD extension box . . . . . . . . 255
7.5.6.3 Installing accessible drive dummy covers . . . . . . . . . . 256
7.5.6.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 257
7.5.7 Replacing the HDD backplane on the 4x 3.5-inch HDD
extension box . . . . . . . . . . . . . . . . . . . . . . . . . . 257
7.5.7.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 257
7.5.7.2 Removing the defective HDD backplane . . . . . . . . . . . 257
7.5.7.3 Installing the new HDD backplane . . . . . . . . . . . . . . 259
7.5.7.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 260
7.6 2.5-inch PCIe SSD . . . . . . . . . . . . . . . . . . . . . . . 261
7.6.1 Adding 2.5-inch PCIe SSD configurations . . . . . . . . . . . . 261
7.6.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 261
7.6.1.2 Installing the PCIe SSD extension box . . . . . . . . . . . . 262
7.6.1.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 264
7.6.2 Replacing the PCIe SSD backplane on the 8x 2.5-inch
PCIe SSD extension box . . . . . . . . . . . . . . . . . . . . 265
7.6.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 265
7.6.2.2 Removing the defective PCIe SSD backplane . . . . . . . . 265
7.6.2.3 Installing the new PCIe SSD backplane . . . . . . . . . . . 268
7.6.2.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 268
7.7 Non-hot-plug 2.5-inch HDD/SSD . . . . . . . . . . . . . . . 269
7.7.1 Replacing a non-hot-plug HDD/SSD . . . . . . . . . . . . . . 269
7.7.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 269
7.7.1.2 Removing the non-hot-plug cage . . . . . . . . . . . . . . 269
7.7.1.3 Removing a non-hot-plug HDD/SSD . . . . . . . . . . . . . 270
7.7.1.4 Installing a non-hot-plug HDD/SSD . . . . . . . . . . . . . 271
7.7.1.5 Installing the non-hot-plug cage . . . . . . . . . . . . . . . 271
7.7.1.6 Connecting the cable to a non-hot-plug HDD/SSD . . . . . 272
7.7.1.7 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 272
7.7.2 Upgrading with non-hot-plug HDDs/SSDs . . . . . . . . . . . . 273
7.7.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 273
7.7.2.2 Upgrading with non-hot-plug HDDs/SSDs . . . . . . . . . . 273
7.7.2.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 274
7.8 SAS expander board . . . . . . . . . . . . . . . . . . . . . . 275
7.8.1 Installing the SAS expander board . . . . . . . . . . . . . . . 275
7.8.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 275
7.8.1.2 Installing the SAS expander board . . . . . . . . . . . . . . 275
7.8.1.3 Installing the SAS expander board holder . . . . . . . . . . 276
7.8.1.4 Connecting cables . . . . . . . . . . . . . . . . . . . . . . 278
7.8.1.5 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 280

Upgrade and Maintenance Manual TX2550 M4
Contents
7.8.2 Removing the SAS expander board . . . . . . . . . . . . . . 280
7.8.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 280
7.8.2.2 Removing the SAS expander board holder . . . . . . . . . 280
7.8.2.3 Removing the SAS expander board . . . . . . . . . . . . . 281
7.8.2.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 281
7.8.3 Replacing the SAS expander board . . . . . . . . . . . . . . 282
7.8.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 282
7.8.3.2 Removing the defective SAS expander board . . . . . . . 282
7.8.3.3 Installing the new SAS expander board . . . . . . . . . . . 282
7.8.3.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 282
8 Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 285
8.1 Basic information . . . . . . . . . . . . . . . . . . . . . . . 286
8.1.1 Numbering of the fan modules (high performance variant) . . . 286
8.2 Replacing a fan module (high performance variant) . . . . 287
8.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 287
8.2.2 Removing the defective system fan module . . . . . . . . . . 287
8.2.3 Installing the new system fan module . . . . . . . . . . . . . . 288
8.2.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 288
8.3 Replacing the fan bridge . . . . . . . . . . . . . . . . . . . 289
