•  Tier 1 customer replaceable unit (CRU): Replacement of Tier 1 CRUs is your responsibility. If Lenovo 
installs a Tier 1 CRU at your request with no service agreement, you will be charged for the installation. 
•  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 server.
•  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 is your 
responsibility. If Lenovo acquires or installs a structural component at your request, you will be charged 
for the service.
Table 22.  Parts list
Index
Description
Tier 1 CRU Tier 2 CRU FRU
Consumable 
and structural 
parts
1
Top cover
√
2
Rear 4 x 2.5-inch drive cage
√
3
Rear 8 x 2.5-inch drive cage
√
4
Riser cages:  
•  Riser 1 or riser 2 cage (3FH)
•  Riser 3 cage (2FH)
•  1U riser cage (LP)
√
5
Riser cards: 
•  Riser 1
•  Riser 2
√
•  Riser 3
√
6
PCIe adapter
√
7
Power supply
√
8
Serial port module
√
9
Processor
√
10
Memory module
√
11
Heat sinks 
•  Standard heat sink
•  High performance T-shape 
heat sink
•  1U heat sink
√
12
Heat sink PEEK nut
√
13
Rear wall brackets
√
14
7mm drive
√
15
7mm drive bay filler
√
16
7mm drive cage (2FH + 7mm)
√
17
7mm drive cage (1U)
√
18
7mm drive backplanes
√
Chapter 2. Server components 61