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3486-UCF REV. C

DIAMOND FLOWER, INC.

3486-UCF REV. C

Processor

80386DX/80486SX/80487SX/80486DX/80486DX2/Pentium Overdrive

Processor Speed

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

Chip Set

UMC

Max. Onboard DRAM

32MB

Cache

64/128/256KB

BIOS

AMI

Dimensions

254mm x 218mm

I/O Options

None

NPU Options

80387DX/CX487DLC

CONNECTIONS

Purpose

Location

Purpose

Location

Speaker

J1

Turbo LED

J4

Reset switch

J2

External battery

J8

Power LED & keylock

J3

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

CMOS memory normal operation

J7

pins 2 & 3 closed

 

CMOS memory clear

J7

pins 1 & 2 closed

80486SX-20 not installed

JP4

Open

 

80486SX-20 installed

JP4

Closed

Monitor type select color

JP9

Closed

 

Monitor type select monochrome

JP9

Open

80486DX not installed

JP10

Open

 

80486DX installed

JP10

Closed

Pentium Overdrive not installed

jp11

Open

 

Pentium Overdrive installed

jp11

Closed

Intel 80386DX-33 or CX486DLC-40 not installed

JP12

pins 2 & 3 closed

 

Intel 80386DX-33 or CX486DLC-40 installed

JP12

pins 1 & 2 closed

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

Bank 0

Bank 1

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

W1

W2

W3

W4

64KB

pins 2 & 3 closed

Open

Open

pins 1 & 2 closed

128KB

pins 1 & 2 closed

Open

Closed

pins 2 & 3 closed

256KB

pins 2 & 3 closed

Closed

Closed

pins 2 & 3 closed

CPU TYPE CONFIGURATION

Type

JP6

80386

Open

80486

Closed

CPU TYPE CONFIGURATION (80486 ONLY)

Type

JP1

JP2

JP3

80486SX

Open

pins 2 & 3 closed

Open

80487SX

pins 2 & 3 closed

pins 1 & 2 closed

Closed

80486DX

pins 1 & 2 closed

pins 1 & 2 closed

Closed

80486DX2

pins 1 & 2 closed

pins 1 & 2 closed

Closed

NPU CONFIGURATION (80387)

Setting

JP5

JP7

Disabled

Open

Open

Enabled

Closed

Closed