Fujitsu PRIMERGY RX2520 M4 User manual

Upgrade and Maintenance Manual - English
FUJITSU Server PRIMERGY RX2520 M4
Upgrade and Maintenance Manual
July 2018

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To ensure a consistently high quality standard and
user-friendliness, this documentation was created to
meet the regulations of a quality management system
which complies with the requirements of the standard
DIN EN ISO 9001:2015.
cognitas. Gesellschaft für Technik-Dokumentation mbH
www.cognitas.de
Copyright 2018 FUJITSU LIMITED
All rights reserved.
Delivery subject to availability; right of technical modifications reserved.
All hardware and software names used are trademarks of their respective manufacturers.
– The contents of this manual may be revised without prior notice.
– Fujitsu assumes no liability for damages to third party copyrights or other rights arising from
the use of any information in this manual.
– No part of this manual may be reproduced in any form without the prior written permission
of Fujitsu.
Microsoft, Windows, Windows Server, and Hyper-V are trademarks or registered trademarks of
Microsoft Corporation in the USA and other countries.
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in the USA and other countries.

RX2520 M4 Upgrade and Maintenance Manual 3
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.

4 Upgrade and Maintenance Manual RX2520 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 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.

RX2520 M4 Upgrade and Maintenance Manual 5
Version history
Issue number Reason for update
1.0 / November 2017 Initial release
2.0 July 2018 Update release

6 Upgrade and Maintenance Manual RX2520 M4

RX2520 M4 Upgrade and Maintenance Manual
Content
Content
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
1.1 Notational conventions . . . . . . . . . . . . . . . . . . . . 24
2 Before you start . . . . . . . . . . . . . . . . . . . . . . . . 25
2.1 Classification of procedures . . . . . . . . . . . . . . . . . 27
2.1.1 Customer Replaceable Units (CRU) . . . . . . . . . . . . . . . 27
2.1.2 Upgrade and Repair Units (URU) . . . . . . . . . . . . . . . . 28
2.1.3 Field Replaceable Units (FRU) . . . . . . . . . . . . . . . . . 29
2.2 Average task duration . . . . . . . . . . . . . . . . . . . . . 30
2.3 Tools you need at hand . . . . . . . . . . . . . . . . . . . . 31
2.4 Documents you need at hand . . . . . . . . . . . . . . . . . 31
3 Important information . . . . . . . . . . . . . . . . . . . . . 33
3.1 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . 33
3.2 ENERGY STAR . . . . . . . . . . . . . . . . . . . . . . . . . 41
3.3 CE conformity . . . . . . . . . . . . . . . . . . . . . . . . . 42
3.4 FCC Class A Compliance Statement . . . . . . . . . . . . . 42
3.5 Environmental protection . . . . . . . . . . . . . . . . . . . 43
4 Basic hardware procedures . . . . . . . . . . . . . . . . . . 45
4.1 Using diagnostics information . . . . . . . . . . . . . . . . 45
4.1.1 Locating the defective server . . . . . . . . . . . . . . . . . . 45
4.1.2 Determining the error class . . . . . . . . . . . . . . . . . . . 46
4.1.2.1 Global Error indicator . . . . . . . . . . . . . . . . . . . . 46
4.1.2.2 Customer Self Service (CSS) indicator . . . . . . . . . . . 46
4.1.3 Locating the defective component . . . . . . . . . . . . . . . . 47
4.1.3.1 Local diagnostic indicators on the front . . . . . . . . . . . 47
4.1.3.2 Local diagnostic indicators on the system board . . . . . . . 47

