MICRO-STAR INTERNATIONAL CO., LTD.

MS-5120

Processor

Pentium

Processor Speed

75/90/100/120/133MHz

Chip Set

Intel

Max. Onboard DRAM

128MB

Cache

256KB

BIOS

AMI

Dimensions

260mm x 220mm

I/O Options

Parallel port, serial ports (2), IDE interfaces (2), 32-bit PCI slots (3), green PC connector, floppy drive interface, PS/2 mouse connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

IDE interface (primary)

CN1

Speaker

JFP pins 7 - 10

IDE interface (secondary)

CN2

Turbo LED

JFP pins 12 & 13

Floppy drive interface

CN3

Turbo switch

JFP pins 15 - 17

Parallel port

CN4

Reset switch

JFP pins 19 & 20

Serial port 2

CN5

IDE interface LED

JFP pins 21 & 22

Serial port 1

CN6

Green PC connector

JG3

PS/2 Mouse connector

CN7

32-bit PCI slots

PCI1 - PCI3

Chassis fan power

JFAN

Voltage regulator module

JVRM

Power LED & keylock

JFP pins 1 - 5

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

PCI bus clock/3

JSCLK

pins 1 & 2 closed

 

PCI bus clock/4

JSCLK

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

4MB

(1) 1M x 36

NONE

NONE

NONE

4MB

NONE

NONE

(1) 1M x 36

NONE

8MB

(1) 2M x 36

NONE

NONE

NONE

8MB

NONE

NONE

(1) 2M x 36

NONE

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

8MB

NONE

NONE

(1) 1M x 36

(1) 1M x 36

16MB

(1) 4M x 36

NONE

NONE

NONE

16MB

NONE

NONE

(1) 4M x 36

NONE

16MB

(1) 2M x 36

(1) 2M x 36

NONE

NONE

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

NONE

NONE

(1) 2M x 36

(1) 2M x 36

24MB

(1) 1M x 36

(1) 1M x 36

(1) 2M x 36

(1) 2M x 36

24MB

(1) 2M x 36

(1) 2M x 36

(1) 1M x 36

(1) 1M x 36

32MB

(1) 8M x 36

NONE

NONE

NONE

32MB

NONE

NONE

(1) 8M x 36

NONE

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

32MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

32MB

NONE

NONE

(1) 4M x 36

(1) 4M x 36

40MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

40MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

48MB

(1) 4M x 36

(1) 4M x 36

(1) 2M x 36

(1) 2M x 36

48MB

(1) 2M x 36

(1) 2M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 16M x 36

NONE

NONE

NONE

64MB

NONE

NONE

(1) 16M x 36

NONE

64MB

(1) 8M x 36

(1) 8M x 36

NONE

NONE

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

64MB

NONE

NONE

(1) 8M x 36

(1) 8M x 36

72MB

(1) 1M x 36

(1) 1M x 36

(1) 8M x 36

(1) 8M x 36

72MB

(1) 8M x 36

(1) 8M x 36

(1) 1M x 36

(1) 1M x 36

80MB

(1) 2M x 36

(1) 2M x 36

(1) 8M x 36

(1) 8M x 36

80MB

(1) 8M x 36

(1) 8M x 36

(1) 2M x 36

(1) 2M x 36

96MB

(1) 4M x 36

(1) 4M x 36

(1) 8M x 36

(1) 8M x 36

96MB

(1) 8M x 36

(1) 8M x 36

(1) 4M x 36

(1) 4M x 36

128MB

(1) 32M x 36

NONE

NONE

NONE

128MB

NONE

NONE

(1) 32M x 36

NONE

128MB

(1) 16M x 36

(1) 16M x 36

NONE

NONE

128MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

128MB

NONE

NONE

(1) 16M x 36

(1) 16M x 36

CACHE CONFIGURATION

Note: Cache is factory installed and not configurable.

CPU SPEED CONFIGURATION

Speed

JK

75MHz

pins 1 & 3, 2 & 4 closed

90MHz

pins 1 & 3 closed

100MHz

pins 2 & 4 closed

120MHz

pins 1 & 3 closed

133MHz

pins 2 & 4 closed

CPU VOLTAGE CONFIGURATION

Voltage

JVCC3

3.4v

Closed

3.5v

Open

BUS/CORE RATIO CONFIGURATION

P54C/CQS/CS

P54CS POR(C-step)

JC1

JC2

2/3

2/3

Open

Open

1/2

1/2

Closed

Open

1/3

1/3

Open

Closed

1/4

2/5

Closed

Closed

VOLTAGE REGULATOR MODULE PIN IDENTIFICATION

Pin

Purpose

Pin

Purpose

1

VSS

16

VSS

2

VSS

17

VSS

3

ND

18

V/IO

4

V/IO

19

V/IO

5

3.3v

20

3.3v

6

3.3v

21

3.3v

7

VCORE

22

VCORE

8

VCORE

23

VCORE

9

VSS

24

VCORE

10

VCORE

25

VCORE

11

PRGOOD

26

UPVRM#

12

SENSE

27

DISABLE

13

VSS

28

VSS

14

5v

29

5v

15

5v

30

5v

Note: The purpose of the Voltage Regulator Module is to allow different voltage processors to be supported by the motherboard.