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# M TECHNOLOGY, INC.
R651 PENTIUM PRO
Processor Pentium Pro
Processor Speed 150/166/180/200MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 1GB (BEDO/EDO supported)
Memory
Maximum Video None
Memory
Cache 256/512KB (located on Pentium Pro CPU)
BIOS Award
Dimensions 304mm x 244mm
I/O Options 32-bit PCI slots (4), floppy drive interface,
green PC connector, IDE interfaces (2),
parallel port, PS/2 mouse port, serial ports
(2), USB connectors (2), ATX power connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| ATX power | ATX | Speaker | J2 |
| connector | | | |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN1 | Turbo switch | J3 |
|-------------------+----------+------------------+----------|
| Parallel port | CN2 | Turbo LED | J4 |
|-------------------+----------+------------------+----------|
| PS/2 mouse port | CN3 | Reset switch | J5 |
|-------------------+----------+------------------+----------|
| Serial port 1 | CN4 | Green PC | J6 |
| | | connector | |
|-------------------+----------+------------------+----------|
| Floppy drive | CN5 | IDE interface | J7 |
| interface | | LED | |
|-------------------+----------+------------------+----------|
| IDE interface 2 | CN6 | 32-bit PCI slots | PC1 - |
| | | | PC4 |
|-------------------+----------+------------------+----------|
| IDE interface 1 | CN7 | USB connector 1 | USB1 |
|-------------------+----------+------------------+----------|
| Power LED & | J1 | USB connector 2 | USB2 |
| keylock | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| | ATX power supply enabled | JP4 | Closed |
|---+---------------------------------+-------+--------------|
| | ATX power supply disabled | JP4 | Open |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP9 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Flash BIOS write protect | JP14 | Pins 2 & 3 |
| | disabled | | closed |
|---+---------------------------------+-------+--------------|
| | Flash BIOS write protect | JP14 | Pins 1 & 2 |
| | enabled | | closed |
|---+---------------------------------+-------+--------------|
| » | CMOS memory normal operation | JP15 | Open |
|---+---------------------------------+-------+--------------|
| | CMOS memory clear | JP15 | Closed |
|---+---------------------------------+-------+--------------|
| » | Monitor type select | JP16 | Open |
| | monochrome/VGA | | |
|---+---------------------------------+-------+--------------|
| | Monitor type select CGA | JP16 | Closed |
|---+---------------------------------+-------+--------------|
| | Flash BIOS voltage select 12v | JP17 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Flash BIOS voltage select 5v | JP17 | Pins 1 & 2 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 8MB | (2) 1M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | (2) 2M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 24MB | (2) 1M x 36 | (2) 1M x 36 | (2) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | (2) 1M x 36 | (2) 2M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 32MB | (2) 1M x 36 | (2) 1M x 36 | (2) 1M x | (2) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | (2) 2M x 36 | (2) 1M x 36 | (2) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 32MB | (2) 4M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 40MB | (2) 1M x 36 | (2) 2M x 36 | (2) 2M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 40MB | (2) 1M x 36 | (2) 4M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 40MB | (2) 2M x 36 | (2) 1M x 36 | (2) 1M x | (2) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 48MB | (2) 2M x 36 | (2) 2M x 36 | (2) 2M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 48MB | (2) 2M x 36 | (2) 4M x 36 | None | None |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 48MB | (2) 4M x 36 | (2) 1M x | (2) 1M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 48MB | (2) 4M x 36 | (2) 2M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 56MB | (2) 1M x 36 | (2) 2M x | (2) 2M x | (2) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 56MB | (2) 4M x 36 | (2) 1M x | (2) 1M x | (2) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 64MB | (2) 4M x 36 | (2) 2M x | (2) 2M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 64MB | (2) 4M x 36 | (2) 4M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 64MB | (2) 8M x 36 | None | None | None |
|-------+-------------+------------+------------+------------|
