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# CHAINTECH COMPUTER COMPANY, LTD.
4SLD.3
Processor 80486SX/SL80486SX/80486SX2/CX486DX/UMCU5/80486DX/SL80486DX/
CX486DX2/80486DX2/SL80486DX2/P24D/80486DX4
Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/100(internal)MHz
Speed
Chip Set SIS
Max. 64MB
Onboard
DRAM
Cache 128/256KB
BIOS Award
Dimensions 250mm x 220mm
I/O 32-bit VESA local bus slots (3), green PC connector
Options
NPU None
Options
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------+----------+----------------------+----------|
| Green PC LED | D1 | Turbo switch | J5 |
|---------------+----------+----------------------+----------|
| Speaker | J1 | Green PC connector | J6 |
|---------------+----------+----------------------+----------|
| Power LED & | J2 | External battery | J7 |
| keylock | | | |
|---------------+----------+----------------------+----------|
| Reset switch | J3 | Green PC connector | JP17 |
|---------------+----------+----------------------+----------|
| Turbo LED | J4 | 32-bit VESA local | SL1 - |
| | | bus slots | SL3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|----------------------------------+--------+----------------|
| » | CMOS memory normal operation | JP22 | pins 1 & 2 |
| | | | closed |
|---+------------------------------+--------+----------------|
| | CMOS memory clear | JP22 | pins 2 & 3 |
| | | | closed |
|---+------------------------------+--------+----------------|
| » | CPU type select Cyrix | JP25 | Open |
|---+------------------------------+--------+----------------|
| | CPU type select AM486DX2 | JP25 | Closed |
|---+------------------------------+--------+----------------|
| | CPU type select AM486DX4 | JP25 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 1MB | (1) 256K x | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 256K x | (1) 256K x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 512K x | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 1M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 256K x | (1) 1M x 36 | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 256K x | (1) 256K x | (1) 1M x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 512K x | NONE | (1) 1M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 2M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 256K x | (1) 256K x | (1) 1M x | (1) 1M x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 256K x | (1) 256K x | (1) 2M x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 512K x | NONE | (1) 2M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 2M x 36 | NONE | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | NONE | (1) 2M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | NONE | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 1M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 2M x 36 | NONE | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 8M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 36MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 36MB | (1) 1M x 36 | (1) 8M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 1M x 36 | (1) 1M x 36 | (1) 8M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 2M x 36 | NONE | (1) 8M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 2M x 36 | NONE | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 8M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 8M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 8M x 36 | NONE | (1) 8M x | NONE |
| | | | 36 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|-------+-------------+-------------+------------------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
|-------+-------------+-------------+------------------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 16K or (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE RESISTOR CONFIGURATION |
|------------------------------------------------------------|
| Size | RP12 | RP13 |
|------------------+--------------------+--------------------|
| 128KB | Installed | Not installed |
|------------------+--------------------+--------------------|
| 256KB | Not installed | Installed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP9 | JP10 | JP16 | JP20 | JP21 |
|-------------+---------+---------+---------+--------+-------|
| 80486SX | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 |
|-------------+---------+---------+---------+--------+-------|
| SL80486SX | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 |
|-------------+---------+---------+---------+--------+-------|
| 80486SX2 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 |
|-------------+---------+---------+---------+--------+-------|
| SL80486SX2 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 |
|-------------+---------+---------+---------+--------+-------|
| ODP486SX | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 |
|-------------+---------+---------+---------+--------+-------|
| UMC U5 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 |
|-------------+---------+---------+---------+--------+-------|
| CX486DX | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
|-------------+---------+---------+---------+--------+-------|
| 80486DX | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 |
|-------------+---------+---------+---------+--------+-------|
| SL80486DX | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 |
|-------------+---------+---------+---------+--------+-------|
| CX486DX2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
|-------------+---------+---------+---------+--------+-------|
| P24D | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 |
|-------------+---------+---------+---------+--------+-------|
| 80486DX2 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 |
|-------------+---------+---------+---------+--------+-------|
| SL80486DX2 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 |
|-------------+---------+---------+---------+--------+-------|
