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386-25UN/C

DIAMOND FLOWER, INC.

386-25UN/C

Processor

80386DX

Processor Speed

25MHz

Chip Set

Unidentified

Max. Onboard DRAM

12MB

Cache

64KB (on external cache card)

BIOS

Unidentified

Dimensions

330mm x 218mm

I/O Options

32-bit external cache card slot

NPU Options

80387/3167

CONNECTIONS

Purpose

Location

Purpose

Location

External keyboard

J1

Turbo switch

J6 or J13

CPU clock

J2

Speaker

J7

Power LED & keylock

J3

External battery

J14

Reset switch

J4 or J11

32-bit external cache card

S1

Turbo LED

J5

   

USER CONFIGURABLE SETTINGS

Function

Jumper/Switch

Position

NPU type select 3167 or none

J9

Closed

 

NPU type select 80387

J9

Open

Monitor type select monochrome

J10

Open

 

Monitor type select color

J10

Closed

Battery type select internal

J12

pins 2 & 3 closed

 

Battery type select external

J12

pins 1 & 2 closed

Factory configured - do not alter (revision 0 boards only)

JP22

pins 1 & 2 closed

Factory configured - do not alter (revision 0 boards only)

JP23

Closed

DRAM type select 1M x 9

SW1/1

Off

 

DRAM type select 256K x 9

SW1/1

On

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

1MB

(4) 256K x 9

NONE

NONE

2MB

(4) 256K x 9

(4) 256K x 9

NONE

3MB

(4) 256K x 9

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

NONE

8MB

(4) 1M x 9

(4) 1M x 9

NONE

12MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

DRAM BANK CONFIGURATION

Bank

sw1/2

sw1/3

0, 1, & 2

Off

Off

0 & 1

Off

On

0

On

On

DRAM SPEED CONFIGURATION

Speed

sw1/4

sw1/5

80ns

Off

Off

100ns

On

On

CACHE/PAGE MODE CONFIGURATION

Mode

JP1 - JP20

JP21

Page

Closed

pins 1 & 2 closed

Cache

Open

pins 2 & 3 closed

CACHE CONFIGURATION

Setting

JP7

Enabled

Closed

Disabled

Open

CACHE JUMPER CONFIGURATION

Size

JP1

JP2

JP3

JP4

JP5

JP6

32KB

1 & 2

Open

Open

Open

Closed

1 & 2

64KB

2 & 3

Closed

Closed

Closed

Open

2 & 3

Note:Pins designated should be in the closed position.