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# AMERICAN MEGATRENDS, INC.
MEGAPRO
Processor Pentium Pro
Processor Speed 133/150/166/180/200MHz
Chip Set Unidentified
Video Chip Set None
Maximum Onboard 512MB (EDO supported)
Memory
Maximum Video None
Memory
Cache 256/512KB (located on Pentium Pro CPU)
BIOS AMI
Dimensions 355mm x 304mm
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), VGA interface, IR connector, VRM
connectors (2), USB connectors (2)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| CPU fan | J2 | PS/2 mouse | P8 |
| | | interface | |
|-------------------+----------+------------------+----------|
| CPU fan | J3 | Floppy drive | P10 |
| | | interface | |
|-------------------+----------+------------------+----------|
| Chassis door | J12 | IDE interface 1 | P11 |
| connector | | | |
|-------------------+----------+------------------+----------|
| IDE interface LED | J13 | Parallel port | P12 |
|-------------------+----------+------------------+----------|
| Speaker | J16 | IDE interface 2 | P13 |
|-------------------+----------+------------------+----------|
| Chassis fan power | J18 | USB connector 1 | P14 |
|-------------------+----------+------------------+----------|
| Green PC | J21 | USB connector 2 | P15 |
| connector | | | |
|-------------------+----------+------------------+----------|
| Power LED & | J23 | VGA connector | P20 |
| keylock | | | |
|-------------------+----------+------------------+----------|
| Turbo LED | J26 | 32-bit PCI slots | PC1 - |
| | | | PC4 |
|-------------------+----------+------------------+----------|
| Reset switch | J28 | VRM connector 1 | VRM1 |
|-------------------+----------+------------------+----------|
| Serial port 1 | P4 | VRM connector 2 | VRM2 |
|-------------------+----------+------------------+----------|
| Serial port 2 | P5 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| » | Factory configured - do not alter | J11 | Open |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | J14 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | PS/2 mouse IRQ12 enabled | J15 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | PS/2 mouse IRQ12 disabled | J15 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | On board PCI VGA enabled | J19 | Open |
|---+-----------------------------------+-------+------------|
| | On board PCI VGA disabled | J19 | Closed |
|---+-----------------------------------+-------+------------|
| » | PCI IRQ disabled | J20 | Closed |
|---+-----------------------------------+-------+------------|
| | PCI IRQ enabled | J20 | Open |
|---+-----------------------------------+-------+------------|
| » | Server management SMI disabled | J22 | Open |
|---+-----------------------------------+-------+------------|
| | Server management SMI enabled | J22 | Closed |
|---+-----------------------------------+-------+------------|
| » | External SMI disabled | J25 | Open |
|---+-----------------------------------+-------+------------|
| | External SMI enabled | J25 | Closed |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | J27 | Open |
|---+-----------------------------------+-------+------------|
| » | CMOS memory normal operation | J29 | Open |
|---+-----------------------------------+-------+------------|
| | CMOS memory clear | J29 | 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON'T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 32MB | (2) 4M x 36 | None | None | None |
|-------+-------------+------------+------------+------------|
| 40MB | (2) 1M x 36 | (2) 2M x | (2) 2M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 40MB | (2) 1M x 36 | (2) 4M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 40MB | (2) 2M x 36 | (2) 1M x | (2) 1M x | (2) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 40MB | (2) 4M x 36 | (2) 1M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 48MB | (2) 2M x 36 | (2) 2M x | (2) 2M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 48MB | (2) 2M x 36 | (2) 4M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 48MB | (2) 4M x 36 | (2) 1M x | (2) 1M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 56MB | (2) 2M x 36 | (2) 2M x | (2) 2M x | (2) 1M 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) 4M x 36 | (2) 4M x | (2) 1M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 72MB | (2) 8M x 36 | (2) 1M x | None | None |
| | | 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 | |
|-------+-------------+------------+------------+------------|
| 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 | |
|-------+-------------+------------+------------+------------|
| 112MB | (2) 4M x 36 | (2) 4M x | (2) 4M x | (2) 2M 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) 16M x | (2) 1M x | None | None |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 144MB | (2) 16M x | (2) 2M x | None | None |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 144MB | (2) 16M x | (2) 1M x | (2) 1M x | None |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 152MB | (2) 16M x | (2) 1M x | (2) 1M x | (2) 1M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 160MB | (2) 16M x | (2) 4M x | None | None |
| | 36 | 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 | |
|-------+-------------+------------+------------+------------|
| 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) 16M x | (2) 4M x | (2) 4M x | None |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 192MB | (2) 16M x | (2) 8M x | None | None |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 200MB | (2) 8M x 36 | (2) 8M x | (2) 8M x | (2) 1M x |
