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DPC-4434

RAVEN SERVICE WORKS

DPC-4434

Processor

80486SX/80487SX/80486DX/ODP486SX/80486DX2

Processor Speed

20/25/33/50(internal)/50/66(internal) MHz

Chip Set

Unknown

Max. Onboard DRAM

32MB

Cache

None

BIOS

Unknown

Dimensions

330mm x 218mm

I/O Options

Floppy drive interface, IDE interface, multi-function connector (power LED, turbo SW1itch, keylock, and reset), parallel port, PS/2 keyboard connector, PS/2 mouse port, serial port,VGA feature connector, VGA port

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Multi-function connector

C1

PS/2 mouse port

MC

Speaker

C2

Parallel port

PC

IDE interface LED

C3

Riser Card

S1

Floppy drive interface

FDC

Serial port

SC

IDE interface

IDE

VGA port

VC

PS/2 keyboard port

KC

VGA feature connector

VGA

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

PS/2 mouse port enabled (IRQ12)

JP5

pins 1 & 2 closed

 

PS/2 mouse port disabled

JP5

pins 2 & 3 closed

Monitor type select color

SW1/2

On

 

Monitor type select monochrome

SW1/2

Off

DRAM CONFIGURAPTION

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

ONBOARD VIDEO CONFIGURATION

VRAM size

Bank 0

Bank 1

SW1/1

SW1/3

512KB

512KB

None

On

On

 

1024KB

512KB

(4) 256K x 4

On

Off

 

Disabled

N/A

N/A

Off

N/A

800 X 600 VIDEO MODE CONFIGURATION

Refresh Rate

Mode

SW1/6

SW1/7

56Hz

Interlaced

Off

Off

 

60Hz

Interlaced

On

Off

 

70Hz

Interlaced

Off

On

 

72Hz

Interlaced

On

On

1024 X 768 VIDEO MODE CONFIGURATION

Refresh Rate

Mode

SW1/4

SW1/5

56Hz

Interlaced

Off

Off

 

60Hz

Non-interlaced

On

Off

 

70Hz

Non-interlaced

Off

On

 

72Hz

Non-interlaced

On

On

RAMDAC CONFIGURATION

RAMDAC type

JP1

JP2

BT478, BT476, KDA0478, KDA0476

Closed

pins 2 & 3 closed

SC11483, SC11487 (Hi-Color)

Closed

pins 1 & 2 closed

IMS178

Open

pins 1 & 2 closed

CPU CONFIGURATION

CPU

JP3

JP4

JP8

JP9

80486SX

Open

pins 1 & 2 closed

pins 2 & 3 closed

Open

80487SX/ODP486SX

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

Closed

80486DX/DX2

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

Closed