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4386-VC-HD

UNIDENTIFIED

4386-VC-HD

Processor

80386DX/80486SX/80487SX/80486DX/80486DX2

Processor Speed

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

Chip Set

VIA

Max. Onboard DRAM

128MB

Cache

64/128/256KB

BIOS

AMI/Award

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80387DX

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo LED

J5

Speaker

J8

Turbo switch

J6

Power LED & keylock

J9

Reset switch

J7

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

CMOS memory normal operation

J1

Open

 

CMOS memory clear

J1

Closed

»

Monitor type select monochrome/EGA/VGA

J2

Open

 

Monitor type select color

J2

Closed

»

NPU synchronous with CPU

J40

pins 1 & 2 closed

 

NPU asynchronous with CPU

J40

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(4) 256K x 9

NONE

2MB

(4) 256K x 9

(4) 256K x 9

5MB

(4) 256K x 9

(4) 1M x 9

17MB

(4) 256K x 9

(4) 4M x 9

65MB

(4) 256K x 9

(4) 16M x 9

4MB

(4) 1M x 9

NONE

5MB

(4) 1M x 9

(4) 256K x 9

8MB

(4) 1M x 9

(4) 1M x 9

20MB

(4) 1M x 9

(4) 4M x 9

68MB

(4) 1M x 9

(4) 16M x 9

16MB

(4) 4M x 9

NONE

17MB

(4) 4M x 9

(4) 256K x 9

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

80MB

(4) 4M x 9

(4) 16M x 9

64MB

(4) 16M x 9

NONE

65MB

(4) 16M x 9

(4) 256K x 9

68MB

(4) 16M x 9

(4) 1M x 9

80MB

(4) 16M x 9

(4) 4M x 9

128MB

(4) 16M x 9

(4) 16M x 9

Note: 16M x 4 SIMMs can only be used if an 80486 is installed.

CACHE CONFIGURATION

Size

Bank 0

Bank 1

M10

TAG

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

(1) 8K x 8

128KB

(4) 32K x 8

NONE

(1) 8K x 8

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

(1) 32K x 8

Note: M10 is optional and does not have to be installed.

CACHE JUMPER CONFIGURATION

Size

JS1

JS2

JS3

JS4

64KB

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

128KB

pins 1 & 2 closed

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

256KB

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

pins 1 & 2 closed

CPU SPEED/TYPE CONFIGURATION

Type

JC1

JC2

JC3

80386DX-33

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

80386DX-40

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

80486SX-20

pins 2 & 3 closed

pins 2 & 3 closed

Open

80486SX-25

pins 2 & 3 closed

pins 2 & 3 closed

Open

80486SX-33

pins 2 & 3 closed

pins 2 & 3 closed

Open

80487SX-20

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

80487SX-25

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

80486DX-20

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

80486DX-25

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

80486DX-33

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

80486DX-50

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

80486DX2-50

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

80486DX2-66

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

CPU SPEED/TYPE CONFIGURATION (CON’T)

Type

JK1

JK2

JK3

JK4

80386DX-33

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

80386DX-40

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

80486SX-20

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

80486SX-25

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

80486SX-33

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

80487SX-20

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

80487SX-25

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

80486DX-20

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

80486DX-25

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

80486DX-33

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

80486DX-50

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed

80486DX2-50

pins 1 & 2 closed

pins 1 & 2 closed

pins 2 & 3 closed

pins 1 & 2 closed

80486DX2-66

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

pins 1 & 2 closed