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MB-8500 TUR (VER. 2.1)

BIOSTAR MICROTECH INTERNATIONAL CORPORATION

MB-8500 TUR (VER. 2.1)

Device Type

Mainboard

Processor

CX 6X86/AM K5/Pentium/Pentium MMX

Processor Speed

75/90/100/120/133/150/166/180/200MHz

Chip Set

Unidentified

Video Chip Set

None

Maximum Onboard Memory

128MB (EDO & SDRAM supported)

Maximum Video Memory

None

Cache

256/512KB

BIOS

AMI

Dimensions

285mm x 220mm

I/O Options

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

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse interface

J1

Speaker

J16/pins 1 - 4

Floppy drive interface

J7

Power LED & keylock

J16/pins 5 - 9

IDE interface 1

J8

Turbo LED

J16/pins 10 & 11

USB connector

J9

Reset switch

J16/pins 12 & 13

Serial port 1

J10

Green PC LED

J16/pins 14 & 15

Serial port 2

J11

Green PC connector

J16/pins 17 & 18

Parallel port

J12

IDE interface LED

J16/pins 20 & 21

IDE interface 2

J13

Turbo switch

J16/pins 23 & 24

Chassis fan power

J14

32-bit PCI slots

PC1 PC3

IR connector

J15

Cache slot

SL1

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter

J6

Unidentified

Factory configured - do not alter

JP4

Unidentified

Factory configured - do not alter

JP5

Unidentified

Factory configured - do not alter

JP9

Unidentified

Factory configured - do not alter

JP10

Unidentified

CMOS memory normal operation

JP12

Open

 

CMOS memory clear

JP12

Closed

 

Flash BIOS select 5v

JP13

Pins 1 & 2 closed

 

Flash BIOS select 12v

JP13

Pins 2 & 3 closed

 

Flash BIOS select 0v or EPROM

JP13

Open

SIMM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(2) 1M x 36

None

16MB

(2) 2M x 36

None

16MB

(2) 1M x 36

(2) 1M x 36

24MB

(2) 2M x 36

(2) 1M x 36

32MB

(2) 4M x 36

None

32MB

(2) 2M x 36

(2) 2M x 36

40MB

(2) 4M x 36

(2) 1M x 36

48MB

(2) 4M x 36

(2) 2M x 36

64MB

(2) 8M x 36

None

64MB

(2) 4M x 36

(2) 4M x 36

SIMM CONFIGURATION (CONT)

Size

Bank 0

Bank 1

72MB

(2) 8M x 36

(2) 1M x 36

80MB

(2) 8M x 36

(2) 2M x 36

96MB

(2) 8M x 36

(2) 4M x 36

128MB

(2) 8M x 36

(2) 8M x 36

Note: Board accepts EDO memory.

DIMM CONFIGURATION

Size

Bank 2

8MB

(1) 1M x 64

16MB

(1) 2M x 64

32MB

(1) 4M x 64

CACHE CONFIGURATION

Size

Bank 0

SL1

TAG

256KB

(2) 32K x 32

Not installed

Unidentified

512KB

(2) 32K x 32

256KB module installed

Unidentified

CACHE JUMPER CONFIGURATION

Size

JP11

256KB

Open

512KB

Closed

CPU SPEED SELECTION (CX 6X86)

CPU speed

Clock speed

Multiplier

JP1

JP2

JP6/

pins 1 & 2

JP6/

pins 3 & 4

120MHz

50MHz

2x

Open

Open

Closed

Closed

133MHz

55MHz

2x

Open

Open

Open

Open

150MHz

60MHz

2x

Open

Open

Closed

Open

166MHz

66MHz

2x

Open

Open

Open

Closed

CPU SPEED SELECTION (AM K5)

CPU speed

Clock speed

Multiplier

JP1

JP2

JP6/

pins 1 & 2

JP6/

pins 3 & 4

75MHz

66MHz

1x

Closed

Open

Open

Closed

75MHz

50MHz

1.5x

Open

Open

Closed

Closed

90MHz

55MHz

1.5x

Open

Open

Open

Open

90MHz

60MHz

1.5x

Open

Open

Closed

Open

100MHz

66MHz

1.5x

Open

Open

Open

Closed

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

JP1

JP2

JP6/

pins 1 & 2

JP6/

pins 3 & 4

75MHz

50MHz

1.5x

Open

Open

Closed

Closed

90MHz

60MHz

1.5x

Open

Open

Closed

Open

100MHz

66MHz

1.5x

Open

Open

Open

Closed

120MHz

60MHz

2x

Closed

Open

Closed

Open

133MHz

66MHz

2x

Closed

Open

Open

Closed

150MHz

60MHz

2.5x

Closed

Closed

Closed

Open

166MHz

66MHz

2.5x

Closed

Closed

Open

Closed

180MHz

60MHz

3x

Open

Closed

Closed

Open

200MHz

66MHz

3x

Open

Closed

Open

Closed

CPU SPEED SELECTION (INTEL MMX)

CPU speed

Clock speed

Multiplier

JP1

JP2

JP6/

pins 1 & 2

JP6/

pins 3 & 4

166MHz

66MHz

2.5x

Closed

Closed

Open

Closed

180MHz

60MHz

3x

Open

Closed

Closed

Open

200MHz

66MHz

3x

Open

Closed

Open

Closed

CPU TYPE SELECTION

Type

JP7

JP14

JP15

AMD

Open

Pins 1 & 2 closed

Pins 1 & 2, 3 & 4 closed

Cyrix

Open

Pins 1 & 2 closed

Pins 1 & 2, 3 & 4 closed

P54C/CQS/CT

Open

Pins 1 & 2 closed

Pins 1 & 2, 3 & 4 closed

P55C/CT

Closed

Pins 2 & 3 closed

Open

CPU VOLTAGE SELECTION

Voltage

JP8

3.4v

Closed

3.5v

Open