RX2520 M4 Upgrade and Maintenance Manual
4.2 Shutting down the server . . . . . . . . . . . . . . . . . . . 48
4.3 Disconnecting the power cord . . . . . . . . . . . . . . . . 49
4.4 Getting access to the component . . . . . . . . . . . . . . . 50
4.4.1 Extending the server out of the rack . . . . . . . . . . . . . . . 50
4.4.2 Removing the server from the rack . . . . . . . . . . . . . . . 52
4.4.3 Removing the top cover . . . . . . . . . . . . . . . . . . . . . 54
4.5 Reassembling . . . . . . . . . . . . . . . . . . . . . . . . . 55
4.5.1 Installing the top cover . . . . . . . . . . . . . . . . . . . . . . 55
4.5.2 Installing the server in the rack . . . . . . . . . . . . . . . . . 56
4.5.3 Sliding the server into the rack . . . . . . . . . . . . . . . . . 58
4.6 Connecting the power cord . . . . . . . . . . . . . . . . . . 59
4.7 Switching on the server . . . . . . . . . . . . . . . . . . . . 60
4.8 Handling the air duct . . . . . . . . . . . . . . . . . . . . . . 61
4.8.1 Removing the air duct . . . . . . . . . . . . . . . . . . . . . . 61
4.8.2 Installing the air duct . . . . . . . . . . . . . . . . . . . . . . . 62
4.9 Handling the fan holder . . . . . . . . . . . . . . . . . . . . 63
4.9.1 Removing the fan holder . . . . . . . . . . . . . . . . . . . . . 63
4.9.2 Installing the fan holder . . . . . . . . . . . . . . . . . . . . . 64
4.10 Handling the crossbar . . . . . . . . . . . . . . . . . . . . . 65
4.10.1 Removing the crossbar . . . . . . . . . . . . . . . . . . . . . 65
4.10.2 Installing the crossbar . . . . . . . . . . . . . . . . . . . . . . 66
5 Basic software procedures . . . . . . . . . . . . . . . . . . 67
5.1 Starting the maintenance task . . . . . . . . . . . . . . . . . 67
5.1.1 Suspending BitLocker functionality . . . . . . . . . . . . . . . 67
5.1.2 Disabling the boot watchdog (iRMC S5) . . . . . . . . . . . . . 68
5.1.3 Removing backup and optical disk media . . . . . . . . . . . . 69
5.1.4 Verifying and configuring the backup software solution . . . . . 70
5.1.5 Switching on the ID indicator . . . . . . . . . . . . . . . . . . 70
5.2 Completing the maintenance task . . . . . . . . . . . . . . . 72
5.2.1 Updating or recovering the BIOS and iRMC S5 . . . . . . . . . 72
5.2.1.1 Updating or recovering the BIOS . . . . . . . . . . . . . . 72
5.2.1.2 Updating or recovering the iRMC . . . . . . . . . . . . . . 73
5.2.2 Verifying system information backup/restore . . . . . . . . . . 74
5.2.3 Updating expansion card firmware (iRMC S5) . . . . . . . . . . 76
5.2.4 Enabling Option ROM scan . . . . . . . . . . . . . . . . . . . 77

RX2520 M4 Upgrade and Maintenance Manual
Content
5.2.5 Reconfiguring the backup software solution . . . . . . . . . . . 79
5.2.6 Resetting the boot retry counter . . . . . . . . . . . . . . . . . 79
5.2.6.1 Viewing the boot retry counter . . . . . . . . . . . . . . . . 79
5.2.6.2 Resetting the boot retry counter . . . . . . . . . . . . . . . 80
5.2.7 Resetting the error status after replacing memory modules
or CPUs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
5.2.7.1 Memory modules . . . . . . . . . . . . . . . . . . . . . . . 81
5.2.7.2 CPUs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
5.2.8 Enabling the boot watchdog (iRMC S5) . . . . . . . . . . . . . 84
5.2.9 Enabling replaced components in the BIOS . . . . . . . . . . . 84
5.2.10 Verifying the memory mode . . . . . . . . . . . . . . . . . . . 85
5.2.11 Verifying the system time settings . . . . . . . . . . . . . . . . 86
5.2.12 Viewing and clearing the System Event Log (SEL) . . . . . . . 86
5.2.12.1 Viewing the SEL . . . . . . . . . . . . . . . . . . . . . . . 86
5.2.12.2 Clearing the SEL . . . . . . . . . . . . . . . . . . . . . . . 88
5.2.13 Updating the NIC configuration file in a Linux and VMware
environment . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
5.2.14 Resuming BitLocker functionality . . . . . . . . . . . . . . . . 89
5.2.15 Performing a RAID array rebuild . . . . . . . . . . . . . . . . . 90
5.2.16 Looking up changed MAC/WWN addresses . . . . . . . . . . 91
5.2.16.1 Looking up MAC addresses . . . . . . . . . . . . . . . . . 91
5.2.16.2 Looking up WWN addresses . . . . . . . . . . . . . . . . . 92
5.2.17 Using the Chassis ID Prom Tool . . . . . . . . . . . . . . . . . 93
5.2.18 Configuring LAN teaming . . . . . . . . . . . . . . . . . . . . 94
5.2.18.1 After replacing/upgrading LAN controllers . . . . . . . . . . 94
5.2.18.2 After replacing a system board . . . . . . . . . . . . . . . . 95
5.2.19 Switching off the ID indicator . . . . . . . . . . . . . . . . . . 95
5.2.20 Performing a fan test . . . . . . . . . . . . . . . . . . . . . . 96
6 Power supply unit (PSU) . . . . . . . . . . . . . . . . . . . . 99
6.1 Basic information . . . . . . . . . . . . . . . . . . . . . . . 99
6.1.1 PSU configurations . . . . . . . . . . . . . . . . . . . . . . . 100
6.1.2 Assembly rules . . . . . . . . . . . . . . . . . . . . . . . . . 100
6.2 Redundant power supply . . . . . . . . . . . . . . . . . . . 101
6.2.1 Installing a PSU . . . . . . . . . . . . . . . . . . . . . . . . . 102
6.2.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 102
6.2.1.2 Removing the dummy cover . . . . . . . . . . . . . . . . . 102
6.2.1.3 Installing a PSU . . . . . . . . . . . . . . . . . . . . . . . 103
6.2.1.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 104