| 72MB | (2) 1M x 36 | (2) 4M x | (2) 4M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 72MB | (2) 1M x 36 | (2) 8M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 72MB | (2) 8M x 36 | (2) 1M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 80MB | (2) 2M x 36 | (2) 4M x | (2) 4M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 80MB | (2) 2M x 36 | (2) 8M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 80MB | (2) 4M x 36 | (2) 2M x | (2) 2M x | (2) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 80MB | (2) 8M x 36 | (2) 1M x | (2) 1M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 80MB | (2) 8M x 36 | (2) 2M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 88MB | (2) 8M x 36 | (2) 1M x | (2) 1M x | (2) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 96MB | (2) 4M x 36 | (2) 4M x | (2) 4M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 96MB | (2) 4M x 36 | (2) 8M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 96MB | (2) 8M x 36 | (2) 2M x | (2) 2M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 96MB | (2) 8M x 36 | (2) 4M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 104MB | (2) 1M x 36 | (2) 4M x | (2) 4M x | (2) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 112MB | (2) 2M x 36 | (2) 4M x | (2) 4M x | (2) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 112MB | (2) 8M x 36 | (2) 2M x | (2) 2M x | (2) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | (2) 4M x 36 | (2) 4M x | (2) 4M x | (2) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | (2) 8M x 36 | (2) 4M x | (2) 4M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 128MB | (2) 8M x 36 | (2) 8M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 128MB | (2) 16M x | None | None | None |
| | 36 | | | |
|-------+-------------+------------+------------+------------|
| 136MB | (2) 1M x 36 | (2) 8M x | (2) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 136MB | (2) 16M x | (2) 1M x | None | None |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 144MB | (2) 2M x 36 | (2) 8M x | (2) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 144MB | (2) 2M x 36 | (2) 16M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 144MB | (2) 16M x | (2) 1M x | (2) 1M x | None |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 144MB | (2) 16M x | (2) 2M x | None | None |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 152MB | (2) 16M x | (2) 1M x | (2) 1M x | (2) 1M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 160MB | (2) 4M x 36 | (2) 8M x | (2) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 160MB | (2) 4M x 36 | (2) 16M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 160MB | (2) 8M x 36 | (2) 4M x | (2) 4M x | (2) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 160MB | (2) 16M x | (2) 2M x | (2) 2M x | None |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 160MB | (2) 16M x | (2) 4M x | None | None |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 176MB | (2) 16M x | (2) 2M x | (2) 2M x | (2) 2M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 192MB | (2) 8M x 36 | (2) 8M x | (2) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 192MB | (2) 8M x 36 | (2) 16M x | None | None |
| | | 36 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|--------+---------------+-----------+-----------+-----------|
| 192MB | (2) 16M x 36 | (2) 4M x | (2) 4M x | None |
| | | 36 | 36 | |
|--------+---------------+-----------+-----------+-----------|
| 192MB | (2) 16M x 36 | (2) 8M x | None | None |
| | | 36 | | |
|--------+---------------+-----------+-----------+-----------|
| 200MB | (2) 1M x 36 | (2) 8M x | (2) 8M x | (2) 8M x |
| | | 36 | 36 | 36 |
|--------+---------------+-----------+-----------+-----------|
| 208MB | (2) 2M x 36 | (2) 8M x | (2) 8M x | (2) 8M x |
| | | 36 | 36 | 36 |
|--------+---------------+-----------+-----------+-----------|
| 224MB | (2) 4M x 36 | (2) 8M x | (2) 8M x | (2) 8M x |
| | | 36 | 36 | 36 |
|--------+---------------+-----------+-----------+-----------|
| 224MB | (2) 16M x 36 | (2) 4M x | (2) 4M x | (2) 4M x |
| | | 36 | 36 | 36 |
|--------+---------------+-----------+-----------+-----------|
| 256MB | (2) 8M x 36 | (2) 8M x | (2) 8M x | (2) 8M x |
| | | 36 | 36 | 36 |
|--------+---------------+-----------+-----------+-----------|
| 256MB | (2) 32M x 36 | None | None | None |
|--------+---------------+-----------+-----------+-----------|
| 256MB | (2) 16M x 36 | (2) 8M x | (2) 8M x | None |
| | | 36 | 36 | |
|--------+---------------+-----------+-----------+-----------|
| 256MB | (2) 16M x 36 | (2) 16M x | None | None |
| | | 36 | | |
|--------+---------------+-----------+-----------+-----------|
| 264MB | (2) 1M x 36 | (2) 16M x | (2) 16M x | None |
| | | 36 | 36 | |
|--------+---------------+-----------+-----------+-----------|
| 264MB | (2) 32M x 36 | (2) 1M x | None | None |
| | | 36 | | |
|--------+---------------+-----------+-----------+-----------|
| 272MB | (2) 2M x 36 | (2) 16M x | (2) 16M x | None |
| | | 36 | 36 | |
|--------+---------------+-----------+-----------+-----------|
| 272MB | (2) 32M x 36 | (2) 1M x | (2) 1M x | None |
