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# TYAN COMPUTER CORPORATION
S1461
Processor Pentium
Processor Speed 75/90/100/120/133MHz
Chip Set Unidentified
Max. Onboard DRAM 128MB
Cache 256/512KB
BIOS AMI/Award
Dimensions 254mm x 218mm
I/O Options 32-bit PCI slots (4), IDE interfaces (2)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------------+----------+-------------+----------|
| IDE interface | CN1 | Turbo LED | J23 |
| (primary) | | | |
|------------------------+----------+-------------+----------|
| IDE | CN2 | Power LED & | J26 |
| interface(secondary) | | keylock | |
|------------------------+----------+-------------+----------|
| Turbo switch | J17 | Speaker | J27 |
|------------------------+----------+-------------+----------|
| Reset switch | J18 | 32-bit PCI | PC1 - |
| | | slots | PC4 |
|------------------------+----------+-------------+----------|
| IDE interface LED | J19 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Factory configured - do not | J7 | pins 2 & 3 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J8 | pins 1 & 2 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J9 | pins 1 & 2 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J10 | Closed |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | J11 | Open |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | J11 | Closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J14 | pins 2 & 3 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J24 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J25 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J28 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J29 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J30 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J31 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J32 | Closed |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 4MB | (2) 512K x 36 | NONE |
|------------------+--------------------+--------------------|
| 8MB | (2) 512K x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 36 | NONE |
|------------------+--------------------+--------------------|
| 12MB | (2) 1M x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 36 | NONE |
|------------------+--------------------+--------------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 4M x 36 | NONE |
|------------------+--------------------+--------------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 8M x 36 | NONE |
|------------------+--------------------+--------------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 512KB | (4) 64K x 8 | (4) 64K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J6 | J21 | J22 |
|------------+-------------------+-------------+-------------|
| 256KB | pins 2 & 3 closed | Open | Closed |
|------------+-------------------+-------------+-------------|
| 512KB | pins 1 & 2 closed | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | J15 | J16 | J20 |
|---------------+--------------+--------------+--------------|
| 75MHz | Closed | Closed | Open |
|---------------+--------------+--------------+--------------|
| 90MHz | Open | Closed | Open |
|---------------+--------------+--------------+--------------|
| 100MHz | Closed | Open | Open |
|---------------+--------------+--------------+--------------|
| 120MHz | Open | Closed | Closed |
|---------------+--------------+--------------+--------------|
| 133MHz | Closed | Open | Closed |
+------------------------------------------------------------+