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DGX A100
Nvidia DGX A100 Service Manual
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Chap
ter
5.
Mo
t
herboar
d
T
r
a
y
-
Remo
val
and
Installa
tion
Y
ou
will
need
to
comple
tely
remo
ve
t
he
motherboar
d
tr
ay
from
the
server
in
or
der
to
service
the
f
ol
-
lowing
components.
▶
DIMMs
(either
adding
or
replacing)
5.1.
Remo
ving
t
he
Mo
therboar
d
T
r
ay
1.
Loosen
the
two
mo
therboard
thumbscr
ew
s
and
then
pull
t
he
handles
out
to
eject
the
mother-
boar
d
tra
y
.
17
22
24
Table of Contents
Table of Contents
3
Introduction
7
Customer-Replaceable Components
7
Recommended Tools
8
Customer Support
8
Front Fan Module Replacement
9
Front Fan Module Replacement Overview
9
Identifying the Failed Fan Module
9
Viewing the Fan Module LED
10
Using the BMC Dashboard and NVSM
10
Replacing and Returning the Front Fan Module
11
Power Supply Replacement
13
Power Supply Replacement Overview
13
Identifying the Failed Power Supply
13
Identifying the Failed Power Supply from the Back
13
Identifying the Failed Power Supply from the Console
14
Determining the Manufacturer
15
Replacing the Power Supply
16
Motherboard Tray - Accessing in Place
17
Accessing the Motherboard Tray
17
Replacing the Motherboard Tray
19
Motherboard Tray - Removal and Installation
23
Removing the Motherboard Tray
23
Reinstalling the Motherboard Tray
27
Nvme Cache Drive Upgrade from 4 to
31
Nvme Cache Drive Upgrade Overview
31
Determining the Nvme Drive to Order
31
Installing the Optional Nvme Drives
32
Nvme Cache Drive Replacement Overview
35
Identifying the Failed U.2 Nvme
35
Identifying the Failed Nvme from the Front
35
Identifying the Failed Nvme from the Console
36
Identifying the Nvme Manufacturer and Model
37
Replacing the U.2 Nvme Drive
37
Nvme Cache Drive Upgrade to 7.68 TB Drives
39
Nvme Cache Drive 7.68 TB Upgrade Overview
39
Installing the 7.68 TB Nvme Drives
39
Nvme Cache Drive Post-Installation Tasks
43
Recreating the Cache RAID 0 Volume
43
Returning the Nvme Drive
44
Nvme Boot Drive Replacement Overview
45
Identifying the Failed M.2 Nvme
45
Replacing the M.2 Nvme Drive
46
Rebuilding the Boot Drive RAID 1 Volume
50
Returning the Nvme Drive
51
Boot Drive Riser Assembly Replacement Overview
53
Determining a Failed M.2 Nvme Riser Assembly
54
Replacing the M.2 Nvme Riser Assembly
54
Returning the Riser Assembly
56
DIMM Replacement
57
DIMM Replacement Overview
57
Identifying the Failed DIMM
57
Replacing the DIMM
58
DIMM Upgrade
63
DIMM Upgrade Overview
63
Upgrading the DIMM
63
Network Card Replacement
69
Network Card Replacement Overview
69
Identifying the Failed Network Card
69
Replacing the Vertical Network Card
70
Replacing the Horizontal Network Card
71
Adding the Optional Dual-Port Horizontal Network Card
77
Dual-Port Network Card Upgrade Overview
77
Adding the Horizontal Network Card
78
Updating the Mellanox Network Card Firmware
83
Front Console Board Replacement
85
Front Console Board Replacement Overview
85
Replacing the Front Console Board
85
Motherboard Tray Battery Replacement
89
Motherboard Tray Battery Replacement Overview
89
Replacing the Motherboard Tray Battery
90
Trusted Platform Module Replacement
95
Trusted Platform Module Replacement Overview
95
Replacing the Trusted Platform Module
95
Removing and Attaching the Bezel
99
Installing the Rack Mount Kit
101
Installing the Rails
101
Installing the Cage Nuts
103
Third-Party License Notices
105
Micron Msecli
105
Mellanox (OFED)
106
Notices
107
Notice
107
Trademarks
108
Copyright
108
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Nvidia DGX A100 Specifications
General
Brand
Nvidia
Model
DGX A100
Category
Computer Hardware
Language
English
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