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3.1.1
Layout
33
34
1
2
3
4
5
6
7
1.
PS/2 Keyboard port
2.
PS/2 Mouse port
3.
Video port
4.
Parallel port
5.
USB ports
6.
LAN port
7.
Serial port 2
8.
LAN controller chipset
9.
Serial port 1
10.
VGA controller chipset
11.
PCI slots 1 to 7
*
12.
BIOS chipset
13.
ISA slot
14.
IRQ Mapper chipset
15.
PCI Expander Bridge (PXB) chipset
16.
Battery
17.
AIC7896 SCSI controller
18.
Wide SCSI interface channel B
*
From left to right in this figure.
32
26
8
9
10
11
12
13
19.
Wide SCSI interface channel A
20.
Narrow SCSI interface
21.
IDE connector
22.
FDD connector
23.
Buzzer
24.
PIIX4e (PCI to ISA Bridge) chipset
25.
Memory board slot
26.
Memory and I/O Controller (MIOC)
27.
RDM daughter board
28.
Front panel connector
29.
Power supply status/control
connector
30.
Power connector 3
31.
Power connector 2
32.
Power connector 1
33.
Slot 2 sockets 1 to 4*
34.
VRM sockets 1 to 6*
31
30
29
28
27
25
24
17
16
15
14
Chapter 3 - System Boards
23
22
21
20
19
18
3-3
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