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5TXC

J-MARK COMPUTER CORPORATION

5TXC

Processor

CX 6X86/CX 6X86/CX 686MX/IBM 6X86/AM K5/AM K6/Pentium

Processor Speed

90/100/120/133/150/166/200/233/266/300MHz

Chip Set

Intel

Video Chip Set

None

Maximum Onboard Memory

512MB (EDO supported)

Maximum Video Memory

None

Cache

256/512KB

BIOS

Award

Dimensions

250mm x 220mm

I/O Options

32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), IR connector, USB connectors (2), ATX power connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

ATX power connector

ATX

Parallel port

J3

Serial port 2

CN1

Floppy drive interface

J6

Serial port 1

CN2

IDE interface 1

J9

Power LED & keylock

C1

IDE interface 2

J10

Speaker

C2

IR connector

J15

Reset switch

C3

USB connector 1

J16

Turbo LED

C4

USB connector 2

J17

Turbo switch

C5

Soft off power supply

J20

CPU fan power

C6

IDE interface LED

J21/pins 1 & 3

Chassis fan power

FAN2

Green PC connector

J21/pins 2 & 4

Chassis fan power

FAN3

32-bit PCI slots

PC1 PC4

PS/2 mouse interface

J1

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

CMOS memory normal operation

JP2

Pins 2 & 3 closed

 

CMOS memory clear

JP2

Pins 3 & 4 closed

 

Flash BIOS voltage select 12v

JP3

Pins 1 & 2 closed

 

Flash BIOS voltage select 5v

JP3

Pins 2 & 3 closed

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

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

32MB

(1) 2M x 64

(1) 2M x 64

48MB

(1) 2M x 64

(1) 4M x 64

64MB

(1) 4M x 64

(1) 4M x 64

128MB

(1) 8M x 64

(1) 8M x 64

256MB

(1) 16M x 64

(1) 16M x 64

512MB

(1) 32M x 64

(1) 32M x 64

CACHE CONFIGURATION

Size

Bank 0

TAG

256KB

(2) 32K x 32

(1) 32K x 8

512KB

(2) 64K x 32

(1) 32K x 8

CPU SPEED SELECTION (CX 6X86)

CPU speed

Clock speed

Multiplier

U22/1

U22/2

U22/3

U22/4

U22/5

U22/6

150MHz

60MHz

2x

Off

Off

On

Off

Off

On

166MHz

66MHz

2x

Off

Off

On

Off

Off

Off

200MHz

75MHz

2x

Off

Off

On

Off

On

Off

CPU SPEED SELECTION (CX 6X86MX)

CPU speed

Clock speed

Multiplier

U22/1

U22/2

U22/3

U22/4

U22/5

U22/6

166MHz

66MHz

2.5x

Off

On

On

Off

Off

On

200MHz

75MHz

2x

Off

Off

On

Off

On

Off

233MHz

66MHz

3x

Off

On

Off

Off

Off

Off

CPU SPEED SELECTION (IBM 6X86)

CPU speed

Clock speed

Multiplier

U22/1

U22/2

U22/3

U22/4

U22/5

U22/6

150MHz

60MHz

2x

Off

Off

On

Off

Off

On

166MHz

66MHz

2x

Off

Off

On

Off

Off

Off

200MHz

75MHz

2x

Off

Off

On

Off

On

Off

CPU SPEED SELECTION (AM K5)

CPU speed

Clock speed

Multiplier

U22/1

U22/2

U22/3

U22/4

U22/5

U22/6

100MHz

66MHz

1.5x

Off

Off

Off

Off

Off

Off

133MHz

66MHz

1.5x

Off

Off

Off

Off

Off

Off

166MHz

66MHz

2.5x

Off

On

On

Off

Off

Off

CPU SPEED SELECTION (AM K6)

CPU speed

Clock speed

Multiplier

U22/1

U22/2

U22/3

U22/4

U22/5

U22/6

166MHz

66MHz

2.5x

Off

On

On

Off

Off

Off

200MHz

66MHz

3x

Off

On

Off

Off

Off

Off

233MHz

66MHz

3.5x

Off

Off

Off

Off

Off

Off

266MHz

66MHz

4x

On

Off

On

Off

Off

Off

300MHz

66MHz

4.5x

On

On

On

Off

Off

Off

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

U22/1

U22/2

U22/3

U22/4

U22/5

U22/6

90MHz

60MHz

1.5x

Off

Off

Off

Off

Off

On

100MHz

66MHz

1.5x

Off

Off

Off

Off

Off

Off

120MHz

60MHz

2x

Off

Off

On

Off

Off

On

133MHz

66MHz

2x

Off

Off

On

Off

Off

Off

150MHz

60MHz

2.5x

Off

On

On

Off

Off

On

166MHz

66MHz

2.5x

Off

On

On

Off

Off

Off

200MHz

66MHz

3x

Off

On

Off

Off

Off

Off

233MHz

66MHz

3.5x

Off

Off

Off

Off

Off

Off

CPU VOLTAGE SELECTION

Voltage

JP4

2.1v

Pins 1 & 2 closed

2.8v

Pins 7 & 8 closed

2.9v

Pins 1 & 2, 7 & 8 closed

3.2v

Pins 5 & 6, 7 & 8 closed

3.3v

Pins 1 & 2, 5 & 6, 7 & 8 closed

3.45v

Pins 3 & 4, 5 & 6, 7 & 8 closed

3.52v

Pins 1 & 2, 3 & 4, 5 & 6, 7 & 8 closed