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142 iSeries and AS/400e System Builder
5.8 9406 Model 740 system unit with #9251 Base I/O Tower
schematic
Front
BLOWERS
POWER REGULATORS
R01 TO R10
BULKS P01 TO P06
AABBCC
RIO PORTS CLOCK CARD
AABBCC
P
R
O
C
E
S
S
O
R
2
P
R
O
C
E
S
S
O
R
1
MAIN STORAGE
MAIN STORAGE
M01 TO M06 M10 TO M15
M07 M09M08
BLOWERS
POWER REGULATORS
R11 TO R20
CHARGER/
BATTERY PACK/
AC BOX
R
I
O
P
O
R
T
S
S
P
C
N
C
A
R
D
MAIN STORAGE
D
M16 TO M19
EEDD D
M21 TO M24
EEDD
MAIN STORAGE
PROCESSOR 3 (12-WAY)
M20
Back
Part of the base
configuration
#9251 Front
DISK SLOTS #5057
12345678
*
#9251 Back
DISK SLOTS #5057
REM. MED.
CD-ROM
REM. MED.
REM. MED.
9
10
11 12 13 14 15 16
*******
*
K01 K16K15K14K13K12K11K10K09K08K07K06K05K04K03K02
D01
D02
D03
D04
FEATURE or ALT. IPL IOP
FEATURE IOP
FEATURE IOP
Reserved for #2695 (3)
Reserved
REGULATOR 1
C
B
A
M
F
I
O
P
AC BULK
S01 S08S07S06S05S04S03S02
DSA = 1/F
3245
BATTERIES AND BULKS
BASE BUS ADAPTER
Reserved for #2695 (2)
REGULATOR 2
REGULATOR 3
DISK UNIT 2
11B
DISK UNIT 1
11A
DISK UNIT 4
13B
DISK UNIT 3
13A
S09 S16S15S10 S11 A / B S13 A / B
* One byte disks
cannot be installed
in these slots