ADVANCED LOGIC RESEARCH, INC.

EVOLUTION IV 4/33 ISA VERSION

Processor

80486SX/80487SX/80486DX/80486DX2

Processor Speed

20/25/33/40/50(internal)/66(internal)MHz

Chip Set

Intel

Max. Onboard DRAM

52MB

Cache

None

BIOS

Phoenix

Dimensions

356mm x 318mm

I/O Options

32-Bit VESA local bus slots (2), external cache card slot, floppy drive interface, hard drive interface, parallel port, PS/2 mouse port, serial ports (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Parallel port

CN1

Floppy drive interface

CN5

Serial port 1

CN2

Hard drive interface

CN6

Serial port 2

CN3

32-bit VESA local bus slots

S1 & S2

PS/2 mouse port

CN4

External cache card slot

S3

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

4MB

(8) 1M x 4

NONE

NONE

NONE

8MB

(8) 1M x 4

(1) 1M x 36

NONE

NONE

12MB

(8) 1M x 4

(1) 1M x 36

(1) 1M x 36

NONE

16MB

(8) 1M x 4

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

20MB

(8) 1M x 4

(1) 4M x 36

NONE

NONE

24MB

(8) 1M x 4

(1) 1M x 36

(1) 4M x 36

NONE

36MB

(8) 1M x 4

(1) 4M x 36

(1) 4M x 36

NONE

40MB

(8) 1M x 4

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

52MB

(8) 1M x 4

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

CPU TYPE CONFIGURATION

Type

PS0

PS1

80486SX

pins 2 & 3 closed

pins 1 & 2 closed

80487SX

pins 2 & 3 closed

pins 2 & 3 closed

80486DX

pins 1 & 2 closed

pins 2 & 3 closed

80486DX2

pins 1 & 2 closed

pins 2 & 3 closed

No PGA installed

pins 1 & 2 closed

pins 1 & 2 closed

CPU SPEED CONFIGURATION

Speed

FS0

FS1

20MHz

pins 1 & 2 closed

pins 1 & 2 closed

25MHz

pins 2 & 3 closed

pins 1 & 2 closed

33MHz

pins 1 & 2 closed

pins 2 & 3 closed

40MHz

pins 2 & 3 closed

pins 2 & 3 closed

50iMHz

pins 2 & 3 closed

pins 1 & 2 closed

66iMHz

pins 1 & 2 closed

pins 2 & 3 closed