(TXT) View Source
# UNIDENTIFIED
SIS 486-471 VL BUS 5/3.3V
Processor CX486S/80486SX/CX486DX/80486DX/80486DX2/80486DX4/Pentium
Overdrive
Processor 20/25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set SIS
Max. 128MB
Onboard
DRAM
Cache 64/128/256/512KB
BIOS AMI
Dimensions 254mm 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 |
|-------------------+----------+------------------+----------|
| External battery | J1 | Reset switch | J6 |
|-------------------+----------+------------------+----------|
| Green PC | J2 | Power LED & | J7 |
| connector | | keylock | |
|-------------------+----------+------------------+----------|
| Turbo switch | J3 | Break switch | JP26 |
| | | connector | |
|-------------------+----------+------------------+----------|
| Turbo LED | J4 | 32-bit VESA | SL1 - |
| | | local bus slots | SL3 |
|-------------------+----------+------------------+----------|
| Speaker | J5 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Turbo switch enabled | J3 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Turbo switch disabled | J3 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Use for break switch | J3 | pins 4 & 5 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | JP16 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP16 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Monitor type select | JP17 | Open |
| | VGA/EGA/monochrome | | |
|---+----------------------------------+--------+------------|
| | Monitor type select CGA | JP17 | Closed |
|---+----------------------------------+--------+------------|
| » | CX486S2 CPU not installed | JP18 | Open |
|---+----------------------------------+--------+------------|
| | CX486S2 CPU installed | JP18 | Closed |
|---+----------------------------------+--------+------------|
| » | RC pin for break switch | JP19 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | RC pin for RC | JP19 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP20 | pins 2 & 3 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP23 | pins 1 & 2 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | J3 set with pins open | JP27 | Closed |
|---+----------------------------------+--------+------------|
| | J3 set with pins 4 & 5 closed | JP27 | Open |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP43 | pins 1 & 2 |
| | alter | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (TABLE 1) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 1MB | (4) 256K x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 2MB | (4) 256K x 9 | (1) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 4MB | (4) 1M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 5MB | (4) 256K x 9 | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 6MB | (4) 256K x 9 | (1) 256K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 8MB | (4) 1M x 9 | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 12MB | (4) 1M x 9 | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 16MB | (4) 4M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 17MB | (4) 256K x 9 | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 18MB | (4) 256K x 9 | (1) 256K x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 20MB | (4) 1M x 9 | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 24MB | (4) 1M x 9 | (1) 1M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | (4) 4M x 9 | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 34MB | (4) 256K x 9 | (1) 256K x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 36MB | (4) 1M x 9 | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 48MB | (4) 4M x 9 | (1) 8M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 48MB | (4) 4M x 9 | (1) 8M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 52MB | (4) 1M x 9 | (1) 4M x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 64MB | (4) 4M x 9 | (1) 4M x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 64MB | (4) 16M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 68MB | (4) 1M x 9 | (1) 8M x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 80MB | (4) 4M x 9 | (1) 8M x 36 | (1) 8M x 36 |
|------------+---------------+---------------+---------------|
| 96MB | (4) 16M x 9 | (1) 8M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 128MB | (4) 16M x 9 | (1) 8M x 36 | (1) 8M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (TABLE 2) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 1MB | (1) 256K x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 2MB | (1) 256K x 36 | (1) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 4MB | (1) 1M x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 5MB | (1) 256K x 36 | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 6MB | (1) 256K x 36 | (1) 256K x 36 | (4) 1M x 9 |
