CSS LABORATORIES, INC.

PREFERRED 486 MGE/VL

Processor

80486DX/80486DX2/Pentium Overdrive

Processor Speed

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

Chip Set

SIS

Max. Onboard DRAM

256MB (128MB on CPU module)

Cache

512KB (on CPU module)

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

CPU module slot, 32-bit VESA local bus slots (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Speaker

J4

Reset/Turbo switch

J41

Power LED & keylock

J5

32-bit VESA Local bus slots

SL1 & SL2

Equipment panel connector

J39

CPU module slot

SL3

IDE interface LED

J40

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Monitor type select monochrome

JP9

Closed

 

Monitor type select color

JP9

Open

»

Factory configured - do not alter

JP30

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

4MB

(4) 1M x 9

NONE

NONE

NONE

8MB

(4) 1M x 9

(4) 1M x 9

NONE

NONE

12MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

NONE

16MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

NONE

NONE

20MB

(4) 1M x 9

(4) 4M x 9

NONE

NONE

24MB

(4) 1M x 9

(4) 1M x 9

(4) 4M x 9

NONE

24MB

(4) 1M x 9

(4) 4M x 9

(4) 1M x 9

NONE

28MB

(4) 1M x 9

(4) 1M x 9

(4) 4M x 9

(4) 1M x 9

28MB

(4) 1M x 9

(4) 4M x 9

(4) 1M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

NONE

NONE

36MB

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

NONE

36MB

(4) 4M x 9

(4) 4M x 9

(4) 1M x 9

NONE

40MB

(4) 1M x 9

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

40MB

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

(4) 1M x 9

40MB

(4) 4M x 9

(4) 4M x 9

(4) 1M x 9

(4) 1M x 9

48MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

NONE

52MB

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

52MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

(4) 1M x 9

64MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

64MB

(4) 16M x 9

NONE

NONE

NONE

128MB

(4) 16M x 9

(4) 16M x 9

NONE

NONE

196MB

(4) 16M x 9

(4) 16M x 9

(4) 16M x 9

NONE

256MB

(4) 16M x 9

(4) 16M x 9

(4) 16M x 9

(4) 16M x 9

Note: Banks 2 & 3 are located on the CPU module board.

CPU SPEED CONFIGURATION

Speed

JP1

JP6

JP7

25MHz

pins 1 & 2 closed

Open

Open

33MHz

pins 1 & 2 closed

Open

Closed

50iMHz

pins 1 & 2 closed

Closed

Closed

66iMHz

pins 1 & 2 closed

Open

Closed

VESA BUS SPEED CONFIGURATION

CPU speed

JPV3

<=33MHz

Open

> 33MHz

Closed

VESA WAIT STATE CONFIGURATION

Wait states

JPV1

JPV2

0 wait states

Open

Open

1 wait state

Closed

Closed

EQUIPMENT PANEL CONFIGURATION

Description

J39

Ground

pin 1

Power

pin 2

Hard drive LED

pin 3

Not used

pin 4

Power

pin 5

Ground

pin 6

Turbo LED

pin 7

Keyboard inhibit

pin 8

Power

pin 9

Reset button

pin 10