ELITEGROUP COMPUTER SYSTEMS, INC.

SL 486E

Processor

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

Processor Speed

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

Chip Set

SIS

Max. Onboard DRAM

128MB

Cache

64/128/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit VESA local bus slot (1)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

JP17

Turbo switch

JP20

Speaker

JP18

Turbo LED

JP21

Reset switch

JP19

32-bit VESA Local bus slot

S1

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

System arbitration logic in 85C406

JP11

pins 2 & 3 closed

 

System arbitration logic in 85C406 bypass CPU

JP11

pins 1 & 2 closed

»

Local memory burst mode enabled

JP12

Closed

 

Local memory burst mode disabled

JP12

Open

»

Factory configured - do not alter

JP13

pins 1 & 2 closed

»

Monitor type select color

JP14

Closed

 

Monitor type select monochrome

JP14

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(4) 265K x 9

NONE

2MB

(4) 265K x 9

(4) 265K x 9

4MB

(4) 1M x 9

NONE

5MB

(4) 265K x 9

(4) 1M x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

64MB

(4) 16M x 9

NONE

128MB

(4) 16M x 9

(4) 16M x 9

CACHE CONFIGURATION

Size

Max Cachable

Bank 0

Bank 1

Dirty Bit

TAG

64KB

16MB

(4) 8K x 8

(4) 8K x 8

(1) 16K x 4

(2) 16K x 4

128KB

32MB

(4) 32K x 8

NONE

(1) 16K x 4

(2) 16K x 4

256KB

64MB

(4) 32K x 8

(4) 32K x 8

(1) 16K x 4

(2) 16K x 4

CACHE JUMPER CONFIGURATION

Size

JP1

JP2

JP3

JP4

JP5

JP6

64KB

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 2 & 3

128KB

pins 1 & 2

pins 2 & 3

pins 2 & 3

pins 1 & 2

pins 2 & 3

pins 1 & 2

256KB

pins 2 & 3

pins 2 & 3

pins 2 & 3

pins 2 & 3

pins 2 & 3

pins 4 & 5

Note:Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

JP8

JP9

JP10

80486SX

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

80487SX

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

80486DX

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

ODP486SX

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

80486DX2

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

CPU SPEED CONFIGURATION

Speed

JP7

20MHz

pins 1 & 2 closed

25MHz

pins 1 & 2 closed

33MHz

pins 1 & 2 closed

50i MHz

pins 1 & 2 closed

50MHz

pins 2 & 3 closed

66I MHz

pins 1 & 2 closed