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# MICROWAY, INC.
PC164 SCREAMER
Processor Alpha
Processor Speed 300/333/366/400/433MHz
Chip Set Digital
Video Chip Set None
Maximum Onboard 512MB
Memory
Maximum Video None
Memory
Cache 1024KB
BIOS Unidentified
Dimensions 305mm x 244mm
I/O Options 32-bit PCI slots (2), 64-bit PCI slots (2),
floppy drive interface, IDE interfaces (2),
parallel port, PS/2 mouse port, serial ports
(2)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Chassis fan power | J2 | Chassis fan | J22 |
| | | power | |
|-------------------+----------+------------------+----------|
| Power connector | J3 | Speaker | J23 |
|-------------------+----------+------------------+----------|
| Serial port 1 | J4 | Reset switch | J24 |
|-------------------+----------+------------------+----------|
| Serial port 2 | J4A | Halt connector | J25 |
|-------------------+----------+------------------+----------|
| IDE interface 2 | J13 | Power LED & | J27 |
| | | keylock | |
|-------------------+----------+------------------+----------|
| IDE interface 1 | J14 | IDE interface | J28 |
| | | LED | |
|-------------------+----------+------------------+----------|
| PS/2 mouse port | J15 | SROM test port | J32 |
|-------------------+----------+------------------+----------|
| Parallel port | J16 | 32-bit PCI slots | PC1 & |
| | | | PC2 |
|-------------------+----------+------------------+----------|
| Floppy drive | J18 | 64-bit PCI slots | SL1 & |
| interface | | | SL2 |
|-------------------+----------+------------------+----------|
| Chassis fan power | J21 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|------------------------------------+----------+------------|
| » | Factory configured - do not | J30 pins | Open |
| | alter | 9 & 10 | |
|---+--------------------------------+----------+------------|
| » | Factory configured - do not | J30 pins | Open |
| | alter | 15 & 16 | |
|---+--------------------------------+----------+------------|
| » | Mini debugger disabled | J30 pins | Open |
| | | 21 & 22 | |
|---+--------------------------------+----------+------------|
| | Mini debugger enabled | J30 pins | Closed |
| | | 21 & 22 | |
|---+--------------------------------+----------+------------|
| » | Boot option select Windows NT | J30 pins | Open |
| | ARC firmware loaded | 23 & 24 | |
|---+--------------------------------+----------+------------|
| | Boot option select fail safe | J30 pins | Closed |
| | boot loaded | 23 & 24 | |
|---+--------------------------------+----------+------------|
| » | Jumper not used | J30 pins | N/A |
| | | 25 & 26 | |
|---+--------------------------------+----------+------------|
| » | Flash BIOS update enabled | J31 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+----------+------------|
| | Flash BIOS update disabled | J31 | Pins 1 & 2 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 16MB | (4) 1M x 36 | None |
|------------------+--------------------+--------------------|
| 32MB (A) | (4) 1M x 36 | (4) 1M x 36 |
|------------------+--------------------+--------------------|
| 32MB (B) | (4) 2M x 36 | None |
|------------------+--------------------+--------------------|
| 64MB (A) | (4) 2M x 36 | (4) 2M x 36 |
|------------------+--------------------+--------------------|
| 64MB (B) | (4) 4M x 36 | None |
|------------------+--------------------+--------------------|
| 128MB (A) | (4) 4M x 36 | (4) 4M x 36 |
|------------------+--------------------+--------------------|
| 128MB (B) | (4) 8M x 36 | None |
|------------------+--------------------+--------------------|
| 256MB (A) | (4) 8M x 36 | (4) 8M x 36 |
|------------------+--------------------+--------------------|
| 256MB (B) | (4) 16M x 36 | None |
|------------------+--------------------+--------------------|
| 512MB (B) | (4) 16M x 36 | (4) 16M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J1 |
|-------------------------------+----------------------------|
| 16MB | Closed |
|-------------------------------+----------------------------|
| 32MB (A) | Open |
|-------------------------------+----------------------------|
| 32MB (B) | Closed |
|-------------------------------+----------------------------|
| 64MB (A) | Open |
|-------------------------------+----------------------------|
| 64MB (B) | Closed |
|-------------------------------+----------------------------|
| 128MB (A) | Open |
|-------------------------------+----------------------------|
| 128MB (B) | Closed |
|-------------------------------+----------------------------|
| 256MB (A) | Open |
|-------------------------------+----------------------------|
| 256MB (B) | Closed |
|-------------------------------+----------------------------|
| 512MB (B) | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Note: Board can be installed with either 1MB or 2MB of |
| cache. The size of the chips is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J30 |
|------------------------+-----------------------------------|
| 1MB | Pins 11 & 12, 13 & 14 open |
|------------------------+-----------------------------------|
| 2MB | Pins 11 & 12 open, 13 & 14 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | J30 |
|----------------------------+-------------------------------|
| 9ns | Pins 17 & 18, 19 & 20 open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| Speed | J30 |
|----------------------------+-------------------------------|
| 300MHz | Pins 3 & 4, 5 & 6 closed |
|----------------------------+-------------------------------|
| 333MHz | Pins 3 & 4, 7 & 8 closed |
|----------------------------+-------------------------------|
| 366MHz | Pins 3 & 4 closed |
|----------------------------+-------------------------------|
| 400MHz | Pins 5 & 6, 7 & 8 closed |
|----------------------------+-------------------------------|
| 433MHz | Pins 5 & 6 closed |
+------------------------------------------------------------+