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3.3
System Board Layout
31
1
2
3
4
5
6
7
1
PS/2 mouse port
2
PS/2 keyboard port
3
Serial port 2
4
Parallel port
5
Serial port 1
6
USB connectors
7
RJ-45
8
LAN controller chipset
9
AGP slot
10
PCI slots
11
ISA slot
12
Intel 82371EB PIIX4E (PCI-
ISA bridge)
13
DEC 21152 (PCI-PCI bridge)
14
Buzzer
15
SCSI controller
16
Battery
17
Intel SMM card connector (reserved)
Altos 12000 Series User's Guide
29
30
27
8
9
10
18
19
20
21
22
23
24
25
26
27
28
29
30
31
28
25
24
26
15
14
13
12
11
System BIOS
RDM connectors
Channel A fast/narrow SCSI
connector (50 pin)
Channel 1 Ultra-wide/Ultra2 SCSI
connector (68 pin)
Channel 2 Ultra-wide/Ultra2 SCSI
connector (68 pin)
FDD connector
EIDE connector 2 (secondary)
EIDE connector 1 (primary)
DIMM sockets
Intel 443GX system controller
Power connector 1
Power connector 2
Power connector 3
Slot 2 CPU sockets
23
22
21
20
19
18
17
16
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