8.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 289
8.3.2 Replacing the fan bridge (high performance variant) . . . . . . 289
8.3.2.1 Removing the defective fan bridge . . . . . . . . . . . . . 289
8.3.2.2 Installing the new fan bridge . . . . . . . . . . . . . . . . 289
8.3.3 Replacing the fan bridge (low performance variant) . . . . . . 290
8.3.3.1 Removing the defective fan bridge . . . . . . . . . . . . . 290
8.3.3.2 Installing the new fan bridge . . . . . . . . . . . . . . . . 290
8.3.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 290
9 Expansion cards and backup units . . . . . . . . . . . . . 291
9.1 Basic information . . . . . . . . . . . . . . . . . . . . . . . 292
9.2 Handling slot brackets . . . . . . . . . . . . . . . . . . . . 295
9.2.1 Installing a slot bracket . . . . . . . . . . . . . . . . . . . . . 295
9.2.2 Removing a slot bracket . . . . . . . . . . . . . . . . . . . . 296
9.2.2.1 Removing the slot bracket . . . . . . . . . . . . . . . . . . 296
9.3 Handling SFP+ transceiver modules . . . . . . . . . . . . . 297
9.3.1 Installing SFP+ transceiver modules . . . . . . . . . . . . . . 297

TX2550 M4 Upgrade and Maintenance Manual
Contents
9.3.2 Removing an SFP+ transceiver module . . . . . . . . . . . . . 300
9.4 OCP (Open Compute Project) modules . . . . . . . . . . . . 303
9.4.1 Installing an OCP module . . . . . . . . . . . . . . . . . . . . 304
9.4.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 304
9.4.1.2 Installing the OCP module . . . . . . . . . . . . . . . . . . 304
9.4.1.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 305
9.4.1.4 Software configuration . . . . . . . . . . . . . . . . . . . . 306
9.4.2 Removing the OCP module . . . . . . . . . . . . . . . . . . . 307
9.4.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 307
9.4.2.2 Removing the OCP module . . . . . . . . . . . . . . . . . 308
9.4.2.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 309
9.4.3 Replacing the OCP module . . . . . . . . . . . . . . . . . . . 310
9.4.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 310
9.4.3.2 Removing the defective OCP module . . . . . . . . . . . . 310
9.4.3.3 Installing the new OCP module . . . . . . . . . . . . . . . 310
9.4.3.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 311
9.4.3.5 Software configuration . . . . . . . . . . . . . . . . . . . . 311
9.5 Expansion cards . . . . . . . . . . . . . . . . . . . . . . . . 312
9.5.1 Installing an expansion card . . . . . . . . . . . . . . . . . . . 312
9.5.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 312
9.5.1.2 Removing the slot cover . . . . . . . . . . . . . . . . . . . 312
9.5.1.3 Installing the expansion card . . . . . . . . . . . . . . . . . 313
9.5.1.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 317
9.5.2 Removing an expansion card . . . . . . . . . . . . . . . . . . 318
9.5.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 318
9.5.2.2 Removing the expansion card . . . . . . . . . . . . . . . . 318
9.5.2.3 Installing the slot cover . . . . . . . . . . . . . . . . . . . . 319
9.5.2.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 319
9.5.3 Replacing an expansion card . . . . . . . . . . . . . . . . . . 320
9.5.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 320
9.5.3.2 Removing the expansion card . . . . . . . . . . . . . . . . 321
9.5.3.3 Installing the expansion card . . . . . . . . . . . . . . . . . 321
9.5.3.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 321
9.6 Expansion cards in riser modules . . . . . . . . . . . . . . 322
9.6.1 Installing an expansion card in the riser module . . . . . . . . . 322
9.6.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 322
9.6.1.2 Installing the expansion card . . . . . . . . . . . . . . . . . 323
9.6.1.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 324
9.6.2 Removing an expansion card from the riser module . . . . . . 325
9.6.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 325
