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# CHAINTECH COMPUTER COMPANY, LTD.
5SBA
Processor Pentium
Processor Speed 75/90/100/120/133/150MHz
Chip Set SIS
Maximum Onboard 128MB
Memory
Cache 256/512/1024KB
BIOS Award
Dimensions 330mm x 220mm
I/O Options 32-bit PCI slots (3), floppy drive interface,
game/MIDI port, green PC connector, IDE
interfaces (2), parallel port, serial ports
(2), VESA feature connector, VRM connector,
cache slot, MediaBus slot, IR connector
NPU Options None
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|----------------------+-------+--------------------+--------|
| VRM connector | CN1 | Green PC LED | J18 |
|----------------------+-------+--------------------+--------|
| Floppy drive | J5 | IDE interface LED | J20 |
| interface | | | |
|----------------------+-------+--------------------+--------|
| Parallel port | J6 | Power LED & | J21 |
| | | keylock | |
|----------------------+-------+--------------------+--------|
| IR connector | J7 | Speaker | J22 |
|----------------------+-------+--------------------+--------|
| Digital volume | J8 | Reset switch | J23 |
| control connector | | | |
|----------------------+-------+--------------------+--------|
| Serial port 2 | J9 | Turbo LED | J24 |
|----------------------+-------+--------------------+--------|
| Serial port 1 | J10 | Turbo switch | J25 |
|----------------------+-------+--------------------+--------|
| Game/MIDI port | J11 | Green PC connector | JP14 |
|----------------------+-------+--------------------+--------|
| IDE interface 1 | J13 | 32-bit PCI slots | PC1 - |
| | | | PC3 |
|----------------------+-------+--------------------+--------|
| IDE interface 2 | J14 | Cache slot | SL1 |
|----------------------+-------+--------------------+--------|
| VGA feature | J15 | MediaBus connector | SL2 |
| connector | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|------------------------------------+-------+---------------|
| » | CMOS memory normal operation | JP17 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| | CMOS memory clear | JP17 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| » | Jumper information unavailable | JP23 | N/A |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 2MB | (2) 256K x 36 | None |
|------------------+--------------------+--------------------|
| 2MB | None | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 4MB | (2) 512K x 36 | None |
|------------------+--------------------+--------------------|
| 4MB | (2) 256K x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 6MB | (2) 512K x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 6MB | (2) 256K x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 36 | None |
|------------------+--------------------+--------------------|
| 8MB | (2) 512K x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 10MB | (2) 1M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 10MB | (2) 256K x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 12MB | (2) 1M x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 12MB | (2) 512K x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 36 | None |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 18MB | (2) 2M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 18MB | (2) 256K x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 20MB | (2) 2M x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 20MB | (2) 512K x 36 | (2) 2M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 24MB | (2) 1M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 4M x 36 | None |
|------------------+--------------------+--------------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 34MB | (2) 4M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 34MB | (2) 256K x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 36MB | (2) 4M x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 36MB | (2) 512K x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 1M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 2M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 8M x 36 | None |
|------------------+--------------------+--------------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 66MB | (2) 8M x 36 | (2) 256K x 36 |
|------------------+--------------------+--------------------|
| 66MB | (2) 256K x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 68MB | (2) 8M x 36 | (2) 512K x 36 |
|------------------+--------------------+--------------------|
| 68MB | (2) 512K x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 72MB | (2) 1M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 80MB | (2) 2M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 96MB | (2) 4M x 36 | (2) 8M x 36 |
|------------------+--------------------+--------------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 |
|------------------------------------------------------------|
| Note: Board accepts EDO & FP memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE SIZE |
|------------------------------------------------------------|
| Size | Bank 0 | TAG | SL1 |
|-------------+---------------+--------------+---------------|
| 256KB (A) | (8) 32K x 8 | (1) 8K x 8 | Not installed |
|-------------+---------------+--------------+---------------|
| 256KB (B) | None | None | Installed |
|-------------+---------------+--------------+---------------|
| 512KB (A) | (8) 64K x 8 | (1) 32K x 8 | Not installed |
|-------------+---------------+--------------+---------------|
| 512KB (B) | None | None | Installed |
|-------------+---------------+--------------+---------------|
| 1MB | (8) 128K x 8 | (1) 32K x 8 | Not installed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER |
|------------------------------------------------------------|
| Size | JP15 | JP16 |
|------------------+--------------------+--------------------|
| 256KB (A) | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 512KB (A) | Pins 1 & 2 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 1MB | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE VOLTAGE |
|------------------------------------------------------------|
| Setting | JP27 |
|----------------------------+-------------------------------|
| Mixed voltage | Pins 1 & 2, 3 & 4 closed |
|----------------------------+-------------------------------|
| 3.3v | Pins 5 & 6, 7 & 8 closed |
|------------------------------------------------------------|
| Note: The location of pin 1 is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE TYPE |
|------------------------------------------------------------|
| Setting | JP20 |
|----------------------------+-------------------------------|
| Asynchronous | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| Pipeline burst | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED |
|------------------------------------------------------------|
| Setting | JP9 | JP26 |
|--------------+-------------------------+-------------------|
| 75MHz | Pins 1 & 2, 3 & 4 | Pins 1 & 2 closed |
| | closed | |
|--------------+-------------------------+-------------------|
| 90MHz (3.3v) | Pins 3 & 4 closed | Pins 1 & 2 closed |
|--------------+-------------------------+-------------------|
| 90MHz (3.4v) | Pins 3 & 4 closed | Pins 3 & 4 closed |
|--------------+-------------------------+-------------------|
| 90MHz (3.5v) | Pins 3 & 4 closed | Pins 5 & 6 closed |
|--------------+-------------------------+-------------------|
| 100MHz | Pins 3 & 4 closed | Pins 5 & 6 closed |
|--------------+-------------------------+-------------------|
| 120MHz | Pins 3 & 4 closed | Pins 5 & 6 closed |
|--------------+-------------------------+-------------------|
| 133MHz | Open | Pins 5 & 6 closed |
|--------------+-------------------------+-------------------|
| 150MHz | Pins 3 & 4 closed | Pins 5 & 6 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU MULTIPLIER |
|------------------------------------------------------------|
| Setting | JP24 | JP25 |
|--------------------+--------------------+------------------|
| 1.5x | Pins 1 & 2 closed | Open |
|--------------------+--------------------+------------------|
| 2x | Pins 2 & 3 closed | Open |
|--------------------+--------------------+------------------|
| 2.5x | Pins 2 & 3 closed | Closed |
|--------------------+--------------------+------------------|
| 3x | Pins 1 & 2 closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE |
|------------------------------------------------------------|
| Setting | CN1 |
|----------------------------+-------------------------------|
| » | Normal CPU | Pins 6 & 7, 21 & 22 closed |
|---+------------------------+-------------------------------|
| | High frequency CPU | VRM installed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ON BOARD VIDEO |
|------------------------------------------------------------|
| Setting | JP7 | JP8 |
|--------------------+-------------------+-------------------|
| Enabled | Closed | Closed |
|--------------------+-------------------+-------------------|
| Disabled | Open | Open |
+------------------------------------------------------------+