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# ACHME COMPUTER, INC.
MS-6112
Device Type Mainboard
Processor Pentium II
Processor Speed 200/233/266/300/333MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 1024MB (EDO & SDRAM supported)
Memory
Maximum Video None
Memory
Cache 256/512KB (located on Pentium II CPU)
BIOS Unidentified
Dimensions 300mm x 230mm
I/O Options 32-bit PCI slots (3), floppy drive interface,
IDE interfaces (2), parallel port, PS/2 mouse
port, serial ports (2), IR connector, USB
connectors (2), ATX power connector, AGP slot
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+----------------+-------------|
| AGP slot | AGP | Chassis fan | JFAN |
| | | power | |
|------------------+----------+----------------+-------------|
| ATX power | ATX | Power LED & | JFP1/pins 1 |
| connector | | keylock | - 5 |
|------------------+----------+----------------+-------------|
| CPU fan power | CFAN | Speaker | JFP1/pins7 |
| | | | - 10 |
|------------------+----------+----------------+-------------|
| Parallel port | CN1 | Turbo LED | JFP1/pins |
| | | | 12 & 13 |
|------------------+----------+----------------+-------------|
| Serial port 2 | CN2 | Reset switch | JFP1/pins |
| | | | 19 & 20 |
|------------------+----------+----------------+-------------|
| Serial port 1 | CN3 | IDE interface | JFP1/pins |
| | | LED | 22 & 24 |
|------------------+----------+----------------+-------------|
| USB connector 1 | CN4 | Green PC LED | JGL1 |
|------------------+----------+----------------+-------------|
| USB connector 2 | CN5 | Soft off power | JSW1 |
| | | supply | |
|------------------+----------+----------------+-------------|
| PS/2 mouse port | CN6 | Soft off power | JSW2 |
| | | supply | |
|------------------+----------+----------------+-------------|
| Floppy drive | CN7 | 32-bit PCI | PC1 – PC3 |
| interface | | slots | |
|------------------+----------+----------------+-------------|
| IDE interface 2 | CN8 | Power supply | PFAN |
| | | fan | |
|------------------+----------+----------------+-------------|
| IDE interface 1 | CN9 | Chassis fan | SFAN |
| | | power | |
|------------------+----------+----------------+-------------|
| IR connector | IR1 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| » | Factory configured - do not alter | J3 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | J4 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | CMOS memory normal operation | JBAT | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | CMOS memory clear | JBAT | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Flash BIOS voltage select 12v | JMODE | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Flash BIOS voltage select 5v | JMODE | Pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 8MB | (1) 1M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (1) 2M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (1) 1M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 24MB | (1) 2M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 24MB | (1) 1M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 32MB | (1) 4M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 32MB | (1) 2M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 32MB | (1) 2M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 40MB | (1) 4M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 40MB | (1) 2M x 64 | (1) 2M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 48MB | (1) 4M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 48MB | (1) 4M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 48MB | (1) 2M x 64 | (1) 2M x 64 | (1) 2M x 64 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|----------+-------------------+--------------+--------------|
| 56MB | (1) 4M x 64 | (1) 2M x 64 | (1) 1M x 64 |
|----------+-------------------+--------------+--------------|
| 64MB | (1) 8M x 64 | None | None |
|----------+-------------------+--------------+--------------|
| 64MB | (1) 4M x 64 | (1) 2M x 64 | (1) 2M x 64 |
|----------+-------------------+--------------+--------------|
| 64MB | (1) 4M x 64 | (1) 4M x 64 | None |
|----------+-------------------+--------------+--------------|
| 72MB | (1) 8M x 64 | (1) 1M x 64 | None |
|----------+-------------------+--------------+--------------|
| 72MB | (1) 4M x 64 | (1) 4M x 64 | (1) 1M x 64 |
|----------+-------------------+--------------+--------------|
| 80MB | (1) 8M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|----------+-------------------+--------------+--------------|
| 80MB | (1) 8M x 64 | (1) 2M x 64 | None |
|----------+-------------------+--------------+--------------|
| 80MB | (1) 4M x 64 | (1) 4M x 64 | (1) 2M x 64 |
|----------+-------------------+--------------+--------------|
| 88MB | (1) 8M x 64 | (1) 2M x 64 | (1) 1M x 64 |
