...because we can't all be on the bleeding edge...





486F38X

FREE COMPUTER TECHNOLOGY, INC.

486F38X

Processor

CX486S/80486SX/80486SX2/80487SX/CX486DX/80486DX/CX486DX2/ 80486DX2/80486DX4/Pentium Overdrive

Processor Speed

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

Chip Set

OPTI

Max. Onboard DRAM

64MB

Cache

128/256/512KB

BIOS

Award

Dimensions

330mm x 218mm

I/O Options

32-bit VESA local bus slots (3), green PC connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Turbo switch

J1

Break switch

J6

Turbo LED

J2

External battery

J7

Reset switch

J3

Green PC connector

JP2

Power LED & keylock

J4

Green PC connector

JP3

Speaker

J5

32-bit VESA Local bus slots

SL1 - SL3

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Ľ

CMOS memory normal operation

JP4

pins 2 & 3 closed

 

CMOS memory clear

JP4

pins 1 & 2 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(1) 256K x 36

NONE

NONE

NONE

2MB

(1) 256K x 36

(1) 256K x 36

NONE

NONE

2MB

NONE

(1) 512K x 36

NONE

NONE

4MB

(1) 1M x 36

NONE

NONE

NONE

5MB

(1) 256K x 36

(1) 1M x 36

NONE

NONE

6MB

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

NONE

6MB

NONE

(1) 512K x 36

(1) 1M x 36

NONE

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

8MB

NONE

(1) 2M x 36

NONE

NONE

10MB

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

10MB

(1) 256K x 36

(1) 256K x 36

NONE

(1) 2M x 36

10MB

NONE

(1) 512K x 36

(1) 1M x 36

(1) 1M x 36

10MB

NONE

(1) 512K x 36

NONE

(1) 2M x 36

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

NONE

12MB

NONE

(1) 2M x 36

(1) 1M x 36

NONE

16MB

NONE

(1) 2M x 36

NONE

(1) 2M x 36

16MB

NONE

(1) 2M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 4M x 36

NONE

NONE

NONE

16MB

(1) 1M x 36

(1) 1M x 36

NONE

(1) 2M x 36

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

17MB

(1) 256K x 36

(1) 4M x 36

NONE

NONE

18MB

(1) 256K x 36

(1) 256K x 36

(1) 4M x 36

NONE

18MB

NONE

(1) 512K x 36

(1) 4M x 36

NONE

20MB

(1) 1M x 36

(1) 4M x 36

NONE

NONE

24MB

NONE

(1) 2M x 36

(1) 4M x 36

NONE

24MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

NONE

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

32MB

NONE

(1) 8M x 36

NONE

NONE

36MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

NONE

40MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

40MB

(1) 1M x 36

(1) 1M x 36

NONE

(1) 8M x 36

40MB

NONE

(1) 2M x 36

(1) 4M x 36

(1) 4M x 36

40MB

NONE

(1) 2M x 36

NONE

(1) 8M x 36

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 4M x 36

(1) 4M x 36

NONE

(1) 8M x 36

64MB

NONE

(1) 8M x 36

NONE

(1) 8M x 36

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

128KB

(4) 32K x 8

NONE

(1) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 16K x 8 or (1) 32K x 8

256KB

(4) 64K x 8

NONE

(1) 16K x 8 or (1) 32K x 8

512KB

(4) 64K x 8

(4) 64K x 8

(1) 32K x 8

512KB

(4) 128K x 8

NONE

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP12

JP21

128KB

pins 1 & 2 closed

Open

256KB

pins 2 & 3 closed

Open

256KB

pins 1 & 2, 3 & 4 closed

Open

512KB

pins 2 & 3, 4 & 5 closed

Closed

512KB

pins 1 & 2, 3 & 4 closed

Closed

CPU TYPE CONFIGURATION

Type

JP6

JP7

CX486S

1 & 2, 3 & 4

2 & 3, 4 & 5, 7 & 8, 9 & 10

80486SX/SX2

2 & 3, 4 & 5

1 & 2, 3 & 4, 6 & 7, 8 & 9

CX486DX

1 & 2, 3 & 4

2 & 3, 4 & 5, 7 & 8, 9 & 10

CX486DX2

1 & 2, 3 & 4

2 & 3, 4 & 5, 7 & 8, 9 & 10

80486DX/DX2

2 & 3, 4 & 5

1 & 2, 3 & 4, 6 & 7, 8 & 9

80486DX4 (2x)

2 & 3, 4 & 5

1 & 2, 3 & 4, 6 & 7, 8 & 9

80486DX4 (2.5x)

2 & 3, 4 & 5

1 & 2, 3 & 4, 6 & 7, 8 & 9

80486DX4 (3x)

2 & 3, 4 & 5

1 & 2, 3 & 4, 6 & 7, 8 & 9

Overdrive

2 & 3, 4 & 5

1 & 2, 3 & 4, 6 & 7, 8 & 9

Pentium Overdrive

1 & 2, 4 & 5

1 & 2, 3 & 4, 6 & 7, 8 & 9

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CONíT)

Type

JP11

JP14

JP15

CX486S

Open

2 & 3, 5 & 6

3 & 4

80486SX/SX2

Open

2 & 3, 4 & 5, 6 & 7

3 & 4

CX486DX

Open

3 & 4

1 & 2, 5 & 6

CX486DX2

Open

1 & 2, 5 & 6

1 & 2, 3 & 4

80486DX/DX2

Open

1 & 2, 4 & 5, 6 & 7

3 & 4

80486DX4 (2x)

2 & 3

1 & 2, 4 & 5, 6 & 7

3 & 4

80486DX4 (2.5x)

1 & 2

1 & 2, 4 & 5, 6 & 7

3 & 4

80486DX4 (3x)

Open

1 & 2, 4 & 5, 6 & 7

3 & 4

Overdrive

Open

1 & 2, 4 & 5, 6 & 7

3 & 4

Pentium Overdrive

Open

1 & 2, 4 & 5, 6 & 7

4 & 5

Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION

Speed

JP17

JP19

JP20

25MHz

Closed

Open

Closed

33MHz

Closed

Closed

Open

40MHz

Open

Open

Closed

50iMHz

Closed

Open

Closed

50MHz

Open

Closed

Open

66iMHz

Closed

Closed

Open

BUS SPEED CONFIGURATION

Speed

JP24

<= 33MHz

Open

> 33MHz

Closed