Upgrade and Maintenance Manual RX2520 M4
Content
6.2.2 Removing a PSU . . . . . . . . . . . . . . . . . . . . . . . . 104
6.2.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 104
6.2.2.2 Note for servers using CMA (Cable Management Arm) . . . 104
6.2.2.3 Removing a PSU . . . . . . . . . . . . . . . . . . . . . . 107
6.2.2.4 Installing the dummy cover . . . . . . . . . . . . . . . . . 108
6.2.2.5 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 108
6.2.3 Replacing a PSU . . . . . . . . . . . . . . . . . . . . . . . . 109
6.2.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 109
6.2.3.2 Note for servers using CMA (Cable Management Arm) . . . 109
6.2.3.3 Removing the defective PSU . . . . . . . . . . . . . . . . 110
6.2.3.4 Installing the new PSU . . . . . . . . . . . . . . . . . . . 110
6.2.3.5 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 110
6.3 Power distribution board . . . . . . . . . . . . . . . . . . . 111
6.3.1 Installing the power distribution board . . . . . . . . . . . . . 111
6.3.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 111
6.3.1.2 Installing the power distribution board . . . . . . . . . . . . 112
6.3.1.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 114
6.3.2 Removing the power distribution board . . . . . . . . . . . . . 114
6.3.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 114
6.3.2.2 Removing the power distribution board . . . . . . . . . . . 115
6.3.2.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 116
6.3.3 Replacing the power distribution board . . . . . . . . . . . . . 116
6.3.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 116
6.3.3.2 Removing the power distribution board . . . . . . . . . . . 117
6.3.3.3 Installing the power distribution board . . . . . . . . . . . . 117
6.3.3.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 117
7 Hard disk drive (HDD) and solid state drive (SSD) . . . . . 119
7.1 Basic information . . . . . . . . . . . . . . . . . . . . . . . 120
7.2 Handling the HDDs or SSDs without installation frame . . . 121
7.2.1 2.5-inch HDD/SSD and 2.5-inch installation frame . . . . . . . 121
7.2.2 2.5-inch HDD/SSD and 3.5-inch installation frame . . . . . . . 123
7.2.3 3.5-inch HDD and 3.5-inch installation frame . . . . . . . . . . 125
7.3 2.5-inch HDD/SSD configurations . . . . . . . . . . . . . . 127
7.3.1 Configuration with up to eight HDD/SSD modules . . . . . . . 127
7.3.2 Configuration with up to 16 HDD/SSD modules . . . . . . . . 128
7.3.3 Configuration with up to 24 HDD/SSD modules . . . . . . . . 129
7.3.4 Configuration with additional PCIe-SSDs . . . . . . . . . . . . 130
7.3.5 Installing 2.5-inch HDD/SSD modules . . . . . . . . . . . . . 132

RX2520 M4 Upgrade and Maintenance Manual
Content
7.3.5.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 132
7.3.5.2 Removing a 2.5-inch dummy module . . . . . . . . . . . . 132
7.3.5.3 Installing a 2.5-inch HDD/SSD module . . . . . . . . . . . . 133
7.3.5.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 134
7.3.6 Removing 2.5-inch HDD/SSD modules . . . . . . . . . . . . . 135
7.3.6.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 135
7.3.6.2 Removing a 2.5-inch HDD/SSD module . . . . . . . . . . . 136
7.3.6.3 Installing a 2.5-inch dummy module . . . . . . . . . . . . . 136
7.3.6.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 137
7.3.7 Replacing a 2.5-inch HDD/SSD module . . . . . . . . . . . . . 138
7.3.7.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 139
7.3.7.2 Removing the defective 2.5-inch HDD/SSD module . . . . . 139
7.3.7.3 Installing the new 2.5-inch HDD/SSD module . . . . . . . . 139
7.3.7.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 139
7.3.8 Replacing a 8x 2.5-inch HDD backplane . . . . . . . . . . . . 140
7.3.8.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 140
7.3.8.2 Removing the 2.5-inch HDD backplane . . . . . . . . . . . 141
7.3.8.3 Installing a 2.5-inch HDD backplane . . . . . . . . . . . . . 142
7.3.8.4 Connecting a 2.5-inch HDD backplane . . . . . . . . . . . 143
7.3.8.5 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 144
7.3.9 Upgrading from 8x to 16x 2.5-inch HDD/SSD configuration . . . 145
7.3.9.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 145
7.3.9.2 Installing the second 2.5-inch HDD backplane . . . . . . . . 145
7.3.9.3 Installing additional HDD/SSD modules . . . . . . . . . . . 146
7.3.9.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 146
7.3.10 Upgrading from 16x to 24x 2.5-inch HDD/SSD configuration . . 147
7.3.10.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 147
7.3.10.2 Removing the front panel cage . . . . . . . . . . . . . . . . 147
7.3.10.3 Installing the front panel on QRL . . . . . . . . . . . . . . . 147
7.3.10.4 Installing the ID card holder . . . . . . . . . . . . . . . . . 147
7.3.10.5 Installing the third 2.5-inch HDD backplane . . . . . . . . . 148
7.3.10.6 Installing additional HDD/SSD modules . . . . . . . . . . . 148
7.3.10.7 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 148
7.3.11 Installing the SAS expander board . . . . . . . . . . . . . . . 149
7.3.11.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 149
7.3.11.2 Installing the SAS expander board . . . . . . . . . . . . . . 149
7.3.11.3 Installing the SAS expander board holder . . . . . . . . . . 150
7.3.11.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 151
7.3.12 Removing the SAS expander board . . . . . . . . . . . . . . . 152
7.3.12.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 152
7.3.12.2 Removing the SAS expander board holder . . . . . . . . . 152
7.3.12.3 Removing the SAS expander board . . . . . . . . . . . . . 153

