
Contents
Safety . . . . . . . . . . . . . . . . . . iii
Safety inspection checklist . . . . . . . . . . . iv
Chapter 1. Introduction . . . . . . . . . 1
Specifications . . . . . . . . . . . . . . . . 1
General specifications . . . . . . . . . . . 2
4-DW GPU Mo el / 8-DW GPU Mo el
specification . . . . . . . . . . . . . . . 6
SXM GPU Mo el specification . . . . . . . . 8
Particulate contamination . . . . . . . . . . 8
Firmware up ates . . . . . . . . . . . . . . . 9
Tech Tips . . . . . . . . . . . . . . . . . 13
Security a visories . . . . . . . . . . . . . 13
Power on the server . . . . . . . . . . . . . 14
Power off the server . . . . . . . . . . . . . 14
Chapter 2. Ser er components . . . . 15
The 4-DW GPU Mo el Front view . . . . . . . . 16
The 8-DW GPU Mo el Front view . . . . . . . . 18
The SXM GPU Mo el front view . . . . . . . . 21
Rear view . . . . . . . . . . . . . . . . . 22
Front panel . . . . . . . . . . . . . . . . 25
Front I/O mo ule . . . . . . . . . . . . . . 26
External LCD iagnostics han set . . . . . . . 27
System-boar layout . . . . . . . . . . . . . 34
System-boar connectors . . . . . . . . . 34
System-boar switches . . . . . . . . . . 36
Parts list. . . . . . . . . . . . . . . . . . 38
The 4-DW GPU Mo el (2.5-inch rive
configuration) parts list . . . . . . . . . . 39
The 4-DW GPU Mo el (3.5-inch rive
configuration) parts list . . . . . . . . . . 43
The 8-DW GPU Mo el parts list . . . . . . . 47
The SXM GPU Mo el parts list . . . . . . . 51
Power cor s . . . . . . . . . . . . . . . . 55
Chapter 3. Internal cable routing . . . 57
I entifying connectors . . . . . . . . . . . . 58
Drive backplane connectors . . . . . . . . 58
GPU istribution boar connectors . . . . . 61
Rear riser boar connectors . . . . . . . . 63
Front I/O expansion boar connectors . . . . 63
Retimer assembly connectors . . . . . . . 64
4-DW GPU Mo el with 8x 2.5-inch rives cable
routing . . . . . . . . . . . . . . . . . . 65
Configuration A cable routing. . . . . . . . 67
Configuration A with HBA/RAID a apter cable
routing . . . . . . . . . . . . . . . . 72
Configuration C cable routing . . . . . . . 77
4-DW GPU Mo el with 4x 3.5-inch rives cable
routing . . . . . . . . . . . . . . . . . . 81
Configuration B cable routing . . . . . . . 83
Configuration B with HBA/RAID a apter cable
routing . . . . . . . . . . . . . . . . 88
8-DW GPU Mo el cable routing . . . . . . . . 93
Configuration D cable routing . . . . . . . 95
Configuration E cable routing. . . . . . . . 101
SXM GPU Mo el cable routing . . . . . . . . . 106
Configuration F cable routing. . . . . . . . 108
Configuration G cable routing . . . . . . . 114
Chapter 4. Hardware replacement
procedures . . . . . . . . . . . . . . . 121
Installation Gui elines . . . . . . . . . . . . 121
Safety inspection checklist. . . . . . . . . 122
System reliability gui elines . . . . . . . . 123
Han ling static-sensitive evices . . . . . . 123
Server replacement . . . . . . . . . . . . . 124
Remove the server from rack . . . . . . . . 124
Install the server to rack . . . . . . . . . . 127
Common components . . . . . . . . . . . . 133
Air baffle replacement . . . . . . . . . . 133
CMOS battery (CR2032) replacement . . . . 136
External LCD iagnostics han set
replacement . . . . . . . . . . . . . . 139
Fan cage replacement . . . . . . . . . . 143
Fan replacement . . . . . . . . . . . . 145
Flash power mo ule replacement . . . . . . 147
Front I/O mo ule replacement . . . . . . . 150
Front panel replacement . . . . . . . . . 155
Heat sink Torx T30 nut replacement . . . . . 159
Intrusion switch replacement . . . . . . . . 162
M.2 backplane an M.2 rive replacement . . 166
Memory mo ule replacement . . . . . . . 172
Network a apter replacement . . . . . . . 179
OCP Ethernet a apter replacement . . . . . 181
PCIe riser an PCIe a apter replacement . . . 183
PCIe riser boar replacement . . . . . . . 192
Power istribution boar replacement . . . . 194
Power supply unit replacement . . . . . . . 197
Processor an heat sink replacement . . . . 200
Serial port mo ule replacement . . . . . . . 212
System boar replacement (traine technician
only) . . . . . . . . . . . . . . . . . 214
Top cover replacement . . . . . . . . . . 225
© Copyright Lenovo 2021 i