9.6.2.2 Removing the expansion card . . . . . . . . . . . . . . . . 325

Upgrade and Maintenance Manual TX2550 M4
Contents
9.6.2.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 326
9.6.3 Replacing an expansion card in the riser module . . . . . . . . 327
9.6.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 327
9.6.3.2 Removing the expansion card . . . . . . . . . . . . . . . . 327
9.6.3.3 Installing the expansion card . . . . . . . . . . . . . . . . 328
9.6.3.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 328
9.6.4 Replacing a riser card . . . . . . . . . . . . . . . . . . . . . . 329
9.6.4.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 329
9.6.4.2 Removing the defective riser card . . . . . . . . . . . . . . 329
9.6.4.3 Installing a new riser card . . . . . . . . . . . . . . . . . . 329
9.6.4.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 330
9.6.5 Replacing a TFM . . . . . . . . . . . . . . . . . . . . . . . . 330
9.6.5.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 330
9.6.5.2 Removing the defective TFM . . . . . . . . . . . . . . . . 330
9.6.5.3 Installing the new TFM . . . . . . . . . . . . . . . . . . . 332
9.7 Flash Backup Units (FBU) . . . . . . . . . . . . . . . . . . 334
9.7.1 Installing a FBU . . . . . . . . . . . . . . . . . . . . . . . . . 334
9.7.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 334
9.7.1.2 Preparing the FBU02 (EP4x0i) . . . . . . . . . . . . . . . 335
9.7.1.3 Preparing the FBU345 (EP5x0i) . . . . . . . . . . . . . . . 336
9.7.1.4 Installing the FBU . . . . . . . . . . . . . . . . . . . . . . 337
9.7.1.5 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 339
9.7.2 Removing an FBU . . . . . . . . . . . . . . . . . . . . . . . 340
9.7.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 340
9.7.2.2 Removing the FBU with the holder . . . . . . . . . . . . . 341
9.7.2.3 Disconnecting the FBU cable from the FBU02 (EP4x0i) . . 342
9.7.2.4 Removing the FBU02 (EP4x0i) from the holder . . . . . . . 342
9.7.2.5 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 343
9.7.3 Replacing an FBU . . . . . . . . . . . . . . . . . . . . . . . 343
9.7.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 343
9.7.3.2 Removing the defective FBU . . . . . . . . . . . . . . . . 343
9.7.3.3 Installing the new FBU . . . . . . . . . . . . . . . . . . . 344
9.7.3.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 344
10 Main memory . . . . . . . . . . . . . . . . . . . . . . . . . 345
10.1 Basic information . . . . . . . . . . . . . . . . . . . . . . . 346
10.1.1 Population rules . . . . . . . . . . . . . . . . . . . . . . . . . 348
10.1.2 Modes of operation . . . . . . . . . . . . . . . . . . . . . . . 349
10.2 Installing memory modules . . . . . . . . . . . . . . . . . . 350

TX2550 M4 Upgrade and Maintenance Manual
Contents
10.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 350
10.2.2 Selecting the memory slot . . . . . . . . . . . . . . . . . . . . 351
10.2.3 Installing a memory module . . . . . . . . . . . . . . . . . . . 351
10.2.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 351
10.3 Removing memory modules . . . . . . . . . . . . . . . . . . 352
10.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 352
10.3.2 Removing a memory module . . . . . . . . . . . . . . . . . . 352
10.3.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 353
10.4 Replacing memory modules . . . . . . . . . . . . . . . . . . 353
10.4.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 353
10.4.2 Removing the defective memory module . . . . . . . . . . . . 353
10.4.3 Installing a new memory module . . . . . . . . . . . . . . . . 354
10.4.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 354
11 Processor (CPU) . . . . . . . . . . . . . . . . . . . . . . . . 355
11.1 Basic information . . . . . . . . . . . . . . . . . . . . . . . 356
11.2 Upgrading to 2 CPUs configuration . . . . . . . . . . . . . . 357
11.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 358
11.2.2 Removing the socket cover . . . . . . . . . . . . . . . . . . . 358
