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# M TECHNOLOGY, INC.
M668DS STALLION
Device Type Mainboard
Processor Pentium II
Processor Speed 233/266/300MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 1GB (EDO & SDRAM supported)
Memory
Maximum Video None
Memory
Cache 256/512KB (located on Pentium II CPU)
BIOS AMI
Dimensions 305mm x 245mm
I/O Options 32-bit PCI slots (3), floppy drive interface,
IDE interfaces (2), Ultra SCSI interface,
Ultra Wide SCSI interface, parallel port,
PS/2 mouse port, serial ports (2), IR
connector, USB connectors (2), ATX power
connector, AGP slot, RAID slot
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| AGP slot | AGP | IR connector | J2 |
|-------------------+----------+------------------+----------|
| ATX power | ATX | Reset switch | J3A |
| connector | | | |
|-------------------+----------+------------------+----------|
| Parallel port | CN1 | Soft off power | J3B |
| | | supply | |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN2 | Turbo LED | J3C |
|-------------------+----------+------------------+----------|
| Serial port 1 | CN3 | IDE interface | J3D |
| | | LED | |
|-------------------+----------+------------------+----------|
| USB connector 2 | CN4 | Power LED & | J3E |
| | | keylock | |
|-------------------+----------+------------------+----------|
| USB connector 1 | CN5 | Speaker | J3F |
|-------------------+----------+------------------+----------|
| PS/2 mouse port | CN6 | Wake on LAN | J10 |
| | | connector | |
|-------------------+----------+------------------+----------|
| Floppy drive | CN7 | CPU fan power | JP8 |
| interface | | | |
|-------------------+----------+------------------+----------|
| Ultra SCSI | CN8 | CPU fan power | JP11 |
| interface | | | |
|-------------------+----------+------------------+----------|
| Ultra Wide SCSI | CN9 | 32-bit PCI slots | PC1 – |
| interface | | | PC3 |
|-------------------+----------+------------------+----------|
| IDE interface 1 | CN10 | RAID slot | SL1 |
|-------------------+----------+------------------+----------|
| IDE interface 2 | CN11 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| » | CMOS memory normal operation | JP3 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | CMOS memory clear | JP3 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Modem wake up COM select COM2 | JP6 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | Modem wake up COM select COM1 | JP6 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | DRAM EEC mode select non EEC | JP9 | Pins 2 & 3 |
| | error | | closed |
|---+-----------------------------------+-------+------------|
| | DRAM EEC mode select EEC error | JP9 | Pins 1 & 2 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 64 | None | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 64 | None | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 64 | (1) 1M x 64 | None | None |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 2M x 64 | (1) 1M x 64 | None | None |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 1M x 64 | (1) 1M x 64 | (1) 1M x | None |
| | | | 64 | |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 64 | None | None | None |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 2M x 64 | (1) 2M x 64 | None | None |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 1M x 64 | (1) 1M x 64 | (1) 1M x | (1) 1M x |
| | | | 64 | 64 |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 4M x 64 | (1) 1M x 64 | None | None |
|------+-------------+-------------+------------+------------|
| 48MB | (1) 4M x 64 | (1) 2M x 64 | None | None |
|------+-------------+-------------+------------+------------|
| 48MB | (1) 2M x 64 | (1) 2M x 64 | (1) 2M x | None |
| | | | 64 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|----------+------------+------------+-----------+-----------|
| 64MB | (1) 2M x | (1) 2M x | (1) 2M x | (1) 2M x |
| | 64 | 64 | 64 | 64 |
|----------+------------+------------+-----------+-----------|
| 64MB | (1) 8M x | None | None | None |
| | 64 | | | |
|----------+------------+------------+-----------+-----------|
| 64MB | (1) 4M x | (1) 4M x | None | None |
| | 64 | 64 | | |
|----------+------------+------------+-----------+-----------|
| 72MB | (1) 8M x | (1) 1M x | None | None |
| | 64 | 64 | | |
|----------+------------+------------+-----------+-----------|
| 80MB | (1) 8M x | (1) 2M x | None | None |
| | 64 | 64 | | |
|----------+------------+------------+-----------+-----------|
| 96MB | (1) 8M x | (1) 4M x | None | None |
| | 64 | 64 | | |
|----------+------------+------------+-----------+-----------|
| 96MB | (1) 4M x | (1) 4M x | (1) 4M x | None |
