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# SOYO TECHNOLOGY COMPANY, INC.
SY-05TA2/A5
Processor Pentium
Processor 75/90/100/120/133/150MHz
Speed
Chip Set Unidentified
Max. Onboard 128MB
DRAM
Cache 256/512KB
BIOS Award
Dimensions 330mm x 218mm
I/O Options 32-bit PCI slots (4), floppy drive interface, IDE
interface, parallel port, serial ports (2)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------------+----------+---------------+----------|
| Serial port 1 | CN1 | Speaker | J18 |
|----------------------+----------+---------------+----------|
| Serial port 2 | CN2 | Reset switch | J19 |
|----------------------+----------+---------------+----------|
| Floppy drive | CN3 | Turbo switch | J21 |
| interface | | | |
|----------------------+----------+---------------+----------|
| Parallel port | CN4 | Turbo LED | J22 |
|----------------------+----------+---------------+----------|
| IDE interface | CN5 | IDE interface | JP16 |
| (secondary) | | LED | |
|----------------------+----------+---------------+----------|
| IDE interface | CN6 | 32-bit PCI | PCI1 - |
| (primary) | | slots | PCI4 |
|----------------------+----------+---------------+----------|
| Power LED & keylock | J17 | | |
|------------------------------------------------------------|
| Note: The location of J21 is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Factory configured - do not | J3 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Monitor type select color | JP3 | Closed |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | JP3 | Open |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP13 | Closed |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP14 | pins 1 & 2 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP15 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP21 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP22 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Pipeline mode disabled | JP30 | Open |
|---+----------------------------------+--------+------------|
| | Pipeline mode enabled | JP30 | Closed |
|---+----------------------------------+--------+------------|
| » | CPU cache type select write back | JP31 | Open |
|---+----------------------------------+--------+------------|
| | CPU cache type select write | JP31 | Closed |
| | through | | |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | JP32 | Open |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP32 | Closed |
|------------------------------------------------------------|
| Note: The location of J3 is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 4MB | (2) 256K x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 4MB | (2) 512K x 36 | NONE |
|------------------+--------------------+--------------------|
| 6MB | (2) 256K x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 6MB | (2) 512K x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 8MB | (2) 512K x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 36 | NONE |
|------------------+--------------------+--------------------|
| 10MB | (2) 256K x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 10MB | (2) 1M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 12MB | (2) 512K x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 12MB | (2) 1M x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 36 | NONE |
|------------------+--------------------+--------------------|
| 18MB | (2) 256K x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 18MB | (2) 2M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 20MB | (2) 512K x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 20MB | (2) 2M x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 24MB | (2) 1M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 4M x 36 | NONE |
|------------------+--------------------+--------------------|
| 34MB | (2) 256K x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 34MB | (2) 4M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 36MB | (2) 512K x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 36MB | (2) 4M x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 1M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 2M x 36 | (2) 4M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 8M x 36 | NONE |
|------------------+--------------------+--------------------|
| 66MB | (2) 256K x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 66MB | (2) 8M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 68MB | (2) 512K x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 68MB | (2) 8M x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 72MB | (2) 1M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 80MB | (2) 2M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 96MB | (2) 4M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 128MB | (2) 16M x 36 | NONE |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 256KB | (8) 32K x 8 | (1) 8K x 8 |
