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# TYAN COMPUTER CORPORATION
S1576S
Device Type Mainboard
Processor CX 6X86/CX 6X86L/CX 686MX/AM K5/AM K6/Pentium
Processor Speed 75/90/100/120/133/150/166/200/233MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 256MB (EDO & SDRAM supported)
Memory
Maximum Video None
Memory
Cache 512KB
BIOS Award
Dimensions 305mm x 244mm
I/O Options 32-bit PCI slots (5), floppy drive interface,
game port, green PC connector, IDE interfaces
(2), parallel port, PS/2 mouse port, serial
ports (2), IR connector, USB connectors (2),
ATX power connector
NPU Options None
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------+-------------+----------------+------------|
| ATX power | ATX | Green PC | J8/pins 3 |
| connector | | connector | & 4 |
|----------------+-------------+----------------+------------|
| IDE interface | CN1 | IR connector | J8/pins 6 |
| 2 | | | - 11 |
|----------------+-------------+----------------+------------|
| IDE interface | CN2 | IDE interface | J8/pins 13 |
| 1 | | LED 1 | & 14 |
|----------------+-------------+----------------+------------|
| Floppy drive | CN3 | IDE interface | J8/pins 15 |
| interface | | LED 2 | & 16 |
|----------------+-------------+----------------+------------|
| USB connector | CN4 | Power LED | J8/pins 18 |
| 1 | | | & 20 |
|----------------+-------------+----------------+------------|
| USB connector | CN5 | Reset switch | J8/pins 22 |
| 2 | | | & 23 |
|----------------+-------------+----------------+------------|
| Game port | CN6 | Speaker | J8/pins 24 |
| | | | - 27 |
|----------------+-------------+----------------+------------|
| Wake on LAN | CON1 | Serial port 1 | J14 |
| connector | | | |
|----------------+-------------+----------------+------------|
| Chassis fan | FAN1 | Parallel port | J17 |
| power | | | |
|----------------+-------------+----------------+------------|
| Chassis fan | FAN2 | PS/2 mouse | J19 |
| power | | port | |
|----------------+-------------+----------------+------------|
| Chassis fan | FAN3 | Serial port 2 | J22 |
| power | | | |
|----------------+-------------+----------------+------------|
| IR connector | J2 | 32-bit PCI | PC1 – PC5 |
| | | slots | |
|----------------+-------------+----------------+------------|
| Soft off power | J8/pins 1 & | | |
| supply | 2 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | Factory configured - do not | CDI1 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | J25 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | J26 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | J27 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | CMOS memory normal operation | JP1 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | CMOS memory clear | JP1 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Flash BIOS voltage select 12v | JP2 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Flash BIOS voltage select 5v | JP2 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP22 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP23 | Unidentified |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 8MB | (1) 1M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (1) 2M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (1) 1M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 24MB | (1) 2M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 24MB | (1) 1M x 64 | (1) 1M x 64 | (1) 1M x 64 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 32MB | (1) 4M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 32MB | (1) 2M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 32MB | (1) 2M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 40MB | (1) 4M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 40MB | (1) 2M x 64 | (1) 2M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 48MB | (1) 4M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 48MB | (1) 4M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 48MB | (1) 2M x 64 | (1) 2M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 56MB | (1) 4M x 64 | (1) 2M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 64MB | (1) 8M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 64MB | (1) 4M x 64 | (1) 2M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 64MB | (1) 4M x 64 | (1) 4M x 64 | None |