| | 64 | 64 | 64 | |
|----------+------------+------------+-----------+-----------|
| 128MB | (1) 16M x | None | None | None |
| | 64 | | | |
|----------+------------+------------+-----------+-----------|
| 128MB | (1) 8M x | (1) 8M x | None | None |
| | 64 | 64 | | |
|----------+------------+------------+-----------+-----------|
| 128MB | (1) 4M x | (1) 4M x | (1) 4M x | (1) 4M x |
| | 64 | 64 | 64 | 64 |
|----------+------------+------------+-----------+-----------|
| 136MB | (1) 16M x | (1) 1M x | None | None |
| | 64 | 64 | | |
|----------+------------+------------+-----------+-----------|
| 144MB | (1) 16M x | (1) 2M x | None | None |
| | 64 | 64 | | |
|----------+------------+------------+-----------+-----------|
| 152MB | (1) 16M x | (1) 1M x | (1) 1M x | (1) 1M x |
| | 64 | 64 | 64 | 64 |
|----------+------------+------------+-----------+-----------|
| 160MB | (1) 16M x | (1) 4M x | None | None |
| | 64 | 64 | | |
|----------+------------+------------+-----------+-----------|
| 176MB | (1) 16M x | (1) 2M x | (1) 2M x | (1) 2M x |
| | 64 | 64 | 64 | 64 |
|----------+------------+------------+-----------+-----------|
| 192MB | (1) 16M x | (1) 8M x | None | None |
| | 64 | 64 | | |
|----------+------------+------------+-----------+-----------|
| 192MB | (1) 8M x | (1) 8M x | (1) 8M x | None |
| | 64 | 64 | 64 | |
|----------+------------+------------+-----------+-----------|
| 224MB | (1) 16M x | (1) 4M x | (1) 4M x | (1) 4M x |
| | 64 | 64 | 64 | 64 |
|----------+------------+------------+-----------+-----------|
| 256MB | (1) 32M x | None | None | None |
| | 64 | | | |
|----------+------------+------------+-----------+-----------|
| 256MB | (1) 16M x | (1) 16M x | None | None |
| | 64 | 64 | | |
|----------+------------+------------+-----------+-----------|
| 256MB | (1) 8M x | (1) 8M x | (1) 8M x | (1) 8M x |
| | 64 | 64 | 64 | 64 |
|----------+------------+------------+-----------+-----------|
| 272MB | (1) 16M x | (1) 16M x | (1) 1M x | (1) 1M x |
| | 64 | 64 | 64 | 64 |
|----------+------------+------------+-----------+-----------|
| 280MB | (1) 32M x | (1) 1M x | (1) 1M x | (1) 1M x |
| | 64 | 64 | 64 | 64 |
|----------+------------+------------+-----------+-----------|
| 288MB | (1) 16M x | (1) 16M x | (1) 2M x | (1) 2M x |
| | 64 | 64 | 64 | 64 |
|----------+------------+------------+-----------+-----------|
| 304MB | (1) 32M x | (1) 2M x | (1) 2M x | (1) 2M x |
| | 64 | 64 | 64 | 64 |
|----------+------------+------------+-----------+-----------|
| 320MB | (1) 16M x | (1) 16M x | (1) 4M x | (1) 4M x |
| | 64 | 64 | 64 | 64 |
|----------+------------+------------+-----------+-----------|
| 320MB | (1) 16M x | (1) 8M x | (1) 8M x | (1) 8M x |
| | 64 | 64 | 64 | 64 |
|----------+------------+------------+-----------+-----------|
| 352MB | (1) 32M x | (1) 4M x | (1) 4M x | (1) 4M x |
| | 64 | 64 | 64 | 64 |
|----------+------------+------------+-----------+-----------|
| 384MB | (1) 16M x | (1) 16M x | (1) 16M x | None |
| | 64 | 64 | 64 | |
|----------+------------+------------+-----------+-----------|
| 448MB | (1) 32M x | (1) 8M x | (1) 8M x | (1) 8M x |
| | 64 | 64 | 64 | 64 |
|----------+------------+------------+-----------+-----------|
| 512MB | (1) 32M x | (1) 32M x | None | None |
| | 64 | 64 | | |
|----------+------------+------------+-----------+-----------|
| 512MB | (1) 16M x | (1) 16M x | (1) 16M x | (1) 16M x |
| | 64 | 64 | 64 | 64 |
|----------+------------+------------+-----------+-----------|
| 640MB | (1) 32M x | (1) 16M x | (1) 16M x | (1) 16M x |
| | 64 | 64 | 64 | 64 |
|----------+------------+------------+-----------+-----------|
| 768MB | (1) 32M x | (1) 32M x | (1) 32M x | None |
| | 64 | 64 | 64 | |
|----------+------------+------------+-----------+-----------|
| 1024MB | (1) 32M x | (1) 32M x | (1) 32M x | (1) 32M x |
| | 64 | 64 | 64 | 64 |
|------------------------------------------------------------|
| Note: Board accepts EDO & SDRAM memory. Maximum SDRAM |
| is 512MB. Maximum EDO is 1GB. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Note: 256KB/512KB cache is located on the Pentium II CPU. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| CPU |Clock|Multiplier|SW1/1|SW1/2|SW1/3|SW1/4|SW1/5|SW1/6|
| speed |speed| | | | | | | |
|-------+-----+----------+-----+-----+-----+-----+-----+-----|
|233MHz |66MHz| 3.5x | On | Off | Off | On | Off | Off |
|-------+-----+----------+-----+-----+-----+-----+-----+-----|
|266MHz |66MHz| 4x | Off | On | On | On | Off | Off |
|-------+-----+----------+-----+-----+-----+-----+-----+-----|
|300MHz |66MHz| 4.5x | Off | On | Off | On | Off | Off |
+------------------------------------------------------------+