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MODEL 2C

GSI, INC.

MODEL 2C

Data Bus

16-bit ISA

Card Size

Half height, half length

Hard Drives Supported

Four IDE(AT) devices

Floppy Drives Supported

None

CONNECTIONS

Function

Label

Function

Label

VESA local bus extension module

J1

40-pin secondary IDE(AT) connector

J7

4-pin DC power out

J5

4-pin drive active LED

J8

40-pin primary IDE(AT) connector

J6

   

USER CONFIGURABLE SETTINGS

Setting

Label

Position

»

Factory configured - do not alter

J4/A

Pins 2 & 3

»

GSI BigaByte support for >4095 cylinder drives disabled

J4/G

Pins 1 & 2

 

GSI BigaByte support for >4095 cylinder drives enabled

J4/G

Pins 2 & 3

IDE(AT) INTERFACE CONFIGURATION

Option

Primary Addr.

Secondary Addr.

Primary IRQ

Secondary IRQ

 

1

1F0h

170h

IRQ14

IRQ15

 

2

170h

Disabled

IRQ15

N/A

 

3

170h

Disabled

IRQ12

N/A

»

4

170h

1E8h

IRQ15

IRQ11

 

5

170h

1E8h

IRQ15

IRQ12

 

6

1E8h

Disabled

IRQ11

N/A

 

7

1E8h

Disabled

IRQ12

N/A

 

8

1E8h

168h

IRQ11

IRQ10

 

9

1E8h

168h

IRQ11

IRQ12

IDE(AT) INTERFACE CONFIGURATION (CON’T)

Option

J4/B

J4/C

J4/D

J9

 

1

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 2 & 3 closed

Pins 7 & 8 closed

 

2

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 7 & 8 closed

 

3

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 5 & 7 closed

»

4

Pins 1 & 2 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 7 & 8, 4 & 6 closed

 

5

Pins 1 & 2 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 7 & 8, 5 & 6 closed

 

6

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 4 & 6 closed

 

7

Pins 2 & 3 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 5 & 6 closed

 

8

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 4 & 6, 1 & 3 closed

 

9

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 4 & 6, 3 & 5 closed

BIOS ADDRESS SELECTION

Setting

J4/E

J4/F

»

C800h

Pins 1 & 2 closed

Pins 1 & 2 closed

 

CC00h

Pins 2 & 3 closed

Pins 1 & 2 closed

 

D000h

Pins 1 & 2 closed

Pins 2 & 3 closed

 

E000h

Pins 2 & 3 closed

Pins 2 & 3 closed