|------------+---------------+---------------+---------------|
| 72MB | (1) 8M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 72MB | (1) 4M x 64 | (1) 4M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 80MB | (1) 8M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 80MB | (1) 8M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 80MB | (1) 4M x 64 | (1) 4M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 88MB | (1) 8M x 64 | (1) 2M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 96MB | (1) 8M x 64 | (1) 2M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 96MB | (1) 8M x 64 | (1) 4M x 64 | None |
|------------+---------------+---------------+---------------|
| 96MB | (1) 4M x 64 | (1) 4M x 64 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 104MB | (1) 8M x 64 | (1) 4M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 112MB | (1) 8M x 64 | (1) 4M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 128MB | (1) 16M x 64 | None | None |
|------------+---------------+---------------+---------------|
| 128MB | (1) 8M x 64 | (1) 4M x 64 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 128MB | (1) 8M x 64 | (1) 8M x 64 | None |
|------------+---------------+---------------+---------------|
| 136MB | (1) 16M x 64 | (1) 1M x 64 | None |
|------------+---------------+---------------+---------------|
| 136MB | (1) 8M x 64 | (1) 8M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 144MB | (1) 16M x 64 | (1) 1M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 144MB | (1) 16M x 64 | (1) 2M x 64 | None |
|------------+---------------+---------------+---------------|
| 144MB | (1) 8M x 64 | (1) 8M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 152MB | (1) 16M x 64 | (1) 2M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 160MB | (1) 16M x 64 | (1) 2M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 160MB | (1) 16M x 64 | (1) 4M x 64 | None |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 160MB | (1) 8M x 64 | (1) 8M x 64 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 168MB | (1) 16M x 64 | (1) 4M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 176MB | (1) 16M x 64 | (1) 4M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 192MB | (1) 16M x 64 | (1) 4M x 64 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 192MB | (1) 16M x 64 | (1) 8M x 64 | None |
|------------+---------------+---------------+---------------|
| 192MB | (1) 8M x 64 | (1) 8M x 64 | (1) 8M x 64 |
|------------+---------------+---------------+---------------|
| 200MB | (1) 16M x 64 | (1) 8M x 64 | (1) 1M x 64 |
|------------+---------------+---------------+---------------|
| 208MB | (1) 16M x 64 | (1) 8M x 64 | (1) 2M x 64 |
|------------+---------------+---------------+---------------|
| 224MB | (1) 16M x 64 | (1) 8M x 64 | (1) 4M x 64 |
|------------+---------------+---------------+---------------|
| 256MB | (1) 16M x 64 | (1) 8M x 64 | (1) 8M x 64 |
|------------------------------------------------------------|
| Note: Board accepts EDO & SDRAM memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIMM VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | DIM31 | DIM32 | DIM51 | DIM52 |
|------------+-----------+-----------+-----------+-----------|
| 3.3v | Closed | Closed | Open | Open |
|------------+-----------+-----------+-----------+-----------|
| 5v | Open | Open | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 |
|----------------------------+-------------------------------|
| 512KB | (2) 64K x 32 |
+------------------------------------------------------------+
+-------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86) |
|-------------------------------------------------------------|
| CPU |Clock|Multiplier| BF0 |BF1 |BF2 | FS0 | FS1 | FS2 |
|speed |speed| | | | | | | |
|------+-----+----------+------+----+----+------+------+------|
