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PREFERRED 433GA Motherboard Settings and Configuration






CSS LABORATORIES, INC.

PREFERRED 433GA

   

Processor

80486DX

Processor Speed

33MHz (upgradable to 50MHz with CPU module)

Chip Set

C & T

Max. Onboard DRAM

32MB

SRAM Cache

64/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit external CPU/NPU card slot, 32-bit local video card slot, auxiliary keyboard, floppy interface, IDE interface,

parallel port, serial port (2)

NPU Options

4167 (on 32-bit external CPU/NPU card)

   

CONNECTIONS

Purpose

Location

Purpose

Location

Speaker

J4

IDE interface LED

LED

External battery

J9

Floppy drive interface

PJ1

Power LED & keylock

J10

Parallel port

PJ2

Auxiliary keyboard

J11A

Serial port 1

PJ3

Reset switch

J13/pins 1 & 2

Serial port 2

PJ4

Turbo switch

J13/pins 3 & 4

IDE interface

PJ5

Front panel switches & LEDs

J39

32-bit external CPU/NPU card

SL1

Hard drive access LED

J40

32-bit MaxGraphics video card

SL2

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Floppy interface enabled

FDDEN

pins 2 & 3 closed

 

Floppy interface disabled

FDDEN

pins 1 & 2 closed

IDE interface enabled

IDEEN

pins 2 & 3 closed

 

IDE interface disabled

IDEEN

pins 1 & 2 closed

Factory configured - do not alter

J3

open

Monitor type select color

J12

pins 2 & 3 closed

 

Monitor type select monochrome

J12

pins 1 & 2 closed

Factory configured - do not alter

JP1 & JP2

unknown

SRAM JUMPER CONFIGURATION

Size

J2

J5

J6

J7

J8

64KB

open

open

open

pins 2 & 3

pins 2 & 3

256KB

closed

closed

closed

pins 1 & 2

pins 1 & 2

Note:Pins designated should be in the closed position.

SRAM CONFIGURATION

Size

Cache SRAM

TAG

64KB

(8) 8K x 8

(1) 8K x 8

256KB

(8) 32K x 8

(1) 32K x 8

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(4) 256K x 9

NONE

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

5MB

(4) 1M x 9

(4) 256K x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

17MB

(4) 4M x 9

(4) 256K x 9

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

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.








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