Upgrade and Maintenance Manual RX2520 M4
Content
7.3.12.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 153
7.3.13 Replacing the SAS expander board . . . . . . . . . . . . . . 154
7.3.13.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 154
7.3.13.2 Removing the defective SAS expander board . . . . . . . 154
7.3.13.3 Installing the new SAS expander board . . . . . . . . . . . 154
7.3.13.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 154
7.3.14 Upgrading the 4x 2.5-inch PCIe SSD backplane . . . . . . . . 156
7.3.14.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 156
7.3.14.2 Installing a 4x 2.5-inch PCIe SSD backplane . . . . . . . . 156
7.3.14.3 Connecting a 4x 2.5-inch PCIe SSD backplane . . . . . . . 157
7.3.14.4 Installing additional PCIe SSD modules . . . . . . . . . . . 158
7.3.14.5 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 158
7.4 3.5-inch HDD/SSD configurations . . . . . . . . . . . . . . 159
7.4.1 Configuration with up to four HDD modules . . . . . . . . . . 159
7.4.2 Configuration with up to eight HDD modules . . . . . . . . . . 160
7.4.3 Configuration with up to 12 HDD modules . . . . . . . . . . . 161
7.4.4 Installing 3.5-inch HDD modules . . . . . . . . . . . . . . . . 162
7.4.4.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 162
7.4.4.2 Removing a 3.5-inch dummy module . . . . . . . . . . . . 162
7.4.4.3 Installing a 3.5-inch HDD module . . . . . . . . . . . . . . 163
7.4.4.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 164
7.4.5 Removing 3.5-inch HDD modules . . . . . . . . . . . . . . . 165
7.4.5.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 165
7.4.5.2 Removing a 3.5-inch HDD module . . . . . . . . . . . . . 166
7.4.5.3 Installing a 3.5-inch dummy module . . . . . . . . . . . . . 166
7.4.5.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 166
7.4.6 Replacing a 3.5-inch HDD module . . . . . . . . . . . . . . . 167
7.4.6.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 167
7.4.6.2 Removing a defective 3.5-inch HDD module . . . . . . . . 168
7.4.6.3 Installing a new 3.5-inch HDD module . . . . . . . . . . . 168
7.4.6.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 168
7.4.7 Replacing the 3.5-inch HDD backplanes . . . . . . . . . . . . 169
7.4.7.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 169
7.4.7.2 Removing a 3.5-inch HDD backplane . . . . . . . . . . . . 170
7.4.7.3 Installing a 3.5-inch HDD backplane . . . . . . . . . . . . 171
7.4.7.4 Connecting a 3.5-inch HDD backplane . . . . . . . . . . . 173
7.4.7.5 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 173
7.4.8 Upgrading to 8x 3.5-inch HDD configuration . . . . . . . . . . 174
7.4.8.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 174
7.4.8.2 Installing the second 3.5-inch HDD backplane . . . . . . . 174
7.4.8.3 Installing additional HDD/SSD modules . . . . . . . . . . . 175

