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Appendix A System Views A-3
Location
Number Component
1 60-mm fan (FAN_B#0)
2 60-mm fan (FAN_B#1)
3 Top cover
4 Fan cover
5 Backplane Unit (BPU_A - includes IOBP, Power
distribution board)
6 172-mm fan backplane (FANBP_A)
7 60-mm fan backplane (FANBP_B)
8 Tape drive backplane (TAPEBP)
9 Hard disk drive backplane (HDDBP#0)
10 CD-RW/DVD-RW backplane (DVDBP_A)
11 CD-RW/DVD-RW drive unit (DVDU)
12 Hard disk drive (HDD#1)
13 Hard disk drive (HDD#0)
14 Tape drive unit (TAPEU)
*
15 Faceplate
16 Power supply unit (PSU#0)
17 Power supply unit (PSU#1)
18 Operator panel (OPNL)
19 172-mm fan module (FAN_A#0)
20 172-mm fan module (FAN_A#1)
21 DC-DC Converter (DDC_B#0)
22 DC-DC Converter (DDC_A#0)
23 DC-DC Converter (DDC_A#1)
24 Motherboard unit (MBU_A)
25 Motherboard carriage
26 CPU module (CPUM#1)
27 CPU module (CPUM#0)
28 Memory board (MEMB#3)
29 Memory board (MEMB#2)