| | | 36 | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON'T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 208MB | (2) 8M x 36 | (2) 8M x | (2) 8M x | (2) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 224MB | (2) 8M x 36 | (2) 8M x | (2) 8M x | (2) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 224MB | (2) 16M x | (2) 4M x | (2) 4M x | (2) 4M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 256MB | (2) 8M x 36 | (2) 8M x | (2) 8M x | (2) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 256MB | (2) 16M x | (2) 8M x | (2) 8M x | None |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 256MB | (2) 16M x | (2) 16M x | None | None |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 264MB | (2) 16M x | (2) 16M x | (2) 1M x | None |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 288MB | (2) 16M x | (2) 16M x | (2) 4M x | None |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 320MB | (2) 16M x | (2) 16M x | (2) 8M x | None |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 320MB | (2) 16M x | (2) 8M x | (2) 8M x | (2) 8M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 384MB | (2) 16M x | (2) 16M x | (2) 16M x | None |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 400MB | (2) 16M x | (2) 16M x | (2) 16M x | (2) 2M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 416MB | (2) 16M x | (2) 16M x | (2) 16M x | (2) 4M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 512MB | (2) 16M x | (2) 16M x | (2) 16M x | (2) 16M x |
| | 36 | 36 | 36 | 36 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Note: 256KB/512KB cache is located on the Pentium Pro CPU. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | J7 | J8 | J9 |
| speed | speed | | | | |
|---------+----------+------------+--------+--------+--------|
| 133MHz | 66MHz | 2x | Open | Closed | Open |
|---------+----------+------------+--------+--------+--------|
| 150MHz | 60MHz | 2.5x | Closed | Open | Closed |
|---------+----------+------------+--------+--------+--------|
| 166MHz | 66MHz | 2.5x | Open | Closed | Open |
|---------+----------+------------+--------+--------+--------|
| 180MHz | 60MHz | 3x | Closed | Open | Closed |
|---------+----------+------------+--------+--------+--------|
| 200MHz | 66MHz | 3x | Open | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | J10 | J17 | J24 |
| speed | speed | | | | |
|--------+--------+------------+--------+------------+-------|
| 133MHz | 66MHz | 2x | Closed | 1 & 2, 3 & | 1 & 2 |
| | | | | 4, 5 & 6, | |
| | | | | 7 & 8 | |
|--------+--------+------------+--------+------------+-------|
| 150MHz | 60MHz | 2.5x | Open | 3 & 4, 5 & | 1 & 2 |
| | | | | 6, 7 & 8 | |
|--------+--------+------------+--------+------------+-------|
| 166MHz | 66MHz | 2.5x | Closed | 3 & 4, 5 & | 1 & 2 |
| | | | | 6, 7 & 8 | |
|--------+--------+------------+--------+------------+-------|
| 180MHz | 60MHz | 3x | Open | 1 & 2, 5 & | 1 & 2 |
| | | | | 6, 7 & 8 | |
|--------+--------+------------+--------+------------+-------|
| 200MHz | 66MHz | 3x | Closed | 1 & 2, 5 & | 1 & 2 |
| | | | | 6, 7 & 8 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | J4 | J5 |
|----------+------------------------+------------------------|
| | None | Open | Open |
|---+------+------------------------+------------------------|
| | 2.1v | 7 & 8 | 7 & 8 |
|---+------+------------------------+------------------------|
| | 2.2v | 5 & 6 | 5 & 6 |
|---+------+------------------------+------------------------|
| | 2.3v | 5 & 6, 7 & 8 | 5 & 6, 7 & 8 |
|---+------+------------------------+------------------------|
| | 2.4v | 3 & 4 | 3 & 4 |
|---+------+------------------------+------------------------|
| | 2.5v | 3 & 4, 7 & 8 | 3 & 4, 7 & 8 |
|---+------+------------------------+------------------------|
| | 2.6v | 3 & 4, 5 & 6 | 3 & 4, 5 & 6 |
|---+------+------------------------+------------------------|
| | 2.7v | 3 & 4, 5 & 6, 7 & 8 | 3 & 4, 5 & 6, 7 & 8 |
|---+------+------------------------+------------------------|
| | 2.8v | 1 & 2 | 1 & 2 |
|---+------+------------------------+------------------------|
| | 2.9v | 1 & 2, 7 & 8 | 1 & 2, 7 & 8 |
|---+------+------------------------+------------------------|
| | 3.0v | 1 & 2, 5 & 6 | 1 & 2, 5 & 6 |
|---+------+------------------------+------------------------|
| | 3.1v | 1 & 2, 5 & 6, 7 & 8 | 1 & 2, 5 & 6, 7 & 8 |
|---+------+------------------------+------------------------|
| | 3.2v | 1 & 2, 3 & 4 | 1 & 2, 3 & 4 |
|---+------+------------------------+------------------------|
| » | 3.3v | 1 & 2, 3 & 4, 7 & 8 | 1 & 2, 3 & 4, 7 & 8 |
|---+------+------------------------+------------------------|
| | 3.4v | 1 & 2, 3 & 4, 5 & 6 | 1 & 2, 3 & 4, 5 & 6 |
|---+------+------------------------+------------------------|
| | 3.5v | 1 & 2, 3 & 4, 5 & 6, 7 | 1 & 2, 3 & 4, 5 & 6, 7 |
| | | & 8 | & 8 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 3.3V POWER SELECTION |
|------------------------------------------------------------|
| Setting | J1 | J6 |
|--------------------+-------------------+-------------------|
| From voltage | Open | 1 & 2, 3 & 4, 5 & |
| regulator | | 6 |
|--------------------+-------------------+-------------------|
| From power supply | 1 & 2, 3 & 4, 5 & | Open |
| | 6 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+