|120MHz|50MHz| 2x |Closed|Open|Open|Closed|Closed|Closed|
|------+-----+----------+------+----+----+------+------+------|
|150MHz|60MHz| 2x |Closed|Open|Open|Closed| Open | Open |
|------+-----+----------+------+----+----+------+------+------|
|166MHz|66MHz| 2x |Closed|Open|Open| Open | Open | Open |
|------+-----+----------+------+----+----+------+------+------|
|200MHz|75MHz| 2x |Closed|Open|Open| Open |Closed| Open |
+-------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86L) |
|------------------------------------------------------------|
| CPU |Clock|Multiplier| BF0 |BF1 |BF2 | FS0 | FS1 |FS2 |
| speed |speed| | | | | | | |
|-------+-----+----------+------+----+----+------+------+----|
|150MHz |60MHz| 2x |Closed|Open|Open|Closed| Open |Open|
|-------+-----+----------+------+----+----+------+------+----|
|166MHz |66MHz| 2x |Closed|Open|Open| Open | Open |Open|
|-------+-----+----------+------+----+----+------+------+----|
|200MHz |75MHz| 2x |Closed|Open|Open| Open |Closed|Open|
+------------------------------------------------------------+
+-------------------------------------------------------------+
| CPU SPEED SELECTION (CX 6X86MX) |
|-------------------------------------------------------------|
| CPU |Clock|Multiplier| BF0 | BF1 |BF2 | FS0 | FS1 |FS2 |
|speed |speed| | | | | | | |
|------+-----+----------+------+------+----+------+------+----|
|166MHz|60MHz| 2.5x |Closed|Closed|Open|Closed| Open |Open|
|------+-----+----------+------+------+----+------+------+----|
|166MHz|66MHz| 2x |Closed| Open |Open| Open | Open |Open|
|------+-----+----------+------+------+----+------+------+----|
|200MHz|66MHz| 2.5x |Closed|Closed|Open| Open | Open |Open|
|------+-----+----------+------+------+----+------+------+----|
|200MHz|75MHz| 2x |Closed| Open |Open| Open |Closed|Open|
|------+-----+----------+------+------+----+------+------+----|
|233MHz|66MHz| 3x | Open |Closed|Open| Open | Open |Open|
|------+-----+----------+------+------+----+------+------+----|
|233MHz|75MHz| 2.5x |Closed|Closed|Open| Open |Closed|Open|
+-------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K5) |
|------------------------------------------------------------|
| CPU |Clock|Multiplier| BF0 | BF1 |BF2 | FS0 |FS1 |FS2 |
| speed |speed| | | | | | | |
|-------+-----+----------+------+------+----+------+----+----|
| 90MHz |60MHz| 1.5x | Open | Open |Open|Closed|Open|Open|
|-------+-----+----------+------+------+----+------+----+----|
|100MHz |66MHz| 1.5x | Open | Open |Open| Open |Open|Open|
|-------+-----+----------+------+------+----+------+----+----|
|120MHz |60MHz| 2x |Closed| Open |Open|Closed|Open|Open|
|-------+-----+----------+------+------+----+------+----+----|
|133MHz |66MHz| 2x |Closed| Open |Open| Open |Open|Open|
|-------+-----+----------+------+------+----+------+----+----|
|166MHz |66MHz| 2.5x |Closed|Closed|Open| Open |Open|Open|
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (AM K6) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| BF0 | BF1 |BF2 |FS0 |FS1 |FS2 |
| speed | speed | | | | | | | |
|-------+-------+----------+------+------+----+----+----+----|
|166MHz | 66MHz | 2.5x |Closed|Closed|Open|Open|Open|Open|
|-------+-------+----------+------+------+----+----+----+----|
|200MHz | 66MHz | 3x | Open |Closed|Open|Open|Open|Open|
|-------+-------+----------+------+------+----+----+----+----|
|233MHz | 66MHz | 3.5x | Open | Open |Open|Open|Open|Open|
+------------------------------------------------------------+
+---------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL) |
|---------------------------------------------------------------|
| CPU |Clock|Multiplier| BF0 | BF1 |BF2 | FS0 | FS1 | FS2 |
|speed |speed| | | | | | | |
|------+-----+----------+------+------+----+------+------+------|
|75MHz |50MHz| 1.5x | Open | Open |Open|Closed|Closed|Closed|
|------+-----+----------+------+------+----+------+------+------|
|90MHz |60MHz| 1.5x | Open | Open |Open|Closed| Open | Open |
|------+-----+----------+------+------+----+------+------+------|
|100MHz|66MHz| 1.5x | Open | Open |Open| Open | Open | Open |