|----------+-------------------+--------------+--------------|
| 96MB | (1) 8M x 64 | (1) 2M x 64 | (1) 2M x 64 |
|----------+-------------------+--------------+--------------|
| 96MB | (1) 8M x 64 | (1) 4M x 64 | None |
|----------+-------------------+--------------+--------------|
| 96MB | (1) 4M x 64 | (1) 4M x 64 | (1) 4M x 64 |
|----------+-------------------+--------------+--------------|
| 104MB | (1) 8M x 64 | (1) 4M x 64 | (1) 1M x 64 |
|----------+-------------------+--------------+--------------|
| 112MB | (1) 8M x 64 | (1) 4M x 64 | (1) 2M x 64 |
|----------+-------------------+--------------+--------------|
| 128MB | (1) 16M x 64 | None | None |
|----------+-------------------+--------------+--------------|
| 128MB | (1) 8M x 64 | (1) 4M x 64 | (1) 4M x 64 |
|----------+-------------------+--------------+--------------|
| 128MB | (1) 8M x 64 | (1) 8M x 64 | None |
|----------+-------------------+--------------+--------------|
| 136MB | (1) 16M x 64 | (1) 1M x 64 | None |
|----------+-------------------+--------------+--------------|
| 136MB | (1) 8M x 64 | (1) 8M x 64 | (1) 1M x 64 |
|----------+-------------------+--------------+--------------|
| 144MB | (1) 16M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|----------+-------------------+--------------+--------------|
| 144MB | (1) 16M x 64 | (1) 2M x 64 | None |
|----------+-------------------+--------------+--------------|
| 144MB | (1) 8M x 64 | (1) 8M x 64 | (1) 2M x 64 |
|----------+-------------------+--------------+--------------|
| 152MB | (1) 16M x 64 | (1) 2M x 64 | (1) 1M x 64 |
|----------+-------------------+--------------+--------------|
| 160MB | (1) 16M x 64 | (1) 2M x 64 | (1) 2M x 64 |
|----------+-------------------+--------------+--------------|
| 160MB | (1) 16M x 64 | (1) 4M x 64 | None |
|----------+-------------------+--------------+--------------|
| 160MB | (1) 8M x 64 | (1) 8M x 64 | (1) 4M x 64 |
|----------+-------------------+--------------+--------------|
| 168MB | (1) 16M x 64 | (1) 4M x 64 | (1) 1M x 64 |
|----------+-------------------+--------------+--------------|
| 176MB | (1) 16M x 64 | (1) 4M x 64 | (1) 2M x 64 |
|----------+-------------------+--------------+--------------|
| 192MB | (1) 16M x 64 | (1) 4M x 64 | (1) 4M x 64 |
|----------+-------------------+--------------+--------------|
| 192MB | (1) 16M x 64 | (1) 8M x 64 | None |
|----------+-------------------+--------------+--------------|
| 192MB | (1) 8M x 64 | (1) 8M x 64 | (1) 8M x 64 |
|----------+-------------------+--------------+--------------|
| 200MB | (1) 16M x 64 | (1) 8M x 64 | (1) 1M x 64 |
|----------+-------------------+--------------+--------------|
| 208MB | (1) 16M x 64 | (1) 8M x 64 | (1) 2M x 64 |
|----------+-------------------+--------------+--------------|
| 224MB | (1) 16M x 64 | (1) 8M x 64 | (1) 4M x 64 |
|----------+-------------------+--------------+--------------|
| 256MB | (1) 16M x 64 | (1) 8M x 64 | (1) 8M x 64 |
|----------+-------------------+--------------+--------------|
| 384MB | (1) 16M x 64 | (1) 16M x 64 | (1) 16M x 64 |
|----------+-------------------+--------------+--------------|
| 512MB | (1) 64M x 64 | None | None |
|----------+-------------------+--------------+--------------|
| 512MB | (1) 32M x 64 | (1) 32M x 64 | None |
|----------+-------------------+--------------+--------------|
| 768MB | (1) 32M x 64 | (1) 32M x 64 | (1) 32M x 64 |
|----------+-------------------+--------------+--------------|
| 1024MB | (1) 64M x 64 | (1) 64M x 64 | None |
|------------------------------------------------------------|
| Note: Board accepts EDO & SDRAM memory. SDRAM maximum |
| memory is 512MB. EDO maximum memory is 1024MB. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Note: 256KB/512KB cache is located on the Pentium II CPU. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| Speed | J9 | J10 |
|-------------------+--------------------+-------------------|
| 66MHz | Open | Open |
|-------------------+--------------------+-------------------|
| 68MHz | Open | Closed |
|-------------------+--------------------+-------------------|
| 75MHz | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier|SW1/1 |SW1/2 |SW1/3 |SW1/4 |
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 3x | On | On | Off | On |
|---------+-----------+----------+------+------+------+------|
| 233MHz | 66MHz | 3.5x | On | Off | Off | On |
|---------+-----------+----------+------+------+------+------|
| 266MHz | 66MHz | 4x | On | On | On | Off |
|---------+-----------+----------+------+------+------+------|
| 300MHz | 66MHz | 4.5x | On | Off | On | Off |
|---------+-----------+----------+------+------+------+------|
| 333MHz | 66MHz | 5x | On | On | Off | Off |
+------------------------------------------------------------+