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Appendix A System Views A-7
Location
Number Component
1 Top cover
2 CPU module (CPUM#0)
3 CPU module (CPUM#1)
4 CPU module (CPUM#2)
5 CPU module (CPUM#3)
6 172-mm fan (FAN_A#1)
7 172-mm fan (FAN_A#0)
8 172-mm fan (FAN_A#3)
9 172-mm fan (FAN_A#2)
10 Backplane unit (BPU_B - includes IOBP, Power distribution board,
bus bar)
11 172-mm fan backplane (FANBP_C)
12 CD-RW/DVD-RW backplane (DVDBP_B)
13 Tape drive backplane (TAPEBP)
14 Hard disk drive backplane (HDDBP#1 IOU#1)
15 Hard disk drive backplane (HDDBP#0 IOU#0)
16 Hard disk drive (HDD#1 IOU#0)
17 Hard disk drive (HDD#0 IOU#0)
18 Hard disk drive (HDD#3 IOU#1)
19 Hard disk drive (HDD#2 IOU#1)
20 Tape drive unit (TAPEU)
*
21 CD-RW/DVD-RW drive unit(DVDU)
22 Faceplate
23 Power supply unit (PSU#0)
24 Power supply unit (PSU#1)
25 Power supply unit (PSU#2)
26 Power supply unit (PSU#3)
27 Operator panel (OPNL)
28 I/O unit (IOU#0)