TMC RESEARCH CORPORATION

PAT48SG (VER. 1.1), PAT48SG4(VER. 1.1B)

Processor

CX486SX/SL80486SX/80486SX/CX486DX/SL80486DX/80486DX/SL80486DX280486DX2/80486DX4/Pentium Overdrive

Processor Speed

25/33/40/50(internal)/50/66(internal)/83(internal)/100(internal)MHz

Chip Set

Unidentified

Max. Onboard DRAM

128MB

Cache

128/256KB

BIOS

Unidentified

Dimensions

254mm x 218mm

I/O Options

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

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

IDE interface LED

J4 pins 10 & 20

IDE interface LED

J3

Power LED & keylock

J4 pins 11 - 15

Speaker

J4 pins 1 - 4

Green PC connector

J5

Turbo switch

J4 pins 7 & 17

Green PC LED

J6

Turbo LED

J4 pins 8 & 18

32-bit VESA local bus slots

SL1 - SL3

Reset switch

J4 pins 9 & 19

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Battery type select internal

JP21

pins 1 & 2 closed

 

CMOS memory clear

JP21

pins 2 & 3 closed

 

Battery type select external

JP21

Open

»

Monitor type select color

JP22

Closed

 

Monitor type select monochrome

JP22

Open

»

Factory configured - do not alter

JP23

N/A

»

Factory configured - do not alter

JP26

N/A

»

Factory configured - do not alter

JP27

N/A

»

Factory configured - do not alter

JP28

N/A

»

Factory configured - do not alter

JP29

N/A

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

(1) 512K x 36

NONE

NONE

NONE

4MB

(1) 256K x 36

(1) 256K x 36

(1) 512K x 36

NONE

4MB

(1) 512K x 36

NONE

(1) 512K x 36

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

(1) 512K x 36

NONE

(1) 1M x 36

NONE

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

8MB

(1) 2M x 36

NONE

NONE

NONE

10MB

(1) 256K x 36

(1) 256K x 36

(1) 1M x 36

(1) 1M x 36

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

NONE

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 2M x 36

NONE

(1) 2M x 36

NONE

16MB

(1) 4M x 36

NONE

NONE

NONE

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

(1) 512K x 36

NONE

(1) 4M x 36

NONE

20MB

(1) 1M x 36

(1) 4M x 36

NONE

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

(1) 8M x 36

NONE

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

(1) 8M x 36

NONE

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) 16M x 36

NONE

NONE

NONE

64MB

(1) 4M x 36

(1) 4M x 36

(1) 8M x 36

NONE

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

64MB

(1) 8M x 36

NONE

(1) 8M x 36

NONE

65MB

(1) 256K x 36

(1) 16M x 36

NONE

NONE

68MB

(1) 1M x 36

(1) 16M x 36

NONE

NONE

72MB

(1) 1M x 36

(1) 1M x 36

(1) 16M x 36

NONE

80MB

(1) 4M x 36

(1) 16M x 36

NONE

NONE

96MB

(1) 4M x 36

(1) 4M x 36

(1) 16M x 36

NONE

128MB

(1) 16M x 36

(1) 16M x 36

NONE

NONE

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

CACHE RESISTOR CONFIGURATION

Size

RN128

RN256

128KB

Installed

Not installed

256KB

Not installed

Installed

CPU TYPE CONFIGURATION

Type

JP5

JP6

JP7

JP8

JP9

CX486SX

2 & 3, 4 & 5

2 & 3

1 & 2, 3 & 4

2 & 3

2 & 3

SL80486SX

3 & 4

4 & 5

2 & 3

2 & 3

2 & 3

80486SX

Open

Open

Open

2 & 3

2 & 3

CX486DX

2 & 3

2 & 3

1 & 2, 3 & 4

1 & 2

2 & 3

SL80486DX

3 & 4

4 & 5

2 & 3

1 & 2

2 & 3

80486DX

Open

Open

Open

1 & 2

2 & 3

SL80486DX2

3 & 4

4 & 5

2 & 3

1 & 2

2 & 3

80486DX2

1 & 2, 3 & 4

4 & 5

2 & 3

1 & 2

1 & 2

80486DX4

3 & 4

4 & 5

2 & 3

1 & 2

2 & 3

Pentium Overdrive

3 & 4

1 & 2

2 & 3

1 & 2

1 & 2

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)

Type

JP10

JP11

JP12

JP13

JP14

CX486SX

Closed

Open

2 & 3

2 & 3

Open

SL80486SX

Closed

1 & 2

Open

Open

Open

80486SX

Closed

Open

Open

Open

Open

CX486DX

Closed

Open

2 & 3

2 & 3

2 & 3

SL80486DX

Closed

1 & 2

Open

Open

2 & 3

80486DX

Closed

Open

Open

Open

2 & 3

SL80486DX2

Closed

1 & 2

Open

Open

2 & 3

80486DX2

Closed

2 & 3

Open

1 & 2

2 & 3

80486DX4

Open

1 & 2

Open

Open

2 & 3

Pentium Overdrive

Closed

Open

1 & 2

1 & 2

1 & 2

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION (CON’T)

Type

JP16

JP18

JP19

JP24

JP25

CX486SX

Open

Open

Open

1 & 2

2 & 3

SL80486SX

Open

Open

Open

2 & 3

1 & 2

80486SX

Open

Open

Open

2 & 3

1 & 2

CX486DX

Open

Open

Closed

1 & 2

2 & 3

SL80486DX

Open

Open

Closed

2 & 3

1 & 2

80486DX

Open

Open

Closed

2 & 3

1 & 2

SL80486DX2

Open

Open

Closed

2 & 3

1 & 2

80486DX2

Closed

Closed

Closed

2 & 3

1 & 2

80486DX4

Open

Open

Closed

2 & 3

1 & 2

Pentium Overdrive

Open

Open

Closed

1 & 2

1 & 2

Note: Pins designated should be in the closed position.

CPU SPEED CONFIGURATION

Speed

JP1

JP2

JP3

JP4

JP30

JP31

25MHz

Open

Closed

Closed

Open

1 & 2

1 & 2

33MHz

Open

Open

Closed

Closed

1 & 2

1 & 2

40MHz

Open

Closed

Open

Open

2 & 3

2 & 3

50iMHz

Open

Closed

Closed

Open

1 & 2

1 & 2

50MHz

Closed

Closed

Closed

Open

2 & 3

2 & 3

66iMHz

Open

Open

Closed

Closed

1 & 2

1 & 2

83iMHz

Open

Open

Closed

Closed

1 & 2

1 & 2

100iMHz

Open

Open

Closed

Closed

1 & 2

1 & 2

100iMHz

Closed

Closed

Closed

Open

2 & 3

2 & 3

Note: Pins designated should be in the closed position.

CPU CORE FREQUENCY CONFIGURATION

CPU Type

JP15

Non 80486DX4

Open

80486DX4-33/83

pins 2 & 3 closed

80486DX4-33/100

Open

80486DX4-50/100

pins 1 & 2 closed