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J-5TXA, J-5TXA/L Motherboard Settings and Configuration






J-MARK COMPUTER CORPORATION

J-5TXA, J-5TXA/L

Device Type

Mainboard

Processor

CX 6X86/IBM 6X86/CX 686MX/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

256MB (EDO & SDRAM supported)

Maximum Video Memory

None

Cache

512KB

BIOS

Award

Dimensions

305mm x 244mm

I/O Options

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

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

ATX power connector

ATX

PS/2 mouse port

J1

Speaker

C1

Parallel port

J3

Reset switch

C2

Serial port 1

J4

Turbo LED

C3

USB connector 1

J5

IDE interface LED

C4

USB connector 2

J5A

Power LED & keylock

C5

Serial port 2

J6

Turbo switch

C6

Floppy drive interface

J14

Green PC connector

C7

IDE interface 2

J15

Consumer IR connector

CIR1

IDE interface 1

J17

CPU fan power

CPU

Soft off power supply

JP7

IR connector

IR1

32-bit PCI slots

PC1 Ė PC4

USER CONFIGURABLE SETTINGS

Function

Label

Position

 

Flash BIOS voltage select 12v

JERP

Pins 1 & 2 closed

 

Flash BIOS voltage select 5v

JERP

Pins 2 & 3 closed

 

CMOS memory

JP6

Unidentified

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

SIMM CONFIGURATION (CONíT)

Size

Bank 0

Bank 1

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 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

512KB

(1) 64K x 64

(1) 32K x 32

CPU SPEED SELECTION (CX 6X86)

CPU speed

Clock speed

Multiplier

J16

150MHz

60MHz

2x

Pins 21 & 22 closed

166MHz

66MHz

2x

Pins 23 & 24 closed

200MHz

75MHz

2x

Pins 25 & 26 closed

CPU SPEED SELECTION (IBM 6X86)

CPU speed

Clock speed

Multiplier

J16

150MHz

60MHz

2x

Pins 21 & 22 closed

166MHz

66MHz

2x

Pins 23 & 24 closed

200MHz

75MHz

2x

Pins 25 & 26 closed

CPU SPEED SELECTION (CX 6X86MX)

CPU speed

Clock speed

Multiplier

J16

166MHz

60MHz

2.5x

Pins 9 & 10 closed

200MHz

75MHz

2x

Pins 25 & 26 closed

233MHz

66MHz

3x

Pins 13 & 14 closed

CPU SPEED SELECTION (AM K5)

CPU speed

Clock speed

Multiplier

J16

90MHz

60MHz

1.5x

Pins 1 & 2 closed

100MHz

66MHz

1.5x

Pins 3 & 4 closed

133MHz

66MHz

1.5x

Pins 3 & 4 closed

166MHz

66MHz

2.5x

Pins 11 & 12 closed

CPU SPEED SELECTION (AM K6)

CPU speed

Clock speed

Multiplier

J16

166MHz

66MHz

2.5x

Pins 11 & 12 closed

200MHz

66MHz

3x

Pins 13 & 14 closed

233MHz

66MHz

3.5x

Pins 15 & 16 closed

266MHz

66MHz

4x

Pins 17 & 18 closed

300MHz

66MHz

4.5x

Pins 19 & 20 closed

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

J16

90MHz

60MHz

1.5x

Pins 1 & 2 closed

100MHz

66MHz

1.5x

Pins 3 & 4 closed

120MHz

60MHz

2x

Pins 5 & 6 closed

133MHz

66MHz

2x

Pins 7 & 8 closed

150MHz

60MHz

2.5x

Pins 9 & 10 closed

166MHz

66MHz

2.5x

Pins 11 & 12 closed

200MHz

66MHz

3x

Pins 13 & 14 closed

CPU SPEED SELECTION (INTEL MMX)

CPU speed

Clock speed

Multiplier

J16

166MHz

66MHz

2.5x

Pins 11 & 12 closed

200MHz

66MHz

3x

Pins 13 & 14 closed

233MHz

66MHz

3.5x

Pins 3 & 4 closed

CPU VOLTAGE SELECTION

Voltage

JP1/pins 1 & 2

JP1/pins 3 & 4

JP1/pins 5 & 6

JP1/pins 7 & 8

2.04v

Closed

Closed

Closed

Open

2.10v

Closed

Closed

Closed

Closed

2.14v

Open

Open

Open

Closed

2.84v

Closed

Open

Open

Open

2.94v

Closed

Open

Open

Closed

3.24v

Closed

Closed

Open

Open

3.34v

Closed

Closed

Closed

Open

3.44v

Closed

Closed

Closed

Open

3.54v

Closed

Closed

Closed

Closed








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