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# SOYO COMPUTER CO., LTD.
SY-5SM2/M5
Processor CX M1/Pentium
Processor Speed 75/90/100/120/133/150/166/180/200MHz
Chip Set SIS
Maximum Onboard 256MB
Memory
Cache 256/512KB
BIOS Award
Dimensions 330mm x 220mm
I/O Options 32-bit PCI slots (3), green PC connector,
floppy drive interface, IDE interfaces (2),
parallel port, PS/2 mouse interface, serial
ports (2), VGA feature connector, VGA
interface, cache slot, audio connector, wave
table connector, VRM connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|----------------------+-------+--------------------+--------|
| Serial port 2 | CN1 | Speaker | J18 |
|----------------------+-------+--------------------+--------|
| Serial port 1 | CN2 | Reset switch | J19 |
|----------------------+-------+--------------------+--------|
| Floppy drive | CN3 | External battery | J20 |
| interface | | | |
|----------------------+-------+--------------------+--------|
| Parallel port | CN4 | Turbo LED | J22 |
|----------------------+-------+--------------------+--------|
| IDE interface 2 | CN5 | Green PC connector | JP25 |
|----------------------+-------+--------------------+--------|
| IDE interface 1 | CN6 | VRM connector | JP46 |
|----------------------+-------+--------------------+--------|
| VGA interface | CN7 | Wave table | JP52 |
| | | connector | |
|----------------------+-------+--------------------+--------|
| VGA feature | CN8 | IDE interface LED | LED1 |
| connector | | 1 | |
|----------------------+-------+--------------------+--------|
| Audio connector | CN9 | IDE interface LED | LED2 |
| | | 2 | |
|----------------------+-------+--------------------+--------|
| PS/2 mouse interface | J1 | 32-bit PCI slots | PC1 - |
| | | | PC3 |
|----------------------+-------+--------------------+--------|
| Power LED & keylock | J17 | Cache slot | SL1 |
|------------------------------------------------------------|
| Note: CN7, CN8 and JP46 are optional and may not be |
| present. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|-------------------------------------+-------+--------------|
| » | Factory configured - do not | J21 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Monitor type select color | JP3 | Closed |
|---+---------------------------------+-------+--------------|
| | Monitor type select monochrome | JP3 | Open |
|---+---------------------------------+-------+--------------|
| » | CMOS memory normal operation | JP5 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | CMOS memory clear | JP5 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP28 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP29 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP30 | Pins 3 & 5, |
| | alter | | 4 & 6 closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP31 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP32 | Pins 2 & 3 |
| | alter | | closed |
|---+---------------------------------+-------+--------------|
| » | Pipeline mode enabled | JP33 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Pipeline mode disabled | JP33 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Cache type select write back | JP34 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Cache type select write through | JP34 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP36 | Closed |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP37 | Closed |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP47 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP48 | Pins 1 & 2 |
| | alter | | closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP50 | Closed |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP51 | Closed |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP53 | Closed |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | PS/2 mouse disabled | JPS2 | Open |
|---+---------------------------------+-------+--------------|
| | PS/2 mouse enabled | JPS2 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 2MB | None | (1) 512K x | None | None |
| | | 32 | | |
|-------+-------------+------------+------------+------------|
| 2MB | None | None | None | (1) 512K x |
| | | | | 32 |
|-------+-------------+------------+------------+------------|
| 2MB | (1) 256K x | (1) 256K x | None | None |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 4MB | None | (1) 1M x | None | None |