RX2520 M4 Upgrade and Maintenance Manual
Content
7.4.8.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 175
7.4.9 Replacing the 12x 3.5-inch HDD backplane . . . . . . . . . . . 176
7.4.9.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 176
7.4.9.2 Removing the SAS expander board holder . . . . . . . . . 177
7.4.9.3 Removing the defective 12x 3.5-inch HDD backplane . . . . 178
7.4.9.4 Installing the new 12x 3.5-inch HDD backplane . . . . . . . 179
7.4.9.5 Installing the SAS expander board holder . . . . . . . . . . 181
7.4.9.6 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 182
7.4.10 Replacing the SAS expander board . . . . . . . . . . . . . . . 183
7.4.10.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 183
7.4.10.2 Removing the defective SAS expander board . . . . . . . . 183
7.4.10.3 Installing the new SAS expander board . . . . . . . . . . . 185
7.4.10.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 186
7.4.11 Replacing the connector card . . . . . . . . . . . . . . . . . . 187
7.4.11.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 187
7.4.11.2 Removing the defective connector card . . . . . . . . . . . 187
7.4.11.3 Installing the new connector card . . . . . . . . . . . . . . 188
7.4.11.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 188
8 Fans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
8.1 Basic information . . . . . . . . . . . . . . . . . . . . . . . 190
8.1.1 Numbering of the fan modules . . . . . . . . . . . . . . . . . . 190
8.2 Replacing a fan module . . . . . . . . . . . . . . . . . . . . 192
8.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 192
8.2.2 Removing a defective fan module . . . . . . . . . . . . . . . . 192
8.2.3 Installing a new fan module . . . . . . . . . . . . . . . . . . . 193
8.2.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 193
9 Expansion cards and backup units . . . . . . . . . . . . . . 195
9.1 Basic information . . . . . . . . . . . . . . . . . . . . . . . 196
9.2 Handling slot brackets . . . . . . . . . . . . . . . . . . . . . 198
9.2.1 Installing a slot bracket . . . . . . . . . . . . . . . . . . . . . 198
9.2.2 Removing a slot bracket . . . . . . . . . . . . . . . . . . . . . 200
9.3 Handling SFP+ transceiver modules . . . . . . . . . . . . . 201
9.3.1 Installing the SFP+ transceiver modules . . . . . . . . . . . . 201
9.3.2 Removing the SFP+ transceiver modules . . . . . . . . . . . . 204

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Content
9.4 Expansion cards . . . . . . . . . . . . . . . . . . . . . . . . 207
9.4.1 Installing expansion cards . . . . . . . . . . . . . . . . . . . 207
9.4.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 207
9.4.1.2 Removing the slot cover . . . . . . . . . . . . . . . . . . . 207
9.4.1.3 Installing an expansion card . . . . . . . . . . . . . . . . . 208
9.4.1.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 212
9.4.2 Removing expansion cards . . . . . . . . . . . . . . . . . . . 213
9.4.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 213
9.4.2.2 Removing an expansion card . . . . . . . . . . . . . . . . 213
9.4.2.3 Installing the slot cover . . . . . . . . . . . . . . . . . . . 214
9.4.2.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 214
9.4.3 Replacing expansion cards . . . . . . . . . . . . . . . . . . . 215
9.4.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 215
9.4.3.2 Removing the expansion card . . . . . . . . . . . . . . . . 215
9.4.3.3 Installing the expansion card . . . . . . . . . . . . . . . . 216
9.4.3.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 216
9.4.4 Replacing a TFM . . . . . . . . . . . . . . . . . . . . . . . . 217
9.4.4.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 217
9.4.4.2 Removing the TFM . . . . . . . . . . . . . . . . . . . . . 217
9.4.4.3 Installing the TFM . . . . . . . . . . . . . . . . . . . . . . 219
9.4.4.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 221
9.5 Flash backup unit (FBU) . . . . . . . . . . . . . . . . . . . 222
9.5.1 Installing an FBU . . . . . . . . . . . . . . . . . . . . . . . . 222
9.5.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 222
9.5.1.2 Preparing the FBU02 (EP4x0i) . . . . . . . . . . . . . . . 223
9.5.1.3 Preparing the FBU345 (EP5x0i) . . . . . . . . . . . . . . . 224
9.5.1.4 Installing the FBU . . . . . . . . . . . . . . . . . . . . . . 225
9.5.1.5 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 226
9.5.2 Removing an FBU . . . . . . . . . . . . . . . . . . . . . . . 227
9.5.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 227
9.5.2.2 Removing the FBU with the holder . . . . . . . . . . . . . 228
9.5.2.3 Disconnecting the FBU cable from the FBU . . . . . . . . 229
9.5.2.4 Removing the FBU02 (EP4x0i) from the holder . . . . . . . 229
9.5.2.5 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 230
9.5.3 Replacing an FBU . . . . . . . . . . . . . . . . . . . . . . . 230
9.5.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 230
9.5.3.2 Removing the defective FBU . . . . . . . . . . . . . . . . 230
9.5.3.3 Installing the new FBU . . . . . . . . . . . . . . . . . . . 231
9.5.3.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 231