11.2.3 Installing the CPU and heat sink . . . . . . . . . . . . . . . . . 358
11.2.4 Upgrading the main memory . . . . . . . . . . . . . . . . . . 364
11.2.5 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 364
11.3 Replacing a CPU or heat sink . . . . . . . . . . . . . . . . . 365
11.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 365
11.3.2 Removing the heat sink . . . . . . . . . . . . . . . . . . . . . 366
11.3.3 Removing the CPU . . . . . . . . . . . . . . . . . . . . . . . 367
11.3.4 Applying the thermal paste to the CPU surface . . . . . . . . . 369
11.3.5 Installing the CPU and heat sink . . . . . . . . . . . . . . . . . 370
11.3.6 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 370
12 Accessible drives . . . . . . . . . . . . . . . . . . . . . . . 373
12.1 Basic information . . . . . . . . . . . . . . . . . . . . . . . 374
12.2 Installing accessible drives . . . . . . . . . . . . . . . . . . 376
12.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 376
12.2.2 Removing accessible drive dummy covers . . . . . . . . . . . 376
12.2.3 Installing mounting brackets to RDX backup drives . . . . . . . 377

Upgrade and Maintenance Manual TX2550 M4
Contents
12.2.4 Installing an accessible drive . . . . . . . . . . . . . . . . . . 379
12.2.5 Example: Connecting cables to the ODD . . . . . . . . . . . . 381
12.2.5.1 Connecting cables to the LTO drive or the RDX drive . . . . 383
12.2.6 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 384
12.3 Removing accessible drives . . . . . . . . . . . . . . . . . 385
12.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 385
12.3.2 Removing an accessible drive . . . . . . . . . . . . . . . . . 386
12.3.3 Installing accessible drive dummy covers . . . . . . . . . . . 386
12.3.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 387
12.4 Replacing accessible drives . . . . . . . . . . . . . . . . . 387
12.4.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 387
12.4.2 Removing the defective accessible drive . . . . . . . . . . . . 388
12.4.3 Installing the new accessible drive . . . . . . . . . . . . . . . 388
12.4.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 388
12.5 Ultraslim ODD in 4x 3.5-inch HDD extension box . . . . . . 389
12.5.1 Installing the ultraslim ODD . . . . . . . . . . . . . . . . . . . 389
12.5.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 389
12.5.1.2 Installing the ultraslim ODD into the HDD extension box . . 390
12.5.1.3 Installing the 4x 3.5-inch HDD extension box . . . . . . . . 393
12.5.1.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 393
12.5.2 Removing the ultraslim ODD . . . . . . . . . . . . . . . . . . 394
12.5.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 394
12.5.2.2 Removing the 4x 3.5-inch HDD extension box . . . . . . . 394
12.5.2.3 Removing the ultraslim ODD from the extension box . . . . 394
12.5.2.4 Installing the 4x 3.5-inch HDD extension box . . . . . . . . 396
12.5.2.5 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 396
12.5.3 Replacing the ultraslim ODD . . . . . . . . . . . . . . . . . . 396
12.5.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 396
12.5.3.2 Removing the defective ultraslim ODD . . . . . . . . . . . 397
12.5.3.3 Installing the new ultraslim ODD . . . . . . . . . . . . . . 397
12.5.3.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 397
12.6 Ultraslim ODD in ultraslim ODD adapter . . . . . . . . . . . 398
12.6.1 Installing the ultraslim ODD . . . . . . . . . . . . . . . . . . . 398
12.6.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 398
12.6.1.2 Installing the ultraslim ODD into the ultraslim ODD adapter 399
12.6.1.3 Installing the ultraslim ODD adapter . . . . . . . . . . . . 400
12.6.1.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 400
12.6.2 Removing the ultraslim ODD . . . . . . . . . . . . . . . . . . 401
12.6.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 401
12.6.2.2 Removing the ultraslim ODD adapter . . . . . . . . . . . . 401