| | | 32 | | |
|-------+-------------+------------+------------+------------|
| 4MB | None | None | None | (1) 1M x |
| | | | | 32 |
|-------+-------------+------------+------------+------------|
| 4MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 4MB | (1) 512K x | (1) 512K x | None | None |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 6MB | (1) 512K x | (1) 512K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 6MB | (1) 256K x | (1) 256K x | (1) 512K x | (1) 512K x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 8MB | None | (1) 2M x | None | None |
| | | 32 | | |
|-------+-------------+------------+------------+------------|
| 8MB | None | None | None | (1) 2M x |
| | | | | 32 |
|-------+-------------+------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 8MB | (1) 512K x | (1) 512K x | (1) 512K x | (1) 512K x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 10MB | (1) 1M x 36 | (1) 1M x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 10MB | (1) 256K x | (1) 256K x | (1) 1M x | (1) 1M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 1M x | (1) 512K x | (1) 512K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 12MB | (1) 512K x | (1) 512K x | (1) 1M x | (1) 1M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 16MB | None | (1) 4M x | None | None |
| | | 32 | | |
|-------+-------------+------------+------------+------------|
| 16MB | None | None | None | (1) 4M x |
| | | | | 32 |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 2M x 36 | (1) 2M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 18MB | (1) 2M x 36 | (1) 2M x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 18MB | (1) 256K x | (1) 256K x | (1) 2M x | (1) 2M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 20MB | (1) 2M x 36 | (1) 2M x | (1) 512K x | (1) 512K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 20MB | (1) 512K x | (1) 512K x | (1) 2M x | (1) 2M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 24MB | (1) 2M x 36 | (1) 2M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 24MB | (1) 1M x 36 | (1) 1M x | (1) 2M x | (1) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 2M x 36 | (1) 2M x | (1) 2M x | (1) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 34MB | (1) 4M x 36 | (1) 4M x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 34MB | (1) 256K x | (1) 256K x | (1) 4M x | (1) 4M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 36MB | (1) 4M x 36 | (1) 4M x | (1) 512K x | (1) 512K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 36MB | (1) 512K x | (1) 512K x | (1) 4M x | (1) 4M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 4M x 36 | (1) 4M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 1M x 36 | (1) 1M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 4M x | (1) 2M x | (1) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 2M x 36 | (1) 2M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 64MB | None | (1) 16M x | None | None |
| | | 32 | | |
|-------+-------------+------------+------------+------------|
| 64MB | None | None | None | (1) 16M x |
| | | | | 32 |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 16M x | (1) 16M x | None | None |
| | 36 | 36 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|---------+-------------+------------+-----------+-----------|
| 130MB | (1) 16M x | (1) 16M x | (1) 256K | (1) 256K |
| | 36 | 36 | x 36 | x 36 |
|---------+-------------+------------+-----------+-----------|
| 130MB | (1) 256K x | (1) 256K x | (1) 16M x | (1) 16M x |
| | 36 | 36 | 36 | 36 |
|---------+-------------+------------+-----------+-----------|
| 132MB | (1) 16M x | (1) 16M x | (1) 512K | (1) 512K |
| | 36 | 36 | x 36 | x 36 |
|---------+-------------+------------+-----------+-----------|
| 132MB | (1) 512K x | (1) 512K x | (1) 16M x | (1) 16M x |
| | 36 | 36 | 36 | 36 |
|---------+-------------+------------+-----------+-----------|
| 136MB | (1) 16M x | (1) 16M x | (1) 1M x | (1) 1M x |
| | 36 | 36 | 36 | 36 |
|---------+-------------+------------+-----------+-----------|
| 136MB | (1) 1M x 36 | (1) 1M x | (1) 16M x | (1) 16M x |
| | | 36 | 36 | 36 |
|---------+-------------+------------+-----------+-----------|
| 144MB | (1) 16M x | (1) 16M x | (1) 2M x | (1) 2M x |
| | 36 | 36 | 36 | 36 |
|---------+-------------+------------+-----------+-----------|