RX2520 M4 Upgrade and Maintenance Manual
Content
10 Main memory . . . . . . . . . . . . . . . . . . . . . . . . . . 233
10.1 Basic information . . . . . . . . . . . . . . . . . . . . . . . 234
10.1.1 Population rules . . . . . . . . . . . . . . . . . . . . . . . . . 236
10.1.2 Modes of operation . . . . . . . . . . . . . . . . . . . . . . . 237
10.1.2.1 Independent Channel mode . . . . . . . . . . . . . . . . . 237
10.1.2.2 Mirrored Channel mode . . . . . . . . . . . . . . . . . . . 238
10.1.2.3 Rank Sparing mode (Single-Dual Rank Modules) . . . . . . 240
10.1.2.4 Rank Sparing mode (Quad Rank Modules) . . . . . . . . . 241
10.2 Installing memory modules . . . . . . . . . . . . . . . . . . 242
10.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 242
10.2.2 Selecting the memory slot . . . . . . . . . . . . . . . . . . . . 242
10.2.3 Installing a memory module . . . . . . . . . . . . . . . . . . . 242
10.2.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 243
10.3 Removing memory modules . . . . . . . . . . . . . . . . . . 243
10.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 243
10.3.2 Removing a memory module . . . . . . . . . . . . . . . . . . 244
10.3.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 244
10.4 Replacing memory modules . . . . . . . . . . . . . . . . . . 245
10.4.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 245
10.4.2 Removing a defective memory module . . . . . . . . . . . . . 245
10.4.3 Installing a new memory module . . . . . . . . . . . . . . . . 245
10.4.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 245
11 Processor (CPU) . . . . . . . . . . . . . . . . . . . . . . . . 247
11.1 Basic information . . . . . . . . . . . . . . . . . . . . . . . 248
11.2 Upgrading to 2 CPUs configuration . . . . . . . . . . . . . . 251
11.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 251
11.2.2 Removing the socket cover . . . . . . . . . . . . . . . . . . . 252
11.2.3 Installing the CPU and heat sink . . . . . . . . . . . . . . . . . 253
11.2.4 Upgrading the main memory . . . . . . . . . . . . . . . . . . 256
11.2.5 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 257
11.3 Replacing a CPU or heat sink . . . . . . . . . . . . . . . . . 258
11.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 258
11.3.2 Removing the heat sink . . . . . . . . . . . . . . . . . . . . . 259
11.3.3 Removing the CPU . . . . . . . . . . . . . . . . . . . . . . . 260
11.3.4 Applying the thermal paste to the CPU surface . . . . . . . . . 262
11.3.5 Installing the CPU and heat sink . . . . . . . . . . . . . . . . . 263

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Content
11.3.6 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 263
12 Accessible drives . . . . . . . . . . . . . . . . . . . . . . . 265
12.1 Basic informations . . . . . . . . . . . . . . . . . . . . . . 266
12.2 Optical disk drive (ODD) for the 2.5-inch version . . . . . . 267
12.2.1 Installing a ODD . . . . . . . . . . . . . . . . . . . . . . . . 267
12.2.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 267
12.2.1.2 Removing the ODD dummy cover . . . . . . . . . . . . . 268
12.2.1.3 Installing the ODD . . . . . . . . . . . . . . . . . . . . . . 269
12.2.1.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 272
12.2.2 Removing a ODD . . . . . . . . . . . . . . . . . . . . . . . . 272
12.2.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 272
12.2.2.2 Removing the ODD . . . . . . . . . . . . . . . . . . . . . 273
12.2.2.3 Installing the ODD dummy cover . . . . . . . . . . . . . . 275
12.2.2.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 276
12.2.3 Replacing a ODD . . . . . . . . . . . . . . . . . . . . . . . . 276
12.2.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 276
12.2.3.2 Removing the defective ODD . . . . . . . . . . . . . . . . 276
12.2.3.3 Installing the new ODD . . . . . . . . . . . . . . . . . . . 276
12.2.3.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 277
12.3 Optical disk drive (ODD) for the 3.5-inch version . . . . . . 278
12.3.1 Installing a ODD . . . . . . . . . . . . . . . . . . . . . . . . 278
12.3.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 278
12.3.1.2 Removing the ODD dummy cover . . . . . . . . . . . . . 279
12.3.1.3 Installing the ODD . . . . . . . . . . . . . . . . . . . . . . 280
12.3.1.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 283
12.3.2 Removing a ODD . . . . . . . . . . . . . . . . . . . . . . . . 283
12.3.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 283
12.3.2.2 Removing the ODD . . . . . . . . . . . . . . . . . . . . . 284
12.3.2.3 Installing the ODD dummy module . . . . . . . . . . . . . 285
12.3.2.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 286
12.3.3 Replacing a ODD . . . . . . . . . . . . . . . . . . . . . . . . 287
12.3.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 287
12.3.3.2 Removing the defective ODD . . . . . . . . . . . . . . . . 287
12.3.3.3 Installing the new ODD . . . . . . . . . . . . . . . . . . . 287
12.3.3.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 287

