IPTools.net.ua

CONNECTIONS

Function

Location

50-pin SCSI cable connector-internal

CN1

50-pin SCSI cable connector-external

CN2

34-pin data cable connector-floppy drives

CN3

4-pin connector-drive active LED

CN4

USER CONFIGURABLE SETTINGS

Function

Location

Setting

Chip at U39 is -40A or -40B

JP1

pins 2 & 3 closed

Chip at U39 is -25A

JP1

pins 1 & 2 closed

Floppy drive enabled

JP2

closed

Floppy drive disabled

JP2

open

BIOS supports removable hard drives

JP11/jumper 5

open

BIOS not support removable hard drives

JP11/jumper 5

closed

Hard drive enabled

JP12/jumper 1

open

Hard drive disabled

JP12/jumper 1

closed

Hard drive port address is 1F0-1F7, 3F6-3F7h

JP12/jumper 1

open

Hard drive port address is 170-177, 376 377h

JP12/jumper 1

closed

BIOS supports two hard drives

JP12/jumper 2

open

BIOS supports seven hard drives

JP12/jumper 2

closed

Spindle motor starts on power-up

JP13/jumper 1

open

Spindle motor starts on command only

JP13/jumper 1

closed

Synchronous negotiation initiated by host adapter

JP13/jumper 2

open

Synchronous negotiation initiated by target

JP13/jumper 2

closed

SCSI parity check enabled

JP13/jumper 3

open

SCSI parity check disabled

JP13/jumper 3

closed

Start Synchronous negotiation at 10MB/sec

JP13/jumper 4

open

Start Synchronous negotiation at 5MB/sec

JP13/jumper 4

closed

Reserved, must be left "open"

JP13/jumper 5

open

Third floppy supported with double-twisted cable

JP13/jumper 6

open

Third floppy suppproted with single-twisted cable

JP13/jumper 6

closed

Floppy drive port address is 3F0-3F7h

JP13/jumper 7

open

Floppy drive port address is 370-377h

JP13/jumper 7

closed

Command recovery time is 150 nsec

JP14/jumper 3*

open

Command recovery time is 100 nsec

JP14/jumper 3*

closed

Note:*If AT-bus speed is > 6.7 MB/sec CMD recovery time is fixed at 100nsec.

DMA CHANNEL

Channel

JP11/jumper 1

JP11/jumper 2

5

open

open

6

open

closed

7

closed

open

Reserved

closed

closed

INTERRUPT REQUEST

IRQ

JP11/jumper 3

JP11/jumper 4

14

open

closed

15

open

open

11

closed

open

10

closed

closed

BIOS ADDRESS

Address

JP11/jumper 6

JP11/jumper 7

JP11/jumper 8

C8000h

open

closed

open

Disabled

open

open

open

C4000h

open

open

closed

CC000h

open

closed

closed

D0000h

closed

open

open

D4000h

closed

open

closed

D8000h

closed

closed

open

DC000h

closed

closed

closed

HEAD MAPPING MODE

Mode

JP12/jumper 4

JP12/jumper 5

64 heads / 32 SPT

open

closed

16 heads / 63 SPT

open

open

64 heads / 63 SPT

closed

open

64 heads / 32 SPT

closed

closed

SCSI ADDRESS

Address

JP12/jumper 6

JP12/jumper 7

JP12/jumper 8

0

open

open

open

1

open

open

closed

2

open

closed

open

3

open

closed

closed

4

closed

open

open

5

closed

open

closed

6

closed

closed

open

7

closed

closed

closed

DMA SPEED SELECT

Speed

JP14/jumper 1

JP14/jumper 2

5MB/sec

open

open

6.7MB/sec

open

closed

8MB/sec

closed

open

10MB/sec

closed

closed

BUS-ON CLOCK SPEED

Speed

JP13/jumper 8

JP14/jumper 4

JP14/jumper 5

11 m

open

open

open

9 m

open

open

closed

13 m

open

closed

open

15 m

open

closed

closed

2 m

closed

open

open

4 m

closed

open

closed

6 m

closed

closed

open

7 m

closed

closed

closed

I/O PORT ADDRESS

Address

JP14/jumper 6

JP14/jumper 7

JP14/jumper 8

330h

open

open

open

340h

open

open

closed

310h

open

closed

open

230h

open

closed

closed

240h

closed

open

open

210h

closed

open

closed

130h

closed

closed

open

140h

closed

closed

closed