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ACHI-156

ACHITEC CORPORATION, LTD.

ACHI-156

Device Type

Mainboard

Processor

CX 6X86/IBM 6X86/CX 686MX/IBM 6X86MX/IDT/AM K5/

AM K6/Pentium

Processor Speed

120/133/150/166/180/200/233/266/300/333MHz

Chip Set

VIA

Video Chip Set

None

Maximum Onboard Memory

1GB (EDO & SDRAM supported)

Maximum Video Memory

None

Cache

512KB

BIOS

Award

Dimensions

220mm x 220mm

I/O Options

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

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

AGP slot

AGP

IDE interface LED

J14

ATX power connector

ATX

Soft off power supply

J15

Serial port

CN1

Reset switch

J16

Serial port

CN2

Green PC LED

J17

Parallel port

CN3

Turbo switch

J18

Floppy drive interface

CN4

Power LED & keylock

J19

IDE interface

CN5

Speaker

J20

IDE interface

CN6

32-bit PCI slots

PC1 - PC3

PS/2 mouse interface

CN7

USB connector

USB

IR connector

J3

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter

C1

Unidentified

Factory configured - do not alter

C2

Unidentified

Factory configured - do not alter

C3

Unidentified

Factory configured - do not alter

C4

Unidentified

 

Power supply select AT

J11

Pins 1 & 2 closed

 

Power supply select ATX

J11

Pins 2 & 3 closed

CMOS memory normal operation

J12

Pins 1 & 2 closed

 

CMOS memory clear

J12

Pins 2 & 3 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

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

512MB

(1) 64M x 64

None

520MB

(1) 64M x 64

(1) 1M x 64

528MB

(1) 64M x 64

(1) 2M x 64

544MB

(1) 64M x 64

(1) 4M x 64

576MB

(1) 64M x 64

(1) 8M x 64

640MB

(1) 64M x 64

(1) 16M x 64

768MB

(1) 64M x 64

(1) 32M x 64

1024MB

(1) 64M x 64

(1) 64M x 64

Note: Board accepts SDRAM memory.

DIMM VOLTAGE CONFIGURATION

Voltage

J6

J7

3.3v

Pins 2 & 3 closed

Pins 2 & 3 closed

5v

Pins 1 & 2 closed

Pins 1 & 2 closed

CACHE CONFIGURATION

Size

Bank 0

512KB

(1) 64K x 64

CPU SPEED SELECTION (CX 6X86)

CPU speed

Clock speed

Multiplier

S1/1

S1/2

S1/3

S1/4

S1/5

S1/6

150MHz

60MHz

2x

On

Off

Off

Off

On

On

166MHz

66MHz

2x

On

Off

Off

On

Off

On

166MHz

60MHz

2.5x

On

On

Off

Off

On

On

200MHz

75MHz

2x

On

Off

Off

Off

On

Off

CPU SPEED SELECTION (IBM 6X86)

CPU speed

Clock speed

Multiplier

S1/1

S1/2

S1/3

S1/4

S1/5

S1/6

150MHz

60MHz

2x

On

Off

Off

Off

On

On

166MHz

66MHz

2x

On

Off

Off

On

Off

On

166MHz

60MHz

2.5x

On

On

Off

Off

On

On

200MHz

75MHz

2x

On

Off

Off

Off

On

Off

CPU SPEED SELECTION (CX 6X86MX)

CPU speed

Clock speed

Multiplier

S1/1

S1/2

S1/3

S1/4

S1/5

S1/6

233MHz

75MHz

2.5x

On

On

Off

Off

On

Off

233MHz

66MHz

3x

Off

On

Off

On

Off

On

266MHz

75MHz

3x

Off

On

Off

Off

On

Off

266MHz

66MHz

3.5x

Off

Off

Off

On

Off

On

CPU SPEED SELECTION (IBM 6X86MX)

CPU speed

Clock speed

Multiplier

S1/1

S1/2

S1/3

S1/4

S1/5

S1/6

233MHz

75MHz

2.5x

On

On

Off

Off

On

Off

233MHz

66MHz

3x

Off

On

Off

On

Off

On

266MHz

75MHz

3x

Off

On

Off

Off

On

Off

266MHz

66MHz

3.5x

Off

Off

Off

On

Off

On

CPU SPEED SELECTION (IDT)

CPU speed

Clock speed

Multiplier

S1/1

S1/2

S1/3

S1/4

S1/5

S1/6

180MHz

60MHz

3x

Off

On

Off

Off

On

On

200MHz

66MHz

3x

Off

On

Off

On

Off

On

CPU SPEED SELECTION (AM K5)

CPU speed

Clock speed

Multiplier

S1/1

S1/2

S1/3

S1/4

S1/5

S1/6

120MHz

60MHz

2x

On

Off

Off

Off

On

On

133MHz

66MHz

2x

On

Off

Off

On

Off

On

150MHz

60MHz

2.5x

On

On

Off

Off

On

On

166MHz

66MHz

2.5x

On

On

Off

On

Off

On

CPU SPEED SELECTION (AM K6)

CPU speed

Clock speed

Multiplier

S1/1

S1/2

S1/3

S1/4

S1/5

S1/6

166MHz

66MHz

2.5x

On

On

Off

On

Off

On

180MHz

60MHz

3x

Off

On

Off

Off

On

On

200MHz

66MHz

3x

Off

On

Off

On

Off

On

233MHz

66MHz

3.5x

Off

Off

Off

On

Off

On

266MHz

66MHz

4x

On

On

On

On

Off

On

300MHz

66MHz

4.5x

On

On

On

On

Off

On

333MHz

66MHz

5x

Off

On

On

On

Off

On

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

S1/1

S1/2

S1/3

S1/4

S1/5

S1/6

120MHz

60MHz

2x

On

Off

Off

Off

On

On

133MHz

66MHz

2x

On

Off

Off

On

Off

On

150MHz

60MHz

2.5x

On

On

Off

Off

On

On

166MHz

66MHz

2.5x

On

On

Off

On

Off

On

180MHz

60MHz

3x

Off

On

Off

Off

On

On

200MHz

66MHz

3x

Off

On

Off

On

Off

On

CPU SPEED SELECTION (INTEL MMX)

CPU speed

Clock speed

Multiplier

S1/1

S1/2

S1/3

S1/4

S1/5

S1/6

180MHz

60MHz

3x

Off

On

Off

Off

On

On

200MHz

66MHz

3x

Off

On

Off

On

Off

On

233MHz

66MHz

3.5x

Off

Off

Off

On

Off

On

266MHz

66MHz

4x

On

On

On

On

Off

On

300MHz

66MHz

4.5x

On

On

On

On

Off

On

333MHz

66MHz

5x

Off

On

On

On

Off

On

CPU VOLTAGE SELECTION

Voltage

SW1/1

SW1/2

SW1/3

SW1/4

2.0

Off

Off

Off

Off

2.1

On

Off

Off

Off

2.2

Off

On

Off

Off

2.3

On

On

Off

Off

2.4

Off

Off

On

Off

2.5

On

Off

On

Off

2.6

Off

On

On

Off

2.7

On

On

On

Off

2.8

Off

Off

Off

On

2.9

On

Off

Off

On

3.0

Off

On

Off

On

3.1

On

On

Off

On

3.2

Off

Off

On

On

3.3

On

Off

On

On

3.4

Off

On

On

On

3.5

On

On

On

On