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6500SX

LEADING TECHNOLOGY

6500SX

Processor

80386SX (exact location unknown)

Processor Speed

16/20/25MHz

Chip Set

SIS

Max. Onboard DRAM

4MB

Cache

None

BIOS

AMI

Dimensions

254mm x 220mm

I/O Options

Floppy drive interface, IDE interface, Game port, parallel port, serial ports (2)

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

Parallel port

CN1

IDE interface

J10

Joystick port

CN2

Floppy drive interface

J12

Serial port 2

CN3

Speaker

J15

Serial port 1

CN4

IDE interface LED

J32

Front panel connector

J4

Riser Card

S1

External battery

J9

   

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

Joystick port enabled

J17

Closed

 

Joystick port disabled

J17

Open

Floppy drive interface enabled

J28

Open

 

Floppy drive interface disabled

J28

Closed

IDE interface enabled

J29

Closed

 

IDE interface disabled

J29

Open

Parity enabled

J33

Closed

 

Parity disabled

J33

Open

NPU disabled

J40

pins 1 & 2 closed

 

NPU enabled

J40

pins 2 & 3 closed

Factory configured - do not alter

SW2/5

Off

Factory configured - do not alter

SW2/6

On

Factory configured - do not alter

SW2/7

Off

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

1MB

(8) 44256

NONE

NONE

1.5MB

(8) 44256

(2) 256K x 9

NONE

2MB

(8) 44256

(2) 256K x 9

(2) 256K x 9

2MB

NONE

(2) 1M x 9

NONE

4MB

NONE

(2) 1M x 9

(2) 1M x 9

DRAM SWITCH CONFIGURATION

Size

SW2/1

SW2/2

SW2/3

SW2/4

SW2/8

SW2/9

SW2/10

1MB

On

On

On

On

On

On

Off

1.5MB

On

On

On

On

On

Off

On

2MB

On

On

On

On

On

Off

Off

2MB

On

Off

Off

On

On

On

On

4MB

On

Off

Off

Off

On

On

Off

SERIAL PORT CONFIGURATION

Port 1 (CN4)

Port 2 (CN2)

J20

J22

J25

J26

COM1

COM2

2 & 3

1 & 2

Open

Open

 

COM1

COM3

2 & 3

Open

1 & 2

Open

 

COM1

COM4

2 & 3

Open

Open

1 & 2

 

COM2

COM1

1 & 2

2 & 3

Open

Open

 

COM2

COM3

Open

2 & 3

1 & 2

Open

 

COM2

COM4

Open

2 & 3

Open

1 & 2

 

COM3

COM1

1 & 2

Open

2 & 3

Open

 

COM3

COM2

Open

1 & 2

2 & 3

Open

 

COM3

COM4

Open

Open

2 & 3

1 & 2

 

COM4

COM1

2 & 3

Open

Open

1 & 2

 

COM4

COM2

Open

1 & 2

Open

2 & 3

 

COM4

COM3

Open

Open

1 & 2

2 & 3

Note:Pins designated should be in the closed position.

SERIAL PORT IRQ CONFIGURATION

Port 1 (CN1)

Port 2 (CN2)

J18

J19

IRQ4

IRQ3

pins 2 & 3 closed

pins 1 & 2 closed

 

IRQ3

IRQ4

pins 1 & 2 closed

pins 2 & 3 closed

PARALLEL PORT CONFIGURATION

LPT

IRQ

J16

J21

1

7

pins 2 & 3 closed

pins 2 & 3 closed

 

1

5

pins 2 & 3 closed

pins 1 & 2 closed

 

2

7

pins 1 & 2 closed

pins 2 & 3 closed

 

2

5

pins 1 & 2 closed

pins 1 & 2 closed