Table 23.  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 4 x 3.5-inch drive cage
√
4
Rear 2 x 3.5-inch drive cage
√
5
Riser cages:  
•  Riser 1 or riser 2 cage (3FH)
•  Riser 3 cage (2FH)
•  1U riser cage (LP)
√
6
Riser cards: 
•  Riser 1
•  Riser 2
√
•  Riser 3
√
7
PCIe adapter
√
8
Power supply
√
9
Serial port module
√
10
Processor
√
11
Memory module
√
12
Heat sinks 
•  Standard heat sink
•  High performance T-shape 
heat sink
•  1U heat sink
√
13
Heat sink PEEK nut
√
14
Rear wall brackets
√
15
7mm drive
√
16
7mm drive bay filler
√
17
7mm drive cage (2FH + 7mm)
√
18
7mm drive cage (1U)
√
19
7mm drive backplanes
√
20
OCP 3.0 Ethernet adapter
√
21
M.2 drive backplane
√
22
M.2 drive
√
23
M.2 retainer clip
√
24
CMOS battery (CR2032)
√
66 ThinkSystem SR650 V2Maintenance Manual