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AM-438VX

KADATCO CO., LTD.

AM-438VX

Device Type

Mainboard

Processor

CX 6X86/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 & SDRAM supported)

Maximum Video Memory

None

Cache

256/512KB

BIOS

Unidentified

Dimensions

254mm x 218mm

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), cache slot, IR connector, USB connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

IDE interface LED

C1

Floppy drive interface

CN3

Reset switch

C2

Serial port 2

CN4

Speaker

C3

IDE interface 1

CN5

Power LED & keylock

C4

IDE interface 2

CN6

CPU fan power

C5

PS/2 mouse interface

CN7

Green PC connector

C6

32-bit PCI slots

PC1 PC4

IR connector

C7

Cache slot

SL1

Serial port 1

CN1

USB connector

USB

Parallel port

CN2

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

 

Flash BIOS type select SST/Winbond/ATMEL/MMX

JP9

Pins 1 & 2 closed

 

Flash BIOS type select Intel

JP9

Pins 2 & 3 closed

 

Flash BIOS voltage select 12v

JP10

Pins 2 & 3 closed

 

Flash BIOS voltage select 5v

JP10

Pins 1 & 2 closed

CMOS memory normal operation

JP16

Open

 

CMOS memory clear

JP16

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

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) 4M x 64

(1) 4M x 64

Note: Board accepts SDRAM memory.

CACHE CONFIGURATION

Size

Bank 0

SL1

256KB

None

256KB module installed

256KB

256KB

Not installed

512KB

None

512KB module installed

512KB

512KB

Not installed

512KB

256KB

256KB module installed

Note: The size and location of bank 0 is unidentified.

CPU SPEED SELECTION (CYRIX)

CPU speed

Clock speed

Multiplier

JP3

JP4

JP6

JP7

120MHz

50MHz

2x

2 & 3

1 & 2

2 & 3

2 & 3

133MHz

55MHz

2x

2 & 3

1 & 2

2 & 3

1 & 2

150MHz

60MHz

2x

2 & 3

1 & 2

1 & 2

2 & 3

166MHz

66MHz

2x

2 & 3

1 & 2

1 & 2

1 & 2

200MHz

66MHz

1.5x

1 & 2

1 & 2

2 & 3

2 & 3

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AMD)

CPU speed

Clock speed

Multiplier

JP3

JP4

JP6

JP7

75MHz

50MHz

1.5x

1 & 2

1 & 2

2 & 3

2 & 3

90MHz

60MHz

1.5x

1 & 2

1 & 2

1 & 2

2 & 3

100MHz

66MHz

1.5x

1 & 2

1 & 2

1 & 2

1 & 2

120MHz

60MHz

1.5x

1 & 2

1 & 2

1 & 2

2 & 3

133MHz

66MHz

1.5x

1 & 2

1 & 2

1 & 2

1 & 2

150MHz

60MHz

2x

2 & 3

1 & 2

1 & 2

2 & 3

166MHz

66MHz

2x

2 & 3

1 & 2

1 & 2

1 & 2

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

JP3

JP4

JP6

JP7

75MHz

50MHz

1.5x

1 & 2

1 & 2

2 & 3

2 & 3

90MHz

60MHz

1.5x

1 & 2

1 & 2

1 & 2

2 & 3

100MHz

66MHz

1.5x

1 & 2

1 & 2

1 & 2

1 & 2

120MHz

60MHz

2x

2 & 3

1 & 2

1 & 2

2 & 3

133MHz

66MHz

2x

2 & 3

1 & 2

1 & 2

1 & 2

150MHz

60MHz

2.5x

2 & 3

2 & 3

1 & 2

2 & 3

166MHz

66MHz

2.5x

2 & 3

2 & 3

1 & 2

1 & 2

180MHz

60MHz

3x

1 & 2

2 & 3

1 & 2

2 & 3

200MHz

66MHz

3x

1 & 2

2 & 3

1 & 2

1 & 2

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION

Type

J13

J14

J15

J16

Cyrix

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

AMD (B, C, F)

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

AMD (H, J, K)

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

P54C

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

P55C

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

CPU VOLTAGE SELECTION

Voltage

JP17

STD

Pins 2 & 3 closed

VRE

Pins 1 & 2 closed

CPU VOLTAGE SELECTION

Voltage

JP5

2.5v

Pins 1 & 2 closed

2.7v

Pins 3 & 4 closed

2.93v

Pins 5 & 6 closed

3.38v

Pins 7 & 8 closed

3.52v

Pins 9 & 10 closed