ACHITEC CORPORATION, LTD.

ACHI-154

Device Type

Mainboard

Processor

CX 6X86L/CX 686MX/AM K5/AM K6/Pentium

Processor Speed

133/150/166/200/233MHz

Chip Set

VIA

Video Chip Set

None

Maximum Onboard Memory

512MB (EDO & SDRAM supported)

Maximum Video Memory

None

Cache

512KB

BIOS

Award

Dimensions

220mm x 190mm

I/O Options

32-bit PCI slots (3), floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), USB connector, ATX power connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

ATX power connector

ATX

Parallel port

CN4

Soft off power supply

C1

IDE interface

CN5

IR connector

C2

Floppy drive interface

CN6

Serial port

CN1

PS/2 mouse interface

CN7

Serial port

CN2

32-bit PCI slots

PC1 - PC3

IDE interface

CN3

USB connector

USB

Note: Depending on board version, CN3 may be the parallel interface & CN4 may be the floppy drive interface.

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Factory configured - do not alter

C3

Unidentified

»

Factory configured - do not alter

C4

Unidentified

»

CMOS normal operation

JP1

Pins 1 & 2 closed

 

CMOS memory clear

JP1

Pins 2 & 3 closed

»

Factory configured - do not alter

JP3

Unidentified

»

Factory configured - do not alter

JP4

Unidentified

 

Power supply select AT

JP7

Open

 

Power supply select ATX

JP7

Closed

SIMM CONFIGURATION

Size

Bank 0

8MB

(2) 1M x 36

16MB

(2) 2M x 36

32MB

(2) 4M x 36

64MB

(2) 8M x 36

128MB

(2) 16M x 36

256MB

(2) 32M x 36

512MB

(2) 64M 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

DIMM CONFIGURATION (CON'T)

Size

Bank 0

Bank 1

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) 32M x 64

None

256MB

(1) 16M x 64

(1) 16M x 64

264MB

(1) 32M x 64

(1) 1M x 64

272MB

(1) 32M x 64

(1) 2M x 64

288MB

(1) 32M x 64

(1) 4M x 64

320MB

(1) 32M x 64

(1) 8M x 64

384MB

(1) 32M x 64

(1) 16M x 64

512MB

(1) 32M x 64

(1) 32M x 64

Note: Board accepts SDRAM memory.

CACHE CONFIGURATION

Size

Bank 0

512KB

(1) 64K x 64

CPU SPEED SELECTION (CX 6X86L)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

133MHz

60MHz

2x

Open

Open

Closed

Closed

Closed

Closed

166MHz

66MHz

2x

Open

Open

Closed

Closed

Open

Closed

200MHz

75MHz

2x

Open

Open

Closed

Open

Closed

Open

CPU SPEED SELECTION (CX 6X86MX)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

166MHz

66MHz

2x

Open

Open

Closed

Closed

Open

Closed

200MHz

66MHz

2.5x

Open

Closed

Closed

Closed

Open

Closed

233MHz

66MHz

3x

Open

Closed

Open

Closed

Open

Closed

266MHz

66MHz

3.5x

Open

Open

Open

Closed

Open

Closed

CPU SPEED SELECTION (AM K5)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

133MHz

66MHz

2x

Open

Open

Closed

Closed

Open

Closed

166MHz

66MHz

2.5x

Open

Closed

Closed

Closed

Open

Closed

200MHz

66MHz

3x

Open

Closed

Open

Closed

Open

Closed

CPU SPEED SELECTION (AM K6)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

166MHz

66MHz

2.5x

Open

Closed

Closed

Closed

Open

Closed

200MHz

66MHz

3x

Open

Closed

Open

Closed

Open

Closed

233MHz

66MHz

3.5x

Open

Open

Open

Closed

Open

Closed

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

133MHz

66MHz

2x

Open

Open

Closed

Closed

Open

Closed

150MHz

60MHz

2.5x

Open

Closed

Closed

Closed

Closed

Open

166MHz

66MHz

2.5x

Open

Closed

Closed

Closed

Open

Closed

200MHz

66MHz

3x

Open

Closed

Open

Closed

Open

Closed

CPU SPEED SELECTION (INTEL MMX)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

166MHz

66MHz

2.5x

Open

Closed

Closed

Closed

Open

Closed

200MHz

66MHz

3x

Open

Closed

Open

Closed

Open

Closed

233MHz

66MHz

3.5x

Open

Open

Open

Closed

Open

Closed

CPU VOLTAGE SELECTION

Voltage

JP6/1

JP6/2

JP6/3

JP6/4

2.0

Open

Open

Open

Open

2.1

Closed

Open

Open

Open

2.2

Open

Closed

Open

Open

2.3

Closed

Closed

Open

Open

2.4

Open

Open

Closed

Open

2.5

Closed

Open

Closed

Open

2.6

Open

Closed

Closed

Open

2.7

Closed

Closed

Closed

Open

2.8

Open

Open

Open

Closed

2.9

Closed

Open

Open

Closed

3.0

Open

Closed

Open

Closed

3.1

Closed

Closed

Open

Closed

3.2

Open

Open

Closed

Closed

3.3

Closed

Open

Closed

Closed

3.4

Open

Closed

Closed

Closed

3.5

Closed

Closed

Closed

Closed