ACHITEC CORPORATION, LTD.
ACHI-152
Device Type Mainboard
Processor CX 6X86/IBM 6X86/CX 686MX/IBM 6X86MX/IDT/AM K5/
AM K6/Pentium
Processor Speed90/100/120/133/150/166/180/200/233/266/300/333MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard256MB (EDO & SDRAM supported)
Memory
Maximum Video None
Memory
Cache 512KB
BIOS Award
Dimensions 220mm x 190mm
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), IR connector, USB connector,
ATX power connector
NPU Options None
[Image]
CONNECTIONS
Purpose Location Purpose Location
ATX power ATX Serial port CN2
connector
Reset switch C1/pins 1 & 2 Parallel port CN3
Power LED & C1/pins 4 - 8 Floppy drive CN4
keylock interface
Speaker C1/pins 10 - IDE interface CN5
13
Soft off power C1/pins 15 & IDE interface CN6
supply 16
IR connector C1/pins 21 - PS/2 mouse CN7
25 interface
Green PC connector C1/pins 32 & CPU fan power J10
33
Green PC LED C1/pins 35 & 32-bit PCI slots PC1 – PC4
36
IDE interface LED C1/pins 38 & USB connector USB
39
Serial port CN1
USER CONFIGURABLE SETTINGS
Function Label Position
» CMOS memory normal operation J9 Pins 1 & 2
closed
CMOS memory clear J9 Pins 2 & 3
closed
Flash BIOS voltage select 12v J11 Pins 1 & 2
closed
Flash BIOS voltage select 5v J11 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
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
DIMM CONFIGURATION (CON’T)
Size Bank 0 Bank 1
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.
DIMM VOLTAGE CONFIGURATION
Voltage J1 J3
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 Clock Multiplier SW1/1 SW1/2 SW1/3 SW1/4 SW1/5 SW1/6
speed speed
150MHz 60MHz 2x Open Closed Closed Closed Open Open
166MHz 66MHz 2x Closed Open Closed Closed Open Open
166MHz 60MHz 2.5x Open Closed Closed Closed Closed Open
200MHz 75MHz 2x Open Closed Open Closed Open Open
CPU SPEED SELECTION (IBM 6X86)
CPU Clock Multiplier J5/1 J5/2 J5/3 J6/1 J6/2 J6/3
speed speed
150MHz 60MHz 2x Open Closed Closed Closed Open Open
166MHz 66MHz 2x Closed Open Closed Closed Open Open
166MHz 60MHz 2.5x Open Closed Closed Closed Closed Open
200MHz 75MHz 2x Open Closed Open Closed Open Open
CPU SPEED SELECTION (CX 6X86MX)
CPU Clock Multiplier J5/1 J5/2 J5/3 J6/1 J6/2 J6/3
speed speed
233MHz 75MHz 2.5x Open Closed Open Closed Closed Open
233MHz 66MHz 3x Closed Open Closed Open Closed Open
266MHz 75MHz 3x Open Closed Open Open Closed Open
266MHz 66MHz 3.5x Closed Open Closed Open Open Open
CPU SPEED SELECTION (IBM 6X86MX)
CPU Clock Multiplier J5/1 J5/2 J5/3 J6/1 J6/2 J6/3
speed speed
233MHz 75MHz 2.5x Open Closed Open Closed Closed Open
233MHz 66MHz 3x Closed Open Closed Open Closed Open
266MHz 75MHz 3x Open Closed Open Open Closed Open
266MHz 66MHz 3.5x Closed Open Closed Open Open Open
CPU SPEED SELECTION (IDT)
CPU Clock Multiplier J5/1 J5/2 J5/3 J6/1 J6/2 J6/3
speed speed
166MHz 66MHz 2.5x Closed Open Closed Closed Closed Open
200MHz 66MHz 3x Closed Open Closed Open Closed Open
CPU SPEED SELECTION (AM K5)
CPU Clock Multiplier J5/1 J5/2 J5/3 J6/1 J6/2 J6/3
speed speed
90MHz 60MHz 1.5x Open Closed Closed Open Open Open
100MHz 66MHz 1.5x Closed Open Closed Open Open Open
120MHz 60MHz 2x Open Closed Closed Closed Open Open
133MHz 66MHz 2x Closed Open Closed Closed Open Open
150MHz 60MHz 2.5x Open Closed Closed Closed Closed Open
166MHz 66MHz 2.5x Closed Open Closed Closed Closed Open
CPU SPEED SELECTION (AM K6)
CPU Clock Multiplier J5/1 J5/2 J5/3 J6/1 J6/2 J6/3
speed speed
166MHz 66MHz 2.5x Closed Open Closed Closed Closed Open
200MHz 66MHz 3x Closed Open Closed Open Closed Open
233MHz 66MHz 3.5x Closed Open Closed Open Open Open
266MHz 66MHz 4x Closed Open Closed Closed Open Closed
300MHz 66MHz 4.5x Closed Open Closed Closed Closed Closed
333MHz 66MHz 5x Closed Open Closed Open Closed Closed
CPU SPEED SELECTION (INTEL)
CPU Clock Multiplier J5/1 J5/2 J5/3 J6/1 J6/2 J6/3
speed speed
90MHz 60MHz 1.5x Open Closed Closed Open Open Open
100MHz 66MHz 1.5x Closed Open Closed Open Open Open
120MHz 60MHz 2x Open Closed Closed Closed Open Open
133MHz 66MHz 2x Closed Open Closed Closed Open Open
150MHz 60MHz 2.5x Open Closed Closed Closed Closed Open
166MHz 66MHz 2.5x Closed Open Closed Closed Closed Open
200MHz 66MHz 3x Closed Open Closed Open Closed Open
CPU SPEED SELECTION (INTEL MMX)
CPU Clock Multiplier J5/1 J5/2 J5/3 J6/1 J6/2 J6/3
speed speed
200MHz 66MHz 3x Closed Open Closed Open Closed Open
233MHz 66MHz 3.5x Closed Open Closed Open Open Open
266MHz 66MHz 4x Closed Open Closed Closed Open Closed
300MHz 66MHz 4.5x Closed Open Closed Closed Closed Closed
333MHz 66MHz 5x Closed Open Closed Open Closed Closed
CPU VOLTAGE SELECTION
Voltage JP1/1 JP1/2 JP1/3 JP1/4
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