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BIOSTAR MICROTECH INTERNATIONAL CORPORATION

MB-8500TTD

Device Type

Mainboard

Processor

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

Processor Speed

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

Chip Set

Intel

Video Chip Set

None

Maximum Onboard Memory

256MB (EDO & SDRAM supported)

Maximum Video Memory

None

Cache

256/512KB

BIOS

Award

Dimensions

220mm x 220mm

I/O Options

32-bit PCI slots (4), 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, ATX power connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

ATX power connector

ATX

Speaker

J15/pins 1 - 4

PS/2 mouse interface

J2

Power LED & keylock

J15/pins 5 - 9

Parallel port

J6

Soft off power supply

J15/pins 10 & 11

Floppy drive interface

J7

Reset switch

J15/pins 12 & 13

IDE interface 1

J9

Green PC connector

J15/pins 17 & 18

PS/2 mouse port

J10

IDE interface LED

J15/pins 20 & 21

Serial port 1

J11

IR connector

J15/pins 22 - 26

Serial port 2

J12

IDE interface 2

J16

USB connector

J13

32-bit PCI slots

PC1 – PC4

CPU fan power

J14

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

CMOS memory normal operation

JP3

Pins 1 & 2 closed

 

CMOS memory clear

JP3

Pins 2 & 3 closed

 

On board battery disabled

JP3

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 (CON’T)

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 0

Bank 1

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

JP9

JP11

133MHz

55MHz

2x

1 & 2

1 & 2, 3 & 4

150MHz

60MHz

2x

1 & 2

3 & 4, 5 & 6

166MHz

66MHz

2x

1 & 2

1 & 2, 5 & 6

200MHz

75MHz

2x

1 & 2

3 & 4

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86L)

CPU speed

Clock speed

Multiplier

JP9

JP11

133MHz

55MHz

2x

1 & 2

1 & 2, 3 & 4

150MHz

60MHz

2x

1 & 2

3 & 4, 5 & 6

166MHz

66MHz

2x

1 & 2

1 & 2, 5 & 6

200MHz

75MHz

2x

1 & 2

3 & 4

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (CX 6X86MX)

CPU speed

Clock speed

Multiplier

JP9

JP11

150MHz

60MHz

2x

1 & 2

3 & 4, 5 & 6

166MHz

66MHz

2x

1 & 2

1 & 2, 5 & 6

166MHz

60MHz

2.5x

1 & 2, 3 & 4

3 & 4, 5 & 6

200MHz

75MHz

2x

1 & 2

3 & 4

200MHz

66MHz

2.5x

1 & 2, 3 & 4

1 & 2, 5 & 6

200MHz

60MHz

3x

3 & 4

3 & 4, 5 & 6

233MHz

75MHz

2.5x

1 & 2, 3 & 4

3 & 4

233MHz

66MHz

3x

3 & 4

1 & 2, 5 & 6

266MHz

66MHz

3.5x

Open

1 & 2, 5 & 6

266MHz

75MHz

3x

3 & 4

3 & 4

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K5)

CPU speed

Clock speed

Multiplier

JP9

JP11

90MHz

60MHz

1.5x

Open

3 & 4, 5 & 6

100MHz

66MHz

1.5x

Open

1 & 2, 5 & 6

120MHz

60MHz

2x

1 & 2

3 & 4, 5 & 6

133MHz

66MHz

2x

1 & 2

1 & 2, 5 & 6

166MHz

66MHz

2.5x

1 & 2, 3 & 4

1 & 2, 5 & 6

200MHz

66MHz

3x

3 & 4

1 & 2, 5 & 6

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AM K6)

CPU speed

Clock speed

Multiplier

JP9

JP11

166MHz

66MHz

2.5x

1 & 2, 3 & 4

1 & 2, 5 & 6

200MHz

66MHz

3x

3 & 4

1 & 2, 5 & 6

233MHz

66MHz

3.5x

Open

1 & 2, 5 & 6

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

JP9

JP11

90MHz

60MHz

1.5x

Open

3 & 4, 5 & 6

100MHz

66MHz

1.5x

Open

1 & 2, 5 & 6

120MHz

60MHz

2x

1 & 2

3 & 4, 5 & 6

133MHz

66MHz

2x

1 & 2

1 & 2, 5 & 6

150MHz

60MHz

2.5x

1 & 2, 3 & 4

3 & 4, 5 & 6

166MHz

66MHz

2.5x

1 & 2, 3 & 4

1 & 2, 5 & 6

200MHz

66MHz

3x

3 & 4

1 & 2, 5 & 6

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL MMX)

CPU speed

Clock speed

Multiplier

JP9

JP11

166MHz

66MHz

2.5x

1 & 2, 3 & 4

1 & 2, 5 & 6

200MHz

66MHz

3x

3 & 4

1 & 2, 5 & 6

233MHz

66MHz

3.5x

Open

1 & 2, 5 & 6

Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION (SINGLE)

Voltage

JP7

JP8

3.5v

Pins 5 & 6 closed

Pins 1 & 2, 3 & 4, 5 & 6 closed

CPU VOLTAGE SELECTION (DUAL)

Voltage

V core

JP7

JP8

3.4v

2.8v

Open

Open

3.4v

2.9v

Pins 1 & 2 closed

Open

3.4v

3.2v

Pins 3 & 4 closed

Open