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AR-B1047 User’s Guide

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2.3.3 SSD Drive Number (SW1-3 & SW1-4)

The AR-B1047’s SSD can simulate one or two disk drives. You can assign the drive letter of the AR-B1047 by

configuring SW1-3 & SW1-4.

You can make the computer to boot from SSD by copying DOS into the SSD. If your SSD does not have DOS, the

computer will boot from your hard disk or floppy disk. In this condition, the SSD BIOS of AR-B1047 will set the

drive letter of the SSD to the desired drive letter automatically.

The SSD BIOS will simulate one disk drive when only (FLASH) EPROM or SRAM (starting from MEM1 socket) is

installed. The drive numbers with respect to the switch setting when the AR-B1047 simulates single disk drives.

SW1-3 SW1-4 Occupies floppy disk number (SSD)

OFF OFF 0 or 1 (Note 1)

ON OFF 0 or 2 (Note 2)

OFF ON 0

ON ON 0

Table 2-3 SSD Drive Number

NOTE: 1. If there is no DOS on this SSD, the disk number will be 1 (B:). If any DOS is found by the AR-B1047

SSD BIOS, the disk number will be 0 (A:) But, you can change the disk number from 0 to 1 by pressing

the <ESC> key during system bootup.

2. If there is no DOS on this SSD, the disk number will be 2 (C: or D: or…). If any DOS is found by the

AR-B1047 SSD BIOS, the disk number will be 0 (A:). But, you can change the disk number from 0 to 2

by pressing the <ESC> key during system bootup.

(1) Simulate 2 Disk Drive

When (FLASH) EPROM and SRAM are both used on the AR-B1047, or you only have installed SRAM that does

not start from MEM1 socket, the AR-B1047 will simulate two disk drives. The drive numbers respect to those

switch settings when AR-B1047 simulates two disk drives.

Occupies floppy disk number

SW1-3 SW1-4

FLASH (EPROM) SRAM

OFF OFF 0 or 1 (Note 1) 2

ON OFF 0 or 2 (Note 2) 3

OFF ON 0 1

ON ON 0 2

Table 2-4 SSD Drive Number for Simulate 2 Disk Drives

NOTE: 1. If there is no DOS on this SSD, the disk number will be 1 (B:). If any DOS is found by the AR-B1047

SSD BIOS, the disk letter will be 0 (A:). But, you can change the disk number from 0 to 1 by pressing

the <ESC> key during system boot up.

2. If there is no DOS on this SSD, the disk number will be 2 (C: or D: or…). If any DOS is found by the

AR-B1047 SSD BIOS, the disk number will be 0 (A:). But, you can change the disk number from 0 to 2

by pressing the <ESC> key during system boot up.

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