RX2520 M4 Upgrade and Maintenance Manual
Content
12.4 LTO drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
12.4.1 Installing a LTO drive . . . . . . . . . . . . . . . . . . . . . . 288
12.4.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 288
12.4.1.2 Removing the air grid . . . . . . . . . . . . . . . . . . . . 289
12.4.1.3 Installing the LTO drive . . . . . . . . . . . . . . . . . . . . 290
12.4.1.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 293
12.4.2 Removing a LTO drive . . . . . . . . . . . . . . . . . . . . . . 294
12.4.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 294
12.4.2.2 Removing the LTO drive . . . . . . . . . . . . . . . . . . . 294
12.4.2.3 Inserting the air grid . . . . . . . . . . . . . . . . . . . . . 297
12.4.2.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 298
12.4.3 Replacing a LTO drive . . . . . . . . . . . . . . . . . . . . . . 299
12.4.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 299
12.4.3.2 Removing the defective LTO drive . . . . . . . . . . . . . . 299
12.4.3.3 Installing the new LTO drive . . . . . . . . . . . . . . . . . 299
12.4.3.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 299
12.5 RDX drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300
12.5.1 Installing a RDX drive . . . . . . . . . . . . . . . . . . . . . . 300
12.5.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 300
12.5.1.2 Removing the air grid . . . . . . . . . . . . . . . . . . . . 301
12.5.1.3 Preparing the RDX drive . . . . . . . . . . . . . . . . . . . 302
12.5.1.4 Installing the RDX drive . . . . . . . . . . . . . . . . . . . 303
12.5.1.5 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 305
12.5.2 Removing a RDX drive . . . . . . . . . . . . . . . . . . . . . 305
12.5.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 305
12.5.2.2 Removing the RDX drive . . . . . . . . . . . . . . . . . . . 306
12.5.2.3 Inserting the air grid . . . . . . . . . . . . . . . . . . . . . 308
12.5.2.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 308
12.5.3 Replacing a RDX drive . . . . . . . . . . . . . . . . . . . . . 309
12.5.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 309
12.5.3.2 Removing the defective RDX drive . . . . . . . . . . . . . 309
12.5.3.3 Installing the new RDX drive . . . . . . . . . . . . . . . . . 309
12.5.3.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 309
13 Front panel . . . . . . . . . . . . . . . . . . . . . . . . . . . 311
13.1 Basic information . . . . . . . . . . . . . . . . . . . . . . . 311
13.2 Front panel module (2.5-inch version) . . . . . . . . . . . . 312
13.2.1 Replacing the front panel module . . . . . . . . . . . . . . . . 312
13.2.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 313

Upgrade and Maintenance Manual RX2520 M4
Content
13.2.1.2 Removing the front panel cage . . . . . . . . . . . . . . . 313
13.2.1.3 Removing the front panel module . . . . . . . . . . . . . . 315
13.2.1.4 Removing cables from the front panel module . . . . . . . 316
13.2.1.5 Installing cables to the front panel module . . . . . . . . . 317
13.2.1.6 Installing the front panel module . . . . . . . . . . . . . . 318
13.2.1.7 Installing the front panel cage . . . . . . . . . . . . . . . . 319
13.2.1.8 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 322
13.3 Front panel module (3.5-inch version) . . . . . . . . . . . . 323
13.3.1 Replacing the front panel module . . . . . . . . . . . . . . . . 323
13.3.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 323
13.3.1.2 Removing the front panel module . . . . . . . . . . . . . . 324
13.3.1.3 Removing cables from the front panel module . . . . . . . 326
13.3.1.4 Installing cables to the front panel module . . . . . . . . . 327
13.3.1.5 Installing the front panel module . . . . . . . . . . . . . . 328
13.3.1.6 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 329
13.4 Front panel on QRL . . . . . . . . . . . . . . . . . . . . . . 330
13.4.1 Replacing the front panel on QRL . . . . . . . . . . . . . . . 330
13.4.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 330
13.4.1.2 Removing the front panel on QRL . . . . . . . . . . . . . . 331
13.4.1.3 Installing the front panel on QRL . . . . . . . . . . . . . . 333
13.4.1.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 335
13.4.2 Replacing the ID card holder . . . . . . . . . . . . . . . . . . 335
13.4.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 335
13.4.2.2 Removing the ID card holder . . . . . . . . . . . . . . . . 336
13.4.2.3 Installing the ID card holder . . . . . . . . . . . . . . . . . 337
13.4.2.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 337
14 Serial interface . . . . . . . . . . . . . . . . . . . . . . . . . 339
14.1 Installing the serial interface . . . . . . . . . . . . . . . . . 339
14.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 339
14.1.2 Breaking out the metal cover . . . . . . . . . . . . . . . . . . 340
14.1.3 Installing the serial interface . . . . . . . . . . . . . . . . . . 340
14.1.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 342
14.2 Removing the serial interface . . . . . . . . . . . . . . . . 343
14.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 343
14.2.2 Removing the serial interface . . . . . . . . . . . . . . . . . . 343
14.2.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 344

