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
[Image]
CONNECTIONS
Purpose Location Purpose Location
ATX power connector ATX Parallel port CN4
Soft off power C1 IDE interface CN5
supply
IR connector C2 Floppy drive CN6
interface
Serial port CN1 PS/2 mouse CN7
interface
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 C3 Unidentified
alter
» Factory configured - do not C4 Unidentified
alter
» CMOS normal operation JP1 Pins 1 & 2 closed
CMOS memory clear JP1 Pins 2 & 3 closed
» Factory configured - do not JP3 Unidentified
alter
» Factory configured - do not JP4 Unidentified
alter
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 Clock Multiplier SW1/1 SW1/2 SW1/3 SW1/4 SW1/5 SW1/6
speed speed
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 Clock Multiplier SW1/1 SW1/2 SW1/3 SW1/4 SW1/5 SW1/6
speed speed
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 Clock Multiplier SW1/1 SW1/2 SW1/3 SW1/4 SW1/5 SW1/6
speed speed
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 Clock Multiplier SW1/1 SW1/2 SW1/3 SW1/4 SW1/5 SW1/6
speed speed
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 Clock Multiplier SW1/1 SW1/2 SW1/3 SW1/4 SW1/5 SW1/6
speed speed
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 Clock Multiplier SW1/1 SW1/2 SW1/3 SW1/4 SW1/5 SW1/6
speed speed
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