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MB-8500TUR

PIONEX TECHNOLOGIES, INC.

MB-8500TUR

Processor

CX M1/AM K5/Pentium

Processor Speed

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

Chip Set

Unidentified

Video Chip Set

None

Maximum Onboard Memory

128MB (EDO supported)

Maximum Video Memory

None

Cache

256/512KB

BIOS

AMI

Dimensions

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 port, serial ports (2), VGA interface, cache slot, IR connector, USB connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse interface

J1

IR connector

J15

PS/2 mouse port

J5

Speaker

J16 pins 1 - 4

VGA interface

J6

Power LED & keylock

J16 pins 5 - 9

Floppy drive interface

J7

Turbo LED

J16 pins 10 & 11

IDE interface 1

J8

Reset switch

J16 pins 12 & 13

USB connector

J9

Green PC connector

J16 pins 17 & 18

Serial port 1

J10

IDE interface LED

J16 pins 20 & 21

Serial port 2

J11

Ground connector

J16 pins 25 & 26

Parallel port

J12

32-bit PCI slots

PC1 - PC3

IDE interface 2

J13

Cache slot

SL1

Chassis fan power

J14

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

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 voltage select 5v

JP13

Pins 1 & 2 closed

 

Flash BIOS voltage select 12v

JP13

Pins 2 & 3 closed

 

Flash BIOS voltage select 0v or EPROM

JP13

Open

Factory configured - do not alter

JP16

Unidentified

DRAM 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) 1M x 36

(2) 2M x 36

32MB

(2) 4M x 36

None

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) 8M x 36

None

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 accepts DIMM modules

CACHE CONFIGURATION

Size

Bank 0

TAG

SL1

256KB (A)

(2) 32K x 32

(1) 8K/32K x 8

Not installed

256KB (B)

None

None

256KB module installed

512KB (A)

(2) 64K x 32

(1) 32K x 8

Not installed

512KB (B)

(2) 32K x 32

(1) 8K x 8

256KB module installed

512KB (C)

None

None

512KB module installed

CACHE JUMPER CONFIGURATION

Size

JP11

256KB

Pins 1 & 2 closed

512KB

Pins 2 & 3 closed

CPU SPEED SELECTION (CYRIX)

CPU speed

Clock speed

Multiplier

JP1

JP2

JP6

120MHz

50MHz

2x

Open

Open

1 & 2, 3 & 4

133MHz

55MHz

2x

Open

Open

Open

150MHz

60MHz

2x

Open

Open

1 & 2

166MHz

66MHz

2x

Open

Open

3 & 4

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AMD)

CPU speed

Clock speed

Multiplier

JP1

JP2

JP6

75MHz

66MHz

1x

Closed

Open

3 & 4

75MHz

50MHz

1.5x

Open

Open

1 & 2, 3 & 4

90MHz

55MHz

1.5x

Open

Open

Open

90MHz

60MHz

1.5x

Open

Open

1 & 2

100MHz

66MHz

1.5x

Open

Open

3 & 4

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

JP1

JP2

JP6

75MHz

50MHz

1.5x

Open

Open

1 & 2, 3 & 4

90MHz

60MHz

1.5x

Open

Open

1 & 2

100MHz

66MHz

1.5x

Open

Open

3 & 4

120MHz

60MHz

2x

Closed

Open

1 & 2

133MHz

66MHz

2x

Closed

Open

3 & 4

150MHz

60MHz

2.5x

Closed

Closed

1 & 2

166MHz

66MHz

2.5x

Closed

Closed

3 & 4

180MHz

60MHz

3x

Open

Closed

1 & 2

200MHz

66MHz

3x

Open

Closed

3 & 4

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION

Type

JP7

JP14

JP15

CX M1

Open

Pins 1 & 2 closed

Pins 1 & 2, 3 & 4 closed

AM K5

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