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A-2 SPARC Enterprise M4000/M5000 Servers Service Manual • August 2009
FIGURE A-1 SPARC Enterprise M4000 Component Locations
Location
Number Component
Location
Number Component
1 60-mm fan (FAN_B#0) 22 DC-DC Converter (DDC_A#0)
2 60-mm fan (FAN_B#1) 23 DC-DC Converter (DDC_A#1)
3 Top cover 24 Motherboard unit (MBU_A)
4 Fan cover 25 Motherboard carriage
5 Backplane unit (BPU_A - includes IOBP,
Power distribution board)
26 CPU module (CPUM#1)
6 172-mm fan backplane (FANBP_A) 27 CPU module (CPUM#0)
7 60-mm fan backplane (FANBP_B) 28 Memory board (MEMB#3)
1
2
5
11
13
14
17
16
18 20
37
35
36
28
27
26
21
12
19
29
30
31
35
34
33
32
4
15
7
8
9
10
3
6
22
24
23
25
40
41
38
39