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# 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 512MB (EDO & SDRAM supported)
Memory
Maximum Video None
Memory
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
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-----------------+-----------+-------------------+----------|
| ATX power | ATX | Parallel port | CN4 |
| connector | | | |
|-----------------+-----------+-------------------+----------|
| 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 |
+------------------------------------------------------------+