MYLEX CORPORATION

MSL486 SLIMLINE

Processor

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

Processor Speed

16/20/25/33/50 (Internal)/66 (Internal)

Chip Set

Headland

Max. onboard DRAM

32MB

Cache

None

BIOS

Mylex

Dimensions

330mm x 218mm

I/O Options

Floppy drive interface, IDE interface, parallel port,

serial ports (2), VGA port

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo LED

P1

Parallel port

P7

Power LED & keylock

P2

Serial port (COM2)

P8

Speaker

P3

Serial port (COM1)

P9

IDE interface LED

P4

IDE interface

P12

Reset switch

P5

Floppy drive interface

P13

VGA port

P6

 

 

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

Factory configured - do not alter

J5

N/A

»

Factory configured - do not alter

J11

N/A

»

Parallel port select unidirectional (printer)

J12 & J13

Closed

 

Parallel port select bi-directional

J12 & J13

Open

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) 256K x 9

(4) 1M x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

17MB

(4) 256K x 9

(4) 4M x 9

20MB

(4) 1M x 9

(4) 4M x 9

32MB

(4) 4M x 9

(4) 4M x 9

VRAM CONFIGURATION

Size

VRAM (U5,U6,U9,U10)

J6

J7

512KB

None

On

Off

1MB

(4) 256K x 4

Off

On

CPU SPEED CONFIGURATION

Size

J8

J9

J10

16MHz

pins 2 & 3 closed

pins 1 & 2 closed

pins 2 & 3 closed

20MHz

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

25MHz

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

33MHz

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

50i MHz

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

66i MHz

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

CPU TYPE CONFIGURATION

CPU Type

J1

J2

J3

J4

80486SX

Open

Open

pins 2 & 3 closed

Open

80487SX

Open

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

80486DX

Open

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

ODP486SX

Open

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

80486DX2

Open

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed