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MB-8500TUD-A (VER. 1.1)

BIOSTAR MICROTECH INTERNATIONAL CORPORATION

MB-8500TUD-A (VER. 1.1)

Device Type

Mainboard

Processor

CX 6X86/CX 6X86L/CX 686MX/AM K5/AM K6/Pentium/Pentium MMX

Processor Speed

75/90/100/120/133/150/166/180/200/233/266MHz

Chip Set

Intel

Video Chip Set

None

Maximum Onboard Memory

256MB (EDO & SDRAM supported)

Maximum Video Memory

None

Cache

256/512KB

BIOS

Award

Dimensions

250mm x 220mm

I/O Options

32-bit PCI slots (5), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, PS/2 mouse interface, serial ports (2), IR connector, USB connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

ATX power connector

ATX

CPU fan power

J14

PS/2 mouse interface

J2

Speaker

J19/pins 1 - 4

Serial port 2

J3

Power LED & keylock

J19/pins 5 - 9

Parallel port

J6

Soft off power supply

J19/pins 10 & 11

Floppy drive interface

J7

Reset switch

J19/pins 12 & 13

Serial port 1

J8

Green PC connector

J19/pins 17 & 18

IDE interface 1

J9

IDE interface LED

J19/pins 20 & 21

IDE interface 2

J10

IR connector

J19/pins 22 - 26

PS/2 mouse port

J11

32-bit PCI slots

PC1 PC5

USB connector

J12

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

CMOS memory normal operation

JP6

Pins 1 & 2 closed

 

CMOS memory clear

JP6

Pins 2 & 3 closed

 

On board battery disabled

JP6

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

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

128MB

(2) 16M x 36

None

SIMM CONFIGURATION (CONT)

Size

Bank 0

Bank 1

136MB

(2) 16M x 36

(2) 1M x 36

144MB

(2) 16M x 36

(2) 2M x 36

160MB

(2) 16M x 36

(2) 4M x 36

192MB

(2) 16M x 36

(2) 8M x 36

256MB

(2) 16M x 36

(2) 16M x 36

Note: Board accepts EDO memory.

DIMM CONFIGURATION

Size

Bank 2

Bank 3

8MB

(1) 1M x 64

None

16MB

(1) 2M x 64

None

16MB

(1) 1M x 64

(1) 1M x 64

24MB

(1) 2M x 64

(1) 1M x 64

32MB

(1) 4M x 64

None

32MB

(1) 2M x 64

(1) 2M x 64

40MB

(1) 4M x 64

(1) 1M x 64

48MB

(1) 4M x 64

(1) 2M x 64

64MB

(1) 8M x 64

None

64MB

(1) 4M x 64

(1) 4M x 64

72MB

(1) 8M x 64

(1) 1M x 64

80MB

(1) 8M x 64

(1) 2M x 64

96MB

(1) 8M x 64

(1) 4M x 64

128MB

(1) 16M x 64

None

128MB

(1) 8M x 64

(1) 8M x 64

136MB

(1) 16M x 64

(1) 1M x 64

144MB

(1) 16M x 64

(1) 2M x 64

160MB

(1) 16M x 64

(1) 4M x 64

192MB

(1) 16M x 64

(1) 8M x 64

256MB

(1) 16M x 64

(1) 16M x 64

Note: Board accepts SDRAM memory.

CACHE CONFIGURATION

Size

Bank 0

TAG

256KB

(2) 32K x 32

Unidentified

512KB

(2) 64K x 32

Unidentified

CPU SPEED SELECTION (CX 6X86)

CPU speed

Clock speed

Multiplier

JP2

JP13

150MHz

60MHz

2x

Closed

1 & 2

166MHz

66MHz

2x

Open

1 & 2

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86L)

CPU speed

Clock speed

Multiplier

JP2

JP13

150MHz

60MHz

2x

Closed

1 & 2

166MHz

66MHz

2x

Open

1 & 2

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86MX)

CPU speed

Clock speed

Multiplier

JP2

JP13

150MHz

60MHz

2x

Closed

1 & 2

166MHz

66MHz

2x

Open

1 & 2

166MHz

60MHz

2.5x

Closed

1 & 2, 3 & 4

200MHz

66MHz

2.5x

Open

1 & 2, 3 & 4

200MHz

60MHz

3x

Closed

3 & 4

233MHz

66MHz

3x

Open

3 & 4

266MHz

66MHz

3.5x

Open

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)

CPU speed

Clock speed

Multiplier

JP2

JP13

90MHz

60MHz

1.5x

Closed

Open

100MHz

66MHz

1.5x

Open

Open

120MHz

60MHz

2x

Closed

1 & 2

133MHz

66MHz

2x

Open

1 & 2

166MHz

66MHz

2.5x

Open

1 & 2, 3 & 4

200MHz

66MHz

3x

Open

3 & 4

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6)

CPU speed

Clock speed

Multiplier

JP2

JP13

166MHz

66MHz

2.5x

Open

1 & 2, 3 & 4

200MHz

66MHz

3x

Open

3 & 4

233MHz

66MHz

3.5x

Open

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

JP2

JP13

90MHz

60MHz

1.5x

Closed

Open

100MHz

66MHz

1.5x

Open

Open

120MHz

60MHz

2x

Closed

1 & 2

133MHz

66MHz

2x

Open

1 & 2

150MHz

60MHz

2.5x

Closed

1 & 2, 3 & 4

166MHz

66MHz

2.5x

Open

1 & 2, 3 & 4

200MHz

66MHz

3x

Open

3 & 4

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL MMX)

CPU speed

Clock speed

Multiplier

JP2

JP13

166MHz

66MHz

2.5x

Open

1 & 2, 3 & 4

200MHz

66MHz

3x

Open

3 & 4

233MHz

66MHz

3.5x

Open

Open

Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION (SINGLE)

Voltage

JP16

3.5v

Open

CPU VOLTAGE SELECTION (DUAL)

Voltage

V core

JP16

3.4v

2.8v

Open

3.4v

2.9v

Pins 1 & 2 closed

3.4v

3.2v

Pins 3 & 4 closed