• Tier 2 customer replaceable unit (CRU): You may install a Tier 2 CRU yourself or request Lenovo to
install it, at no additional charge, under the type of warranty service that is designated for your compute
node.
• Field replaceable unit (FRU): FRUs must be installed only by trained service technicians.
• Consumable and Structural parts: Purchase and replacement of consumable and structural parts
(components, such as a cover or bezel) is your responsibility. If Lenovo acquires or installs a structural
component at your request, you will be charged for the service.
Table 12. Compute node components
Index Description Tier 1 CRU Tier 2 CRU FRU Consumable
and
Structural
part
For more information about ordering the parts shown in
Figure 9 “Compute node components” on page 23:
https://datacentersupport.lenovo.com/products/servers/thinksystem/sn850/7x15/parts
It is highly recommended that you check the power summary data for your server using Lenovo Capacity Planner
before purchasing any new parts.
1
Compute node cover
√
2
Air baffle
√
3
I/O expansion adapter
√
4
Fabric connector
√
5
Trusted Cryptographic Module (TCM)
√
6
DIMM
√
7
DC Persistent Memory Module
(DCPMM)
√
8
2.5-inch drive
√
9
Drive bay filler
√
10
Bezel (right)
√
11
Bezel (left)
√
12
M.2 backplane retainer clip
√
13
M.2 backplane
√
14
Front handles
√
15
RAID adapter
√
16
Interposer card
√
17
Storage cage
√
18
2.5-inch drive backplane
√
19
Processor
√
20
Heat sink assembly for Processor 3, 4
√
21
Heat sink assembly for Processor 1, 2
√
22
Heat sink filler
√
24 ThinkSystem SN850 Compute Node Setup Guide
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