| | | 36 | 36 | |
|--------+---------------+-----------+-----------+-----------|
| 272MB | (2) 32M x 36 | (2) 2M x | None | None |
| | | 36 | | |
|--------+---------------+-----------+-----------+-----------|
| 280MB | (2) 32M x 36 | (2) 1M x | (2) 1M x | (2) 1M x |
| | | 36 | 36 | 36 |
|--------+---------------+-----------+-----------+-----------|
| 288MB | (2) 4M x 36 | (2) 16M x | (2) 16M x | None |
| | | 36 | 36 | |
|--------+---------------+-----------+-----------+-----------|
| 288MB | (2) 32M x 36 | (2) 2M x | (2) 2M x | None |
| | | 36 | 36 | |
|--------+---------------+-----------+-----------+-----------|
| 288MB | (2) 32M x 36 | (2) 4M x | None | None |
| | | 36 | | |
|--------+---------------+-----------+-----------+-----------|
| 304MB | (2) 32M x 36 | (2) 2M x | (2) 2M x | (2) 2M x |
| | | 36 | 36 | 36 |
|--------+---------------+-----------+-----------+-----------|
| 320MB | (2) 8M x 36 | (2) 16M x | (2) 16M x | None |
| | | 36 | 36 | |
|--------+---------------+-----------+-----------+-----------|
| 320MB | (2) 32M x 36 | (2) 4M x | (2) 4M x | None |
| | | 36 | 36 | |
|--------+---------------+-----------+-----------+-----------|
| 320MB | (2) 32M x 36 | (2) 8M x | None | None |
| | | 36 | | |
|--------+---------------+-----------+-----------+-----------|
| 320MB | (2) 16M x 36 | (2) 8M x | (2) 8M x | (2) 8M x |
| | | 36 | 36 | 36 |
|--------+---------------+-----------+-----------+-----------|
| 352MB | (2) 32M x 36 | (2) 4M x | (2) 4M x | (2) 4M x |
| | | 36 | 36 | 36 |
|--------+---------------+-----------+-----------+-----------|
| 384MB | (2) 32M x 36 | (2) 8M x | (2) 8M x | None |
| | | 36 | 36 | |
|--------+---------------+-----------+-----------+-----------|
| 384MB | (2) 32M x 36 | (2) 16M x | None | None |
| | | 36 | | |
|--------+---------------+-----------+-----------+-----------|
| 384MB | (2) 16M x 36 | (2) 16M x | (2) 16M x | None |
| | | 36 | 36 | |
|--------+---------------+-----------+-----------+-----------|
| 392MB | (2) 1M x 36 | (2) 16M x | (2) 16M x | (2) 16M x |
| | | 36 | 36 | 36 |
|--------+---------------+-----------+-----------+-----------|
| 400MB | (2) 2M x 36 | (2) 16M x | (2) 16M x | (2) 16M x |
| | | 36 | 36 | 36 |
|--------+---------------+-----------+-----------+-----------|
| 416MB | (2) 4M x 36 | (2) 16M x | (2) 16M x | (2) 16M x |
| | | 36 | 36 | 36 |
|--------+---------------+-----------+-----------+-----------|
| 448MB | (2) 8M x 36 | (2) 16M x | (2) 16M x | (2) 16M x |
| | | 36 | 36 | 36 |
|--------+---------------+-----------+-----------+-----------|
| 448MB | (2) 32M x 36 | (2) 8M x | (2) 8M x | (2) 8M x |
| | | 36 | 36 | 36 |
|--------+---------------+-----------+-----------+-----------|
| 512MB | (2) 32M x 36 | (2) 16M x | (2) 16M x | None |
| | | 36 | 36 | |
|--------+---------------+-----------+-----------+-----------|
| 512MB | (2) 32M x 36 | (2) 32M x | None | None |
| | | 36 | | |
|--------+---------------+-----------+-----------+-----------|
| 512MB | (2) 16M x 36 | (2) 16M x | (2) 16M x | (2) 16M x |
| | | 36 | 36 | 36 |
|--------+---------------+-----------+-----------+-----------|
| 640MB | (2) 32M x 36 | (2) 16M x | (2) 16M x | (2) 16M x |
| | | 36 | 36 | 36 |
|--------+---------------+-----------+-----------+-----------|
| 768MB | (2) 32M x 36 | (2) 32M x | (2) 32M x | None |
| | | 36 | 36 | |
|--------+---------------+-----------+-----------+-----------|
| 1GB | (2) 32M x 36 | (2) 32M x | (2) 32M x | (2) 32M x |
| | | 36 | 36 | 36 |
|------------------------------------------------------------|
| Note: Board accepts BEDO/EDO memory. Board also |
| accepts x 32 SIMMs. Banks are interchangeable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Note: 256KB/512KB cache is located on the Pentium Pro CPU. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier| JP1 | JP2 | JP7 | JP8 |
|---------+-----------+----------+------+------+------+------|
| 150MHz | 60MHz | 2.5x | Open |Closed| Open |Closed|
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2.5x |Closed| Open |Closed| Open |
|---------+-----------+----------+------+------+------+------|
| 180MHz | 60MHz | 3x | Open |Closed| Open |Closed|
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 3x |Closed| Open |Closed| Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CON’T) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier| JP10 | JP11 | JP12 | JP13 |
|---------+-----------+----------+------+------+------+------|
| 150MHz | 60MHz | 2.5x | Open |Closed|Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2.5x | Open |Closed|Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 180MHz | 60MHz | 3x |Closed| Open |Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 3x |Closed| Open |Closed|Closed|
+------------------------------------------------------------+