Battery select and clear cmos (j9) – Adaptec SBC-599 User Manual

Page 27

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Chapter 2 Installation Guide 17

Battery Select and Clear CMOS (J9)

This jumper sets the CMOS data retention power supply by
internal battery, external battery, or clear CMOS.

J9 Battery Select

Internal Battery* External Battery Clear CMOS

J9

* default setting

SCSI Select (J10) (SBC-599 only)

This jumper sets the data transfered by SCSI to 16-bit (Wide SCSI
enabled) or 8-bit (Wide SCSI disabled).

J10 SCSI Select

Wide SCSI Enabled* Wide SCSI Disabled

J10

1 2

1 2

* default setting

ISA Timing (J11) (SBC-599 only)

For high-drive ISA bus systems, in order to increase system
stability, you may delay the ISA timing for 1 or 2 clock pulses.
However, it will decrease system performance.

J11 ISA Timing

1 wait delay*

2 wait delay

J11

* default setting

1

1

1 2 3 4

1 2 3 4

1 2 3 4

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