| 144MB | (1) 2M x 36 | (1) 2M x | (1) 16M x | (1) 16M x |
| | | 36 | 36 | 36 |
|---------+-------------+------------+-----------+-----------|
| 160MB | (1) 16M x | (1) 16M x | (1) 4M x | (1) 4M x |
| | 36 | 36 | 36 | 36 |
|---------+-------------+------------+-----------+-----------|
| 160MB | (1) 4M x 36 | (1) 4M x | (1) 16M x | (1) 16M x |
| | | 36 | 36 | 36 |
|---------+-------------+------------+-----------+-----------|
| 256MB | (1) 16M x | (1) 16M x | (1) 16M x | (1) 16M x |
| | 36 | 36 | 36 | 36 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. Board also accepts X |
| 32 SIMMs. If only Bank 1 or Bank 3 is populated, x 32 |
| SIMMs must be used. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE SIZE |
|------------------------------------------------------------|
| Size | Bank 0 | TAG | SL1 |
|----------+---------------+-----------------+---------------|
| 256KB | (2) 32K x 32 | (1) 8K/16K x 8 | Not installed |
|----------+---------------+-----------------+---------------|
| 512KB | (2) 32K x 32 | (1) 16K/32K x 8 | Installed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER |
|------------------------------------------------------------|
| Size | JP26 | JP27 |
|------------------+--------------------+--------------------|
| 256KB | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 512KB | Pins 2 & 3 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU BURST MODE TYPE |
|------------------------------------------------------------|
| Setting | JP40 |
|-------------------------------+----------------------------|
| Cyrix (linear burst) | Pins 2 & 3 closed |
|-------------------------------+----------------------------|
| Intel (interleave burst) | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED (CYRIX) |
|------------------------------------------------------------|
| Setting | Multiplier | JP23 | JP24 | JP38 | JP42 |
|---------+------------+--------+--------+------------+------|
| 120MHz | 2x | Closed | Closed | Pins 2 & 3 | Open |
| | | | | closed | |
|---------+------------+--------+--------+------------+------|
| 150MHz | 2x | Closed | Open | Pins 2 & 3 | Open |
| | | | | closed | |
|---------+------------+--------+--------+------------+------|
| 166MHz | 2x | Open | Closed | Pins 2 & 3 | Open |
| | | | | closed | |
|---------+------------+--------+--------+------------+------|
| 200MHz | 3x | Closed | Closed | Pins 1 & 2 | Open |
| | | | | closed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED (INTEL) |
|------------------------------------------------------------|
| Setting | Multiplier | JP23 | JP24 | JP38 | JP42 |
|---------+------------+--------+--------+----------+--------|
| 75MHz | 1.5x | Closed | Closed | Pins 1 & | Open |
| | | | | 2 closed | |
|---------+------------+--------+--------+----------+--------|
| 90MHz | 1.5x | Closed | Open | Pins 1 & | Open |
| | | | | 2 closed | |
|---------+------------+--------+--------+----------+--------|
| 100MHz | 1.5x | Open | Closed | Pins 1 & | Open |
| | | | | 2 closed | |
|---------+------------+--------+--------+----------+--------|
| 100MHz | 2x | Closed | Closed | Pins 2 & | Open |
| | | | | 3 closed | |
|---------+------------+--------+--------+----------+--------|
| 120MHz | 2x | Closed | Open | Pins 2 & | Open |
| | | | | 3 closed | |
|---------+------------+--------+--------+----------+--------|
| 133MHz | 2x | Open | Closed | Pins 2 & | Open |
| | | | | 3 closed | |
|---------+------------+--------+--------+----------+--------|
| 150MHz | 2.5x | Closed | Open | Pins 2 & | Closed |
| | | | | 3 closed | |
|---------+------------+--------+--------+----------+--------|
| 166MHz | 2.5x | Open | Closed | Pins 2 & | Closed |
| | | | | 3 closed | |
|---------+------------+--------+--------+----------+--------|
| 180MHz | 3x | Closed | Closed | Pins 1 & | Closed |
| | | | | 2 closed | |
|---------+------------+--------+--------+----------+--------|
| 200MHz | 3x | Open | Closed | Pins 1 & | Closed |
| | | | | 2 closed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE |
|------------------------------------------------------------|
| Setting | JP43 | JP44 | JP45 |
|---------------+---------------+---------------+------------|
| 3.3v | Closed | Open | Open |
|---------------+---------------+---------------+------------|
| 3.45v - 3.6v | Open | Closed | Open |
+------------------------------------------------------------+