H3C UniServer R4900 G3 User Manual page 8

Removing the access panel ································································································· 99
Installing the access panel ································································································ 100
Replacing the security bezel ····································································································· 101
Replacing a SAS/SATA drive ···································································································· 101
Replacing an NVMe drive ········································································································ 102
Replacing a power supply ········································································································ 103
Replacing air baffles ··············································································································· 106
Removing air baffles ········································································································ 106
Installing air baffles ·········································································································· 107
Replacing a riser card and a PCIe module ··················································································· 108
Replacing an RC-Mezz-Riser-G3 Mezz PCIe riser card ·································································· 109
Replacing a storage controller ·································································································· 111
Guidelines ····················································································································· 111
Preparing for replacement ································································································· 111
Replacing the Mezzanine storage controller ·········································································· 111
Replacing a standard storage controller ··············································································· 112
Replacing the power fail safeguard module ················································································· 113
Replacing the power fail safeguard module for the Mezzanine storage controller ·························· 113
Replacing the power fail safeguard module for a standard storage controller ································ 116
Replacing a GPU module ········································································································ 117
Replacing a GPU module without a power cord or with a standard chassis air baffle ······················ 117
Replacing a GPU module with a power cord and a GPU-dedicated chassis air baffle ····················· 119
Replacing an Ethernet adapter ·································································································· 120
Replacing an mLOM Ethernet adapter ················································································· 120
Replacing a PCIe Ethernet adapter ····················································································· 121
Replacing a M.2 transfer module and a SATA M.2 SSD ································································· 122
Replacing the front M.2 transfer module and a SATA M.2 SSD ················································· 122
Replacing the rear M.2 transfer module and a SATA M.2 SSD ·················································· 123
Replacing an SD card ············································································································· 124
Replacing the dual SD card extended module ·············································································· 125
Replacing an NVMe SSD expander module ················································································· 126
Replacing an NVMe VROC module ··························································································· 127
Replacing a fan ····················································································································· 127
Replacing the fan cage ············································································································ 128
Replacing a DIMM·················································································································· 129
Replacing a processor ············································································································ 130
Guidelines ····················································································································· 131
Prerequisites ·················································································································· 131
Removing a processor ······································································································ 131
Installing a processor ······································································································· 132
Replacing the system battery ···································································································· 134
Removing the system battery ····························································································· 134
Installing the system battery ······························································································ 135
Verifying the replacement ·································································································· 135
Replacing the system board ····································································································· 136
Guidelines ····················································································································· 136
Removing the system board ······························································································ 136
Installing the system board ································································································ 137
Replacing the drive expander module ························································································· 139
Replacing drive backplanes ······································································································ 141
Removing drive backplanes ······························································································· 141
Installing drive backplanes ································································································ 142
Verifying the replacement ·································································································· 144
Replacing the SATA optical drive ······························································································ 144
Replacing the diagnostic panel ································································································· 145
Replacing the serial label pull tab module ···················································································· 146
Replacing the chassis-open alarm module ·················································································· 146
Removing the chassis-open alarm module ············································································ 146
Installing the chassis-open alarm module ············································································· 147
Replacing chassis ears ··········································································································· 148
Replacing the right chassis ear ··························································································· 148
Replacing the left chassis ear ···························································································· 151
iii