|------+-----+----------+------+------+----+------+------+------|
|120MHz|60MHz| 2x |Closed| Open |Open|Closed| Open | Open |
|------+-----+----------+------+------+----+------+------+------|
|133MHz|66MHz| 2x |Closed| Open |Open| Open | Open | Open |
|------+-----+----------+------+------+----+------+------+------|
|150MHz|60MHz| 2.5x |Closed|Closed|Open|Closed| Open | Open |
|------+-----+----------+------+------+----+------+------+------|
|166MHz|66MHz| 2.5x |Closed|Closed|Open| Open | Open | Open |
|------+-----+----------+------+------+----+------+------+------|
|200MHz|66MHz| 3x | Open |Closed|Open| Open | Open | Open |
+---------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (INTEL MMX) |
|------------------------------------------------------------|
| CPU | Clock |Multiplier| BF0 | BF1 |BF2 |FS0 |FS1 |FS2 |
| speed | speed | | | | | | | |
|-------+-------+----------+------+------+----+----+----+----|
|166MHz | 66MHz | 2.5x |Closed|Closed|Open|Open|Open|Open|
|-------+-------+----------+------+------+----+----+----+----|
|200MHz | 66MHz | 3x | Open |Closed|Open|Open|Open|Open|
|-------+-------+----------+------+------+----+----+----+----|
|233MHz | 66MHz | 3.5x | Open | Open |Open|Open|Open|Open|
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | VC1 | VC2 |
|--------------------+-------------------+-------------------|
| AM K5 | Open | Open |
|--------------------+-------------------+-------------------|
| AM K6 | Closed | Closed |
|--------------------+-------------------+-------------------|
| CX 6X86 | Open | Open |
|--------------------+-------------------+-------------------|
| CX 6X86L | Closed | Closed |
|--------------------+-------------------+-------------------|
| CX 6X86MX | Closed | Closed |
|--------------------+-------------------+-------------------|
| P54C | Open | Open |
|--------------------+-------------------+-------------------|
| P55C | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | VID0 | VID1 | VID2 | VID3 |
|------------+-----------+-----------+-----------+-----------|
| 2.0v | Open | Open | Open | Open |
|------------+-----------+-----------+-----------+-----------|
| 2.1v | Closed | Open | Open | Open |
|------------+-----------+-----------+-----------+-----------|
| 2.2v | Open | Closed | Open | Open |
|------------+-----------+-----------+-----------+-----------|
| 2.3v | Closed | Closed | Open | Open |
|------------+-----------+-----------+-----------+-----------|
| 2.4v | Open | Open | Closed | Open |
|------------+-----------+-----------+-----------+-----------|
| 2.5v | Closed | Open | Closed | Open |
|------------+-----------+-----------+-----------+-----------|
| 2.6v | Open | Closed | Closed | Open |
|------------+-----------+-----------+-----------+-----------|
| 2.7v | Closed | Closed | Closed | Open |
|------------+-----------+-----------+-----------+-----------|
| 2.8v | Open | Open | Open | Closed |
|------------+-----------+-----------+-----------+-----------|
| 2.9v | Closed | Open | Open | Closed |
|------------+-----------+-----------+-----------+-----------|
| 3.0v | Open | Closed | Open | Closed |
|------------+-----------+-----------+-----------+-----------|
| 3.1v | Closed | Closed | Open | Closed |
|------------+-----------+-----------+-----------+-----------|
| 3.2v | Open | Open | Closed | Closed |
|------------+-----------+-----------+-----------+-----------|
| 3.3v | Closed | Open | Closed | Closed |
|------------+-----------+-----------+-----------+-----------|
| 3.4v | Open | Closed | Closed | Closed |
|------------+-----------+-----------+-----------+-----------|
| 3.5v | Closed | Closed | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT SELECTION |
|------------------------------------------------------------|
| Setting | JP15 | JP16 |
|--------------------+-------------------+-------------------|
| Used as serial | Pins 1 & 2 closed | Pins 1 & 2 closed |
| port | | |
|--------------------+-------------------+-------------------|
| Used as IR port | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+