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3486-UCF, 3486-UCF/Q Motherboard Settings and Configuration






DIAMOND FLOWER, INC.

3486-UCF, 3486-UCF/Q

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

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








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