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Content
14.3 Replacing the serial interface . . . . . . . . . . . . . . . . . 345
14.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . . 345
14.3.2 Removing the defective serial interface . . . . . . . . . . . . . 345
14.3.3 Installing the new serial interface . . . . . . . . . . . . . . . . 345
14.3.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . . 345
15 System board and components . . . . . . . . . . . . . . . . 347
15.1 Basic information . . . . . . . . . . . . . . . . . . . . . . . 348
15.2 CMOS battery . . . . . . . . . . . . . . . . . . . . . . . . . . 349
15.2.1 Replacing the CMOS battery . . . . . . . . . . . . . . . . . . 349
15.2.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 349
15.2.1.2 Replacing the defective CMOS battery . . . . . . . . . . . 350
15.2.1.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 350
15.3 Trusted Platform Module (TPM) . . . . . . . . . . . . . . . . 351
15.3.1 Installing the TPM . . . . . . . . . . . . . . . . . . . . . . . . 352
15.3.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 352
15.3.1.2 Installing the TPM . . . . . . . . . . . . . . . . . . . . . . 352
15.3.1.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 354
15.3.2 Removing the TPM . . . . . . . . . . . . . . . . . . . . . . . 355
15.3.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 355
15.3.2.2 Removing the TPM . . . . . . . . . . . . . . . . . . . . . . 356
15.3.2.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 358
15.3.3 Replacing the TPM . . . . . . . . . . . . . . . . . . . . . . . 359
15.3.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 359
15.3.3.2 Removing the defective TPM . . . . . . . . . . . . . . . . 360
15.3.3.3 Installing the new TPM . . . . . . . . . . . . . . . . . . . . 360
15.3.3.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 360
15.4 iRMC microSD card . . . . . . . . . . . . . . . . . . . . . . 361
15.4.1 Installing the iRMC microSD card . . . . . . . . . . . . . . . . 361
15.4.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 361
15.4.1.2 Installing the iRMC microSD card . . . . . . . . . . . . . . 361
15.4.1.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 362
15.4.2 Removing the iRMC microSD card . . . . . . . . . . . . . . . 362
15.4.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 362
15.4.2.2 Removing the iRMC microSD card . . . . . . . . . . . . . 363
15.4.2.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . . 363
15.4.3 Replacing the iRMC microSD card . . . . . . . . . . . . . . . 364
15.4.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . . 364
15.4.3.2 Replacing the iRMC microSD card . . . . . . . . . . . . . . 364

Upgrade and Maintenance Manual RX2520 M4
Content
15.4.3.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 364
15.5 M.2 SSD . . . . . . . . . . . . . . . . . . . . . . . . . . . . 365
15.5.1 Installing an M.2 SSD . . . . . . . . . . . . . . . . . . . . . . 365
15.5.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 365
15.5.1.2 Installing the M.2 SSD . . . . . . . . . . . . . . . . . . . . 366
15.5.1.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 367
15.5.1.4 Software configuration . . . . . . . . . . . . . . . . . . . 368
15.5.2 Removing the M.2 SSD . . . . . . . . . . . . . . . . . . . . . 369
15.5.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 369
15.5.2.2 Removing the M.2 SSD . . . . . . . . . . . . . . . . . . . 369
15.5.2.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 370
Ê . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 371
15.5.3 Replacing the M.2 SSD . . . . . . . . . . . . . . . . . . . . . 371
15.5.3.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 371
15.5.3.2 Replacing the M.2 SSD . . . . . . . . . . . . . . . . . . . 371
15.5.3.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 371
15.5.3.4 Software configuration . . . . . . . . . . . . . . . . . . . 372
15.6 Dual microSD 64GB Enterprise . . . . . . . . . . . . . . . . 373
15.6.1 Installing the Dual microSD 64GB Enterprise . . . . . . . . . . 373
15.6.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 373
15.6.1.2 Installing the Dual microSD 64GB Enterprise . . . . . . . . 373
15.6.1.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 376
15.6.2 Removing the Dual microSD 64GB Enterprise . . . . . . . . . 377
15.6.2.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 377
15.6.2.2 Removing the Dual microSD 64GB Enterprise . . . . . . . 377
15.6.2.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 378
15.6.3 Replacing the Dual microSD 64GB Enterprise . . . . . . . . . 379
15.6.3.1 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 379
15.6.3.2 Replacing the Dual microSD 64GB Enterprise . . . . . . . 379
15.6.3.3 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 379
15.7 System board . . . . . . . . . . . . . . . . . . . . . . . . . 380
15.7.1 Replacing the system board . . . . . . . . . . . . . . . . . . 380
15.7.1.1 Preliminary steps . . . . . . . . . . . . . . . . . . . . . . 382
15.7.1.2 Removing the system board . . . . . . . . . . . . . . . . 383
15.7.1.3 Installing the new system board . . . . . . . . . . . . . . . 384
15.7.1.4 Concluding steps . . . . . . . . . . . . . . . . . . . . . . 385