|------------------+--------------------+--------------------|
| 512KB | (8) 64K x 8 | (1) 16K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP12 | JP27 | JP28 |
|-------+-----------------+-----------------+----------------|
| 256KB | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed |
|-------+-----------------+-----------------+----------------|
| 512KB | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JP1 | JP2 |
|--------------------+-------------------+-------------------|
| 3.33v | Open | Closed |
|--------------------+-------------------+-------------------|
| Mixed SRAM | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP18 | JP19 |
|--------------------+-------------------+-------------------|
| 75MHz | Open | Open |
|--------------------+-------------------+-------------------|
| 90MHz | Open | Open |
|--------------------+-------------------+-------------------|
| 90MHz | Closed | Open |
|--------------------+-------------------+-------------------|
| 100MHz | Open | Open |
|--------------------+-------------------+-------------------|
| 100MHz | Closed | Closed |
|--------------------+-------------------+-------------------|
| 120MHz | Closed | Open |
|--------------------+-------------------+-------------------|
| 133Mhz | Closed | Closed |
|--------------------+-------------------+-------------------|
| 150MHz | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP17 |
|-------------------------------+----------------------------|
| 75MHz | pins 1 & 2 closed |
|-------------------------------+----------------------------|
| 125MHz | pins 1 & 2 closed |
|-------------------------------+----------------------------|
| Other Pentium CPU’s | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU BUS RATIO CONFIGURATION |
|------------------------------------------------------------|
| Ratio | JP29 |
|------------------------------+-----------------------------|
| 2/1 | Closed |
|------------------------------+-----------------------------|
| 3/2 | Open |
|------------------------------+-----------------------------|
| 5/2 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | J23 | J24 | J25 |
|-------------------+--------------+-----------+-------------|
| » | 3.33v | Open | Open | Closed |
|---+---------------+--------------+-----------+-------------|
| | 3.45 - 3.6v | Closed | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| HDD CONFIGURATION |
|------------------------------------------------------------|
| Mode | JP10 | JP11 |
|------------------+--------------------+--------------------|
| PIO | pins 2 & 3 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| DMA | pins 1 & 2 closed | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA/DRQ CONFIGURATION |
|------------------------------------------------------------|
| Select | JP4 | JP5 | JP23 | JP24 | JP25 | JP26 |
|----------+--------+--------+-------+-------+-------+-------|
| None | Open | Open | Open | Open | Open | Open |
|----------+--------+--------+-------+-------+-------+-------|
|DRQ0/DACK0| Open | Open | Open | Open |Closed |Closed |
|----------+--------+--------+-------+-------+-------+-------|
|DRQ3/DACK3| Closed | Open |Closed | Open | Open | Open |
|----------+--------+--------+-------+-------+-------+-------|
|DRQ7/DACK7| Open | Closed | Open |Closed | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PCI/IRQ CONFIGURATION |
|------------------------------------------------------------|
| Select | JP6 | JP7 | JP8 | JP9 |
|------------+-----------+-----------+-----------+-----------|
| IRQ10/INTA | Open | Open | Open | pins 1 & |
| | | | | 2 closed |
|------------+-----------+-----------+-----------+-----------|
| IRQ10/INTB | Open | Open | Open | pins 2 & |
| | | | | 3 closed |
|------------+-----------+-----------+-----------+-----------|
| IRQ10/INTC | pins 1 & | Open | Open | Open |
| | 2 closed | | | |
|------------+-----------+-----------+-----------+-----------|
| IRQ10/INTD | pins 2 & | Open | Open | Open |
| | 3 closed | | | |
|------------+-----------+-----------+-----------+-----------|
| IRQ11/INTA | Open | Open | pins 1 & | Open |
| | | | 2 closed | |
|------------+-----------+-----------+-----------+-----------|
| IRQ11/INTB | Open | Open | pins 2 & | Open |
| | | | 3 closed | |
|------------+-----------+-----------+-----------+-----------|
| IRQ11/INTC | Open | pins 1 & | Open | Open |
| | | 2 closed | | |
|------------+-----------+-----------+-----------+-----------|
| IRQ11/INTD | Open | pins 2 & | Open | Open |
| | | 3 closed | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS CONFIGURATION |
|------------------------------------------------------------|
| Type | JP33 | JP34 |
|------------------+--------------------+--------------------|
| EPROM | pins 1 & 2 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| FLASH | pins 2 & 3 closed | pins 1 & 2 closed |
+------------------------------------------------------------+