JOINDATA SYSTEMS, INC.

G386U

Processor

80386DX

Processor Speed

33/40MHz

Chip Set

UMC

Max. onboard DRAM

32MB

Cache

32/64/128/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

80387DX

CONNECTIONS

Purpose

Location

Purpose

Location

Reset switch

J9

Speaker

J12

Turbo LED

J10

Power LED & keylock

J13

Turbo switch

J11

External battery

J14

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

»

Factory configured - do not alter

J1

Unknown

»

Factory configured - do not alter

J2

Unknown

»

NPU enabled

W1 & W10

Closed

 

NPU disabled

W1 & W10

Open

»

Monitor type select color

W11

Closed

 

Monitor type select monochrome

W11

Open

»

CMOS memory normal operation (Internal Battery)

W9

Closed

 

CMOS memory normal operation (External Battery)

W9

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

20MB

(4) 1M x 9

(4) 4M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

U21, U22, U23, & U24

U15, U16, U17, & U18

TAG

32KB

(4) 8K x 8

NONE

(2) 16K x 4

64KB

(4) 8K x 8

(4) 8K x 8

(2) 16K x 4

128KB

(4) 32K x 8

NONE

(2) 64K x 4

256KB

(4) 32K x 8

(4) 32K x 8

(2) 64K x 4

Note:U21 - U24 and U15 - U18 may be located on the system board.

CACHE JUMPER CONFIGURATION

Size

W3

W4

W5

W6

W7

32KB

pins 1 & 2

pins 1 & 2

pins 1 & 2

pins 2 & 3

Open

64KB

pins 2 & 3

pins 1 & 2

pins 1 & 2

pins 1 & 2

Open

128KB

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 1 & 2

pins 2 & 3

Note:Pins designated should be in the closed position.

NPU CLOCK CONFIGURATION

Mode

OSC2

W8

W9

Synchronous

Not installed

pins 1 & 2 closed

Open

Asynchronous 25MHz

50MHz

pins 2 & 3 closed

Closed

Asynchronous 33HMz

66MHz

pins 2 & 3 closed

Closed