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# AMPTRON INTERNATIONAL, INC.
PM-7700C
Processor CX M1/IBM/Pentium
Processor Speed 75/90/100/120/133/150/166/180/200MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 128MB (EDO supported)
Memory
Maximum Video None
Memory
Cache 256/512KB
BIOS Award
Dimensions 330mm x 218mm
I/O Options 32-bit PCI slots (3), green PC connector,
floppy drive interface, IDE interfaces (2),
parallel port, serial ports (2), cache slot
NPU Options None
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Serial port 1 | CN1 | Turbo switch | J43 |
|-------------------+----------+------------------+----------|
| Parallel port | CN2 | IDE interface | J44 |
| | | LED | |
|-------------------+----------+------------------+----------|
| Floppy drive | CN3 | Turbo LED | J45 |
| interface | | | |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN4 | Power LED & | J46 |
| | | keylock | |
|-------------------+----------+------------------+----------|
| IDE interface 2 | CN5 | Speaker | J48 |
|-------------------+----------+------------------+----------|
| IDE interface 1 | CN6 | 32-bit PCI slots | PC1 – |
| | | | PC3 |
|-------------------+----------+------------------+----------|
| Green PC | J29 | Cache slot | SL1 |
| connector | | | |
|-------------------+----------+------------------+----------|
| Reset switch | J32 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | Factory configured - do not | J16 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | J17 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | J39 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | CMOS memory normal operation | J47 | Open |
|---+---------------------------------+-------+--------------|
| | CMOS memory clear | J47 | Closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | J54 | Unidentified |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 2MB | (2) 256K x 36 | None |
|------------------+--------------------+--------------------|
| 4MB | (2) 512K x 36 | None |
|------------------+--------------------+--------------------|
| 4MB | (2) 256K x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 6MB | (2) 512K x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 36 | None |
|------------------+--------------------+--------------------|
| 8MB | (2) 512K x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 10MB | (2) 1M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 12MB | (2) 1M x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 36 | None |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 18MB | (2) 2M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 20MB | (2) 512K x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 4M x 36 | None |
|------------------+--------------------+--------------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 34MB | (2) 4M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 36MB | (2) 512K x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 2M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 8M x 36 | None |
|------------------+--------------------+--------------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 66MB | (2) 8M x 36 | (2) 256K x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|---------------+-----------------------+--------------------|
| 68MB | (2) 512K x 36 | (2) 8M x 36 |
|---------------+-----------------------+--------------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 |
|---------------+-----------------------+--------------------|
| 80MB | (2) 2M x 36 | (2) 8M x 36 |
|---------------+-----------------------+--------------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 |
|---------------+-----------------------+--------------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. Banks are interchangeable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | SL1 | TAG |
|-----------+-------------+--------------------+-------------|
| 256KB (A) | (8) 32K x 8 | Not installed | (1) 8K x 8 |
|-----------+-------------+--------------------+-------------|
| 256KB (B) | None | 256KB module | None |
| | | installed | |
|-----------+-------------+--------------------+-------------|
| 512KB (A) | (8) 64K x 8 | Not installed | (1) 32K x 8 |
|-----------+-------------+--------------------+-------------|
| 512KB (B) | None | 512KB module | None |
| | | installed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J1 |
|----------------------------+-------------------------------|
| 256KB (A) | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 512KB (A) | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CYRIX) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier| J30 | J31 | J33 |J38 |
|---------+-----------+----------+-------+-------+------+----|
| 120MHz | 50MHz | 2x |Closed |Closed |Closed|Open|
|---------+-----------+----------+-------+-------+------+----|
| 150MHz | 60MHz | 2x |Closed | Open |Closed|Open|
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (IBM) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier| J30 | J31 | J33 |J38 |
|---------+-----------+----------+-------+-------+------+----|
| 120MHz | 50MHz | 2x |Closed |Closed |Closed|Open|
|---------+-----------+----------+-------+-------+------+----|
| 150MHz | 60MHz | 2x |Closed | Open |Closed|Open|
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|------------------------------------------------------------|
|CPU speed|Clock speed|Multiplier| J30 | J31 | J33 | J38 |
|---------+-----------+----------+------+------+------+------|
| 75MHz | 50MHz | 1.5x |Closed|Closed| Open | Open |
|---------+-----------+----------+------+------+------+------|
| 90MHz | 60MHz | 1.5x |Closed| Open | Open | Open |
|---------+-----------+----------+------+------+------+------|
| 100MHz | 66MHz | 1.5x | Open |Closed| Open | Open |
|---------+-----------+----------+------+------+------+------|
| 120MHz | 60MHz | 2x |Closed| Open |Closed| Open |
|---------+-----------+----------+------+------+------+------|
| 133MHz | 66MHz | 2x | Open |Closed|Closed| Open |
|---------+-----------+----------+------+------+------+------|
| 150MHz | 60MHz | 2.5x |Closed| Open |Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 166MHz | 66MHz | 2.5x | Open |Closed|Closed|Closed|
|---------+-----------+----------+------+------+------+------|
| 180MHz | 60MHz | 3x |Closed| Open | Open |Closed|
|---------+-----------+----------+------+------+------+------|
| 200MHz | 66MHz | 3x | Open |Closed| Open |Closed|
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | J40 | J41 | J42 |
|---------------+--------------+--------------+--------------|
| 3.35v | Closed | Open | Open |
|---------------+--------------+--------------+--------------|
| 3.46v | Open | Closed | Open |
|---------------+--------------+--------------+--------------|
| 3.6v | Open | Open | Closed |
+------------------------------------------------------------+