6.3 Redundant power supply 123
6.3.1 Installing a hot-plug PSU 123
6.3.2 Removing a hot-plug PSU 125
6.3.3 Replacing a hot-plug PSU 128
6.4 Replacing the power distribution board 129
7 Hard disk drive (HDD) / solid state disk (SSD)
135
7.1 Safety notes 135
7.2 Basic information 136
7.3 Handling HDDs or SSDs without installation frame 137
7.3.1 2.5-inch HDD/SSD and 2.5-inch installation frame 137
7.4 2.5-inch HDD/SSD configurations 139
7.4.1 Overview of configurations 139
7.4.1.1 Configuration with up to eight HDD/SSD or PCIe SSD
modules 139
7.4.1.2 Configuration with up to 16 HDD/SSD or PCIe SSD modules 140
7.4.1.3 Configuration with up to 24 HDD/SSD or PCIe SSD modules 141
7.4.2 Installing 2.5-inch HDD/SSD modules 142
7.4.3 Removing 2.5-inch HDD/SSD modules 145
7.4.4 Replacing a 2.5-inch HDD/SSD module 147
7.4.5 Replacing a 8x 2.5-inch HDD backplane 149
7.4.6 Replacing the 24x 2.5-inch HDD backplane and SAS expander
switch board 152
7.4.7 Upgrading configuration from eight to 16 2.5-inch HDDs/SSDs 159
7.4.8 Replacing the SAS expander board 162
8 Fans 167
8.1 Safety notes 167
8.2 Basic information 167
8.3 Replacing a fan module 168
Content
RX4770 M6 Upgrade and Maintenance Manual