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R486 VLQMBC

RELIALOGIC CORPORATION PRIVATE, LTD.

R486 VLQMBC

Processor

80486SX/80486DX/80486DX2

Processor Speed

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

Chip Set

ALI

Max. Onboard DRAM

32MB

Cache

64/128/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

32-bit VESA local bus slots (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Power LED & keylock

J1

Reset switch

J5

Speaker

J2

External battery

JP17

Turbo switch

J3

32-bit VESA Local bus slots

SL1 & SL2

Turbo LED

J4

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Monitor type select color

JP12

Closed

 

Monitor type select monochrome

JP12

Open

CMOS memory normal operation

JP16

pins 1 & 2 closed

 

CMOS memory clear

JP16

pins 2 & 3 closed

Factory configured - do not alter

JP33

pins 2 & 4 closed

Weitek Power 9000 VLB card not installed

JP89

Closed

 

Weitek Power 9000 VLB card installed

JP89

Open

Factory configured - do not alter

JP94

pins 1 & 2 closed

Note: The location of JP94 is unidentified.

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

20MB

(4) 1M x 9

(4) 4M x 9

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

U6 to U9

U10 to U13

TAG

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

128KB

(4) 32K x 8

NONE

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP7

JP8

64KB

pins 2 & 3 closed

pins 2 & 4 closed

128KB

pins 1 & 2 closed

pins 2 & 3 closed

256KB

pins 1 & 2 closed

pins 1 & 2 closed

CPU SPEED CONFIGURATION

Speed

JP2

JP3

JP4

ID2

ID3

JP72

25MHz

Pins 2 & 3 closed

Open

Open

Closed

Open

Closed

33MHz (SX)

Pins 2 & 3 closed

Open

Open

Closed

Open

Open

33MHz

Pins 1 & 2, 3 & 4 closed

Pins 2 & 3 closed

Open

Closed

Open

Open

50iMHz

Pins 2 & 3 closed

Open

Open

Closed

Open

Closed

66iMHz

Pins 1 & 2, 3 & 4 closed

Pins 2 & 3 closed

Open

Closed

Open

Open