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SCSI Enable/Disable
(370SC3 only)
Jumper JA1 allows you to enable
or disable the onboard SCSI. The
default setting is enabled.
Table 2-21 for jumper settings.
2-8
Parallel Port, AMR, Floppy/Hard Disk Drive, AGP
Port and SCSI Connections
Use the following information to connect the floppy and hard disk drive
cables.
• The floppy disk drive cable has seven twisted wires.
• A red mark on a wire typically designates the location of pin 1.
• A single floppy disk drive ribbon cable has 34 wires and two connectors to
provide for two floppy disk drives. The connector with twisted wires always
connects to drive A, and the connector that does not have twisted wires
always connects to drive B.
• The 80-wire ATA66 IDE hard disk drive cable that came with your system has
two connectors to support two drives. This special cable should be used to
take advantage of the speed this new technology offers. The blue connector
connects to the onboard IDE header and the other connector(s) to your hard
drive(s). Consult the documentation that came with your disk drive for details
on actual jumper locations and settings.
Parallel Port Connector
The parallel port is located on J35.
See Table 2-21 for pin definitions.
SCSI Enable/Disable
Jumper Settings (JA1)
Jumper
Position
O N
O F F
See
Parallel (Printer) Port Pin Definitions
Pin Number
1
3
Data Bit 0
5
Data Bit 1
7
Data Bit 2
9
Data Bit 3
11
Data Bit 4
13
Data Bit 5
15
Data Bit 6
17
Data Bit 7
19
21
23
25
2-13
Chapter 2: Installation
Table 2-21
Definition
Enabled
Disabled
Table 2-21
(J35)
Function
Pin Number
Function
Strobe-
2
Auto Feed-
4
Error-
6
8
SLCT IN-
10
G N D
12
G N D
14
G N D
16
G N D
18
G N D
A C K
20
G N D
B U S Y
22
G N D
P E
24
G N D
S L C T
26
Init-
N C
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