| 80486DX4 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+----------------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|----------------------------------------------------------------------|
| Type | RP5 | RP6 | RP7 | RP8 | RP9 | RP10 |
|----------+---------+---------+---------+---------+---------+---------|
| 80486SX |Installed| Not | Not |Installed| Not | Not |
| | |installed|installed| |installed|installed|
|----------+---------+---------+---------+---------+---------+---------|
|SL80486SX |Installed| Not | Not |Installed| Not | Not |
| | |installed|installed| |installed|installed|
|----------+---------+---------+---------+---------+---------+---------|
| 80486SX2 |Installed| Not | Not |Installed| Not | Not |
| | |installed|installed| |installed|installed|
|----------+---------+---------+---------+---------+---------+---------|
|SL80486SX2|Installed| Not | Not |Installed| Not | Not |
| | |installed|installed| |installed|installed|
|----------+---------+---------+---------+---------+---------+---------|
| ODP486SX | Not |Installed| Not |Installed| Not | Not |
| |installed| |installed| |installed|installed|
|----------+---------+---------+---------+---------+---------+---------|
| UMC U5 |Installed| Not | Not |Installed| Not | Not |
| | |installed|installed| |installed|installed|
|----------+---------+---------+---------+---------+---------+---------|
| CX486DX | Not |Installed| Not | Not |Installed| Not |
| |installed| |installed|installed| |installed|
|----------+---------+---------+---------+---------+---------+---------|
| 80486DX | Not |Installed| Not |Installed| Not | Not |
| |installed| |installed| |installed|installed|
|----------+---------+---------+---------+---------+---------+---------|
|SL80486DX | Not |Installed| Not |Installed| Not | Not |
| |installed| |installed| |installed|installed|
|----------+---------+---------+---------+---------+---------+---------|
| CX486DX2 | Not |Installed| Not | Not |Installed| Not |
| |installed| |installed|installed| |installed|
|----------+---------+---------+---------+---------+---------+---------|
| P24D | Not | Not |Installed| Not | Not |Installed|
| |installed|installed| |installed|installed| |
|----------+---------+---------+---------+---------+---------+---------|
| 80486DX2 | Not |Installed| Not |Installed| Not | Not |
| |installed| |installed| |installed|installed|
|----------+---------+---------+---------+---------+---------+---------|
|SL80486DX2| Not |Installed| Not |Installed| Not | Not |
| |installed| |installed| |installed|installed|
|----------+---------+---------+---------+---------+---------+---------|
| 80486DX4 | Not |Installed| Not |Installed| Not | Not |
| |installed| |installed| |installed|installed|
+----------------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION (MX8315) |
|------------------------------------------------------------|
| Speed | JP11 | JP12 | JP13 |
|---------------+--------------+--------------+--------------|
| 25MHz | Open | Closed | Open |
|---------------+--------------+--------------+--------------|
| 33MHz | Closed | Closed | Closed |
|---------------+--------------+--------------+--------------|
| 40MHz | Open | Closed | Closed |
|---------------+--------------+--------------+--------------|
| 50iMHz | Open | Closed | Open |
|---------------+--------------+--------------+--------------|
| 50MHz | Closed | Open | Open |
|---------------+--------------+--------------+--------------|
| 66iMHz | Closed | Closed | Closed |
|---------------+--------------+--------------+--------------|
| 75iMHz | Open | Closed | Open |
|---------------+--------------+--------------+--------------|
| 80iMHz | Open | Closed | Closed |
|---------------+--------------+--------------+--------------|
| 100iMHz | Closed | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION (MXIMISC466) |
|------------------------------------------------------------|
| Speed | JP11 | JP12 | JP13 |
|---------------+---------------+-------------+--------------|
| 25MHz | Open | Open | Open |
|---------------+---------------+-------------+--------------|
| 33MHz | Closed | Open | Closed |
|---------------+---------------+-------------+--------------|
| 40MHz | Open | Open | Closed |
|---------------+---------------+-------------+--------------|
| 50iMHz | Open | Open | Open |
|---------------+---------------+-------------+--------------|
| 50MHz | Closed | Open | Open |
|---------------+---------------+-------------+--------------|
| 66iMHz | Closed | Open | Closed |
|---------------+---------------+-------------+--------------|
| 75iMHz | Open | Open | Open |
|---------------+---------------+-------------+--------------|
| 100iMHz | Closed | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION (80486DX4 ONLY) |
|------------------------------------------------------------|
| Speed | JP15 |
|----------------------------+-------------------------------|
| Cyrix | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 2x | pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 3x | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JP1 | JP2 | JP3 | JP6 |
|----------+---------+---------+---------+-------------------|
| 3v | Open | Open | Open | pins 1 & 2 closed |
|----------+---------+---------+---------+-------------------|
| 4v | Closed | Open | Open | pins 2 & 3 closed |
|----------+---------+---------+---------+-------------------|
| 5v | Closed | Closed | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VESA WAIT STATE CONFIGURATION |
|------------------------------------------------------------|
| Wait states | JP4 |
|----------------------------+-------------------------------|
| 0 wait states | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 1 wait state | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BUS SPEED CONFIGURATION |
|------------------------------------------------------------|
| CPU speed | JP5 |
|----------------------------+-------------------------------|
| <= 33MHz | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| > 33MHz | pins 2 & 3 closed |
+------------------------------------------------------------+