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PREFERRED C320SX

CSS LABORATORIES, INC.

PREFERRED C320SX

Processor

80386SX

Processor Speed

20MHz

Chip Set

C & T

Max. Onboard DRAM

16MB

SRAM Cache

16/32KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

IDE interface, floppy drive interface

parallel port, serial port (2)

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

IDE interface LED

LED

Reset switch

J4/pins 1 & 2

Floppy drive interface

PJ1

Turbo LED

J4/pins 3 & 4

Parallel port

PJ2

Speaker

J6

Serial port 1

PJ3

Power LED & keylock

J8

Serial port 2

PJ4

Front panel switches & LEDs

J39

IDE interface

PJ5

Hard drive access LED

J40

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Floppy drive interface enabled

FDDEN

pins 2 & 3 closed

 

Floppy drive interface disabled

FDDEN

pins 1 & 2 closed

IDE interface enabled

IDEEN

pins 2 & 3 closed

 

IDE interface disabled

IDEEN

pins 1 & 2 closed

CMOS memory normal operation

J2

pins 2 & 3 closed

 

CMOS memory clear

J2

pins 1 & 2 closed

I/O bus wait state select one

J3

open

 

I/O bus wait states select zero

J3

pins 2 & 3 closed

Monitor type select color

J7

pins 2 & 3 closed

 

Monitor type select monochrome

J7

pins 1 & 2 closed

Factory configured - do not alter

J9

open

Factory configured - do not alter

PJ7

open

Factory configured - do not alter

PJ8

open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(2) 256K x 9

(2) 256K x 9

NONE

NONE

2MB

(2) 256K x 9

(2) 256K x 9

(2) 256K x 9

(2) 256K x 9

2MB

(2) 1M x 9

NONE

NONE

NONE

4MB

(2) 1M x 9

(2) 1M x 9

NONE

NONE

5MB

(2) 1M x 9

(2) 1M x 9

(2) 256K x 9

(2) 256K x 9

6MB

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

NONE

8MB

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

8MB

(2) 4M x 9

NONE

NONE

NONE

9MB

(2) 4M x 9

(2) 256K x 9

(2) 256K x 9

NONE

10MB

(2) 4M x 9

(2) 1M x 9

NONE

NONE

11MB

(2) 4M x 9

(2) 1M x 9

(2) 256K x 9

(2) 256K x 9

12MB

(2) 4M x 9

(2) 1M x 9

(2) 1M x 9

NONE

14MB

(2) 4M x 9

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

16MB

(2) 4M x 9

(2) 4M x 9

NONE

NONE

SRAM CONFIGURATION

Size

Cache SRAM

Location

TAG

16KB

(8) 16K x 1

Banks 0 & 1

(1) 8K x 8

32KB

(4) 8K x 8

Bank 0

(1) 8K x 8

Note:Location and configuration of Cache is unverified.

SRAM JUMPER CONFIGURATION

Size

Jumper W1

Jumper W2

Jumper W3

Jumper W4

Jumper W5

16KB

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 1 & 2

32KB

pins 2 & 3

pins 2 & 3

pins 2 & 3

pins 2 & 3

pins 2 & 3

Note:Pins designated should be in the closed position.

SERIAL PORT 1 (PJ3) CONFIGURATION

COM

IRQ Interrupt

I/O Address

Jumper PJ6

S0

S1

COM 2

IRQ3

2F8h

pins 1 & 3

pins 1 & 2

pins 2 & 3

COM 1

IRQ4

3F8h

pins 1 & 2

pins 2 & 3

pins 2 & 3

Disabled

N/A

N/A

N/A

pins 1 & 2

pins 1 & 2

Note:Pins designated should be in the closed position.

SERIAL PORT 2 (PJ4) CONFIGURATION

COM

IRQ Interrupt

I/O Address

Jumper PJ6

S2

S3

COM 1

IRQ4

3F8h

pins 2 & 4

pins 1 & 2

pins 2 & 3

COM 2

IRQ3

2F8h

pins 3 & 4

pins 2 & 3

pins 2 & 3

Disabled

N/A

N/A

N/A

pins 1 & 2

pins 1 & 2

Note:Pins designated should be in the closed position.

PARALLEL PORT 1 (PJ2) CONFIGURATION

LPT

IRQ Interrupt

I/O Address

Jumper P0

Jumper P1

Jumper PRT

LPT 1

IRQ7

3F8h

pins 1 & 2

pins 2 & 3

pins 2 & 3

LPT 2

IRQ5

2F8h

pins 2 & 3

pins 2 & 3

pins 1 & 2

LPT 3

IRQ7

3BCh

pins 2 & 3

pins 1 & 2

pins 2 & 3

Disabled

N/A

N/A

pins 1 & 2

pins 1 & 2

N/A

Note:Pins designated should be in the closed position.