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MB-8500 TUC-A (VER. 1)

BIOSTAR MICROTECH INTERNATIONAL CORPORATION

MB-8500 TUC-A (VER. 1)

Processor

CX M1/AM K5/Pentium

Processor Speed

75/83/90/100/110/120/133/150/166/180/200MHz

Chip Set

Unidentified

Video Chip Set

None

Maximum Onboard Memory

128MB (EDO supported)

Maximum Video Memory

None

Cache

256/512KB

BIOS

AMI

Dimensions

290mm 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), cache slot, IR connector, USB connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse interface

J1

Power LED & keylock

J13 pins 5 - 9

Floppy drive interface

J2

Turbo LED

J13 pins 10 & 11

Serial port 1

J5

Reset switch

J13 pins 12 & 13

Serial port 2

J6

Green PC connector

J13 pins 17 & 18

PS/2 mouse port

J7

IDE interface LED

J13 pins 20 & 21

Parallel port

J9

+5v ground

J13 pins 25 & 26

IDE interface 1

J10

IR connector (optional)

J14

IDE interface 2

J11

32-bit PCI slots

PC1 - PC4

Chassis fan power

J12

Cache slot

SL1

Speaker

J13 pins 1 - 4

USB connector

USB

USER CONFIGURABLE SETTINGS

Function

Label

Position

 

Flash BIOS voltage select 12v

JP10

Pins 1 & 2 closed

 

Flash BIOS voltage select 5v

JP10

Pins 2 & 3 closed

 

EPROM or 0v flash BIOS used

JP10

Open

CMOS memory normal operation

JP11

Open

 

CMOS memory clear

JP11

Closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(2) 1M x 36

None

16MB

(2) 2M x 36

None

32MB

(2) 4M x 36

None

64MB

(2) 8M x 36

None

16MB

(2) 1M x 36

(2) 1M x 36

24MB

(2) 1M x 36

(2) 2M x 36

32MB

(2) 2M x 36

(2) 2M x 36

40MB

(2) 1M x 36

(2) 4M x 36

48MB

(2) 2M x 36

(2) 4M x 36

64MB

(2) 4M x 36

(2) 4M x 36

72MB

(2) 1M x 36

(2) 8M x 36

80MB

(2) 2M x 36

(2) 8M x 36

96MB

(2) 4M x 36

(2) 8M x 36

128MB

(2) 8M x 36

(2) 8M x 36

Note: Board accepts EDO memory. Bank 2 uses DIMM modules. The chip size and configuration is unidentified.

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

SL1

256KB

(2) 32K x 32

None

(1) 8K x 8

Not installed

512KB (A)

(2) 32K x 32

(2) 32K x 32

(1) 32K x 8

Not installed

512KB (B)

(2) 32K x 32

None

(1) 8K x 8

256KB module installed

CACHE JUMPER CONFIGURATION

Size

JP5

256KB

Open

512KB (A)

Closed

512KB (B)

Closed

CPU SPEED SELECTION (CYRIX)

CPU speed

Clock speed

Multiplier

JP4

JP7

100MHz

50MHz

2x

Pins 1 & 2, 3 & 4 closed

Open

110MHz

55MHz

2x

Open

Open

120MHz

60MHz

2x

Pins 3 & 4 closed

Open

133MHz

66MHz

2x

Pins 1 & 2 closed

Open

CPU SPEED SELECTION (AMD)

CPU speed

Clock speed

Multiplier

JP4

JP7

66MHz

50MHz

1x

Pins 1 & 2 closed

Pins 1 & 2 closed

75MHz

60MHz

1.5x

Pins 1 & 2, 3 & 4 closed

Open

83MHz

66MHz

1.5x

Open

Open

90MHz

60MHz

1.5x

Pins 3 & 4 closed

Open

100MHz

66MHz

1.5x

Pins 1 & 2 closed

Open

CPU SPEED SELECTION (PENTIUM)

CPU speed

Clock speed

Multiplier

JP4

JP7

75MHz

50MHz

1.5x

Pins 1 & 2, 3 & 4 closed

Open

90MHz

60MHz

1.5x

Pins 3 & 4 closed

Open

100MHz

66MHz

1.5x

Pins 1 & 2 closed

Open

120MHz

60MHz

2x

Pins 3 & 4 closed

Pins 1 & 2 closed

133MHz

66MHz

2x

Pins 1 & 2 closed

Pins 1 & 2 closed

150MHz

60MHz

2.5x

Pins 3 & 4 closed

Pins 1 & 2, 3 & 4 closed

166MHz

66MHz

2.5x

Pins 1 & 2 closed

Pins 1 & 2, 3 & 4 closed

180MHz

60MHz

3x

Pins 3 & 4 closed

Pins 3 & 4 closed

200MHz

66MHz

3x

Pins 1 & 2 closed

Pins 3 & 4 closed

CPU TYPE SELECTION

Type

JP6

JP9

JP15

Cyrix

1 & 2, 4 & 5

2 & 3, 4 & 5, 7 & 8, 9 & 10

Open

AMD

1 & 2, 4 & 5

2 & 3, 4 & 5, 7 & 8, 9 & 10

Open

Intel P54C/CQS/CT

1 & 2, 4 & 5

2 & 3, 4 & 5, 7 & 8, 9 & 10

Open

Intel P55C/CT

2 & 3, 5 & 6

1 & 2, 3 & 4, 6 & 7, 8 & 9

Closed

Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION

Voltage

JP14

3.4v

Closed

3.5

Open