|------------+---------------+---------------+---------------|
| 8MB | (1) 2M x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (4) 1M x 9 |
|------------+---------------+---------------+---------------|
| 16MB | (1) 2M x 36 | (1) 2M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 16MB | (1) 4M x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 17MB | (1) 256K x 36 | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 18MB | (1) 256K x 36 | (1) 256K x 36 | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 20MB | (1) 1M x 36 | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 24MB | (1) 1M x 36 | (1) 1M x 36 | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 32MB | (1) 8M x 36 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 36MB | (1) 1M x 36 | (1) 4M x 36 | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 36MB | (1) 1M x 36 | (1) 8M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 48MB | (1) 4M x 36 | (1) 4M x 36 | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 48MB | (1) 4M x 36 | (1) 8M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 64MB | (1) 8M x 36 | (1) 8M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 72MB | (1) 1M x 36 | (1) 1M x 36 | (4) 16M x 9 |
|------------+---------------+---------------+---------------|
| 96MB | (1) 4M x 36 | (1) 4M x 36 | (4) 16M x 9 |
|------------+---------------+---------------+---------------|
| 128MB | (1) 8M x 36 | (1) 8M x 36 | (4) 16M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Configuration | JP36 | JP37 |
|------------------+--------------------+--------------------|
| Table 1 | pins 1 & 2 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| Table 2 | pins 2 & 3 closed | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 4K x 8 |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 16K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 512KB | (4) 128K x 8 | NONE | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP1 | JP2 | JP3 | JP4 | JP33 | JP34 | JP35 |
|-------+------+------+------+-------+-------+------+--------|
| 64KB | 2 & | 1 & | 2 & | 1 & 2 | 1 & 2 | 1 & | Open |
| | 3 | 2 | 3, 4 | | | 2 | |
| | | | & 5 | | | | |
|-------+------+------+------+-------+-------+------+--------|
| 128KB | 1 & | 1 & | 1 & | 1 & 2 | 2 & 3 | 2 & | Open |
| | 2 | 2 | 2, 3 | | | 3 | |
| | | | & 4 | | | | |
|-------+------+------+------+-------+-------+------+--------|
| 256KB | 2 & | Open | 2 & | Open | 2 & 3 | 2 & | Closed |
| | 3 | | 3, 4 | | | 3 | |
| | | | & 5 | | | | |
|-------+------+------+------+-------+-------+------+--------|
| 256KB | 2 & | 2 & | 2 & | 1 & 2 | 2 & 3 | 2 & | Open |
| | 3 | 3 | 3, 4 | | | 3 | |
| | | | & 5 | | | | |
|-------+------+------+------+-------+-------+------+--------|
| 512KB | 1 & | 2 & | 1 & | 2 & 3 | 2 & 3 | 2 & | Open |
| | 2 | 3 | 2, 3 | | | 3 | |
| | | | & 4 | | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP30 | JP31 |
|--------------------+-------------------+-------------------|
| P24D | Closed | Closed |
|--------------------+-------------------+-------------------|
| All other CPU | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP8 | JP9 | JP10 | JP11 | JP12 |
|-----------+--------+--------+-------+-------+--------------|
| CX486SX | 2 & 3 | Closed | 2 & 3 | Open | 2 & 3, 4 & 5 |
|-----------+--------+--------+-------+-------+--------------|
| 80486SX | 2 & 3 | Open | 2 & 3 | Open | Open |
|-----------+--------+--------+-------+-------+--------------|
| SLE486SX | 2 & 3 | Open | 2 & 3 | Open | 3 & 4 |
|-----------+--------+--------+-------+-------+--------------|
| CX486DX | 1 & 2 | Closed | 2 & 3 | 3 & 4 | 2 & 3 |
|-----------+--------+--------+-------+-------+--------------|
| SLE486DX | 1 & 2 | Closed | 2 & 3 | 3 & 4 | 3 & 4 |
|-----------+--------+--------+-------+-------+--------------|
| 80486DX | 1 & 2 | Closed | 2 & 3 | 3 & 4 | Open |
|-----------+--------+--------+-------+-------+--------------|
| SLE486DX2 | 1 & 2 | Closed | 2 & 3 | 3 & 4 | 3 & 4 |
|-----------+--------+--------+-------+-------+--------------|
| 80486DX4 | 1 & 2 | Closed | 2 & 3 | 3 & 4 | 3 & 4 |
|-----------+--------+--------+-------+-------+--------------|
| P24D | 1 & 2 | Closed | 1 & 2 | 3 & 4 | 1 & 2, 3 & 4 |
|-----------+--------+--------+-------+-------+--------------|
| P24T | 1 & 2 | Closed | 1 & 2 | 2 & 3 | 3 & 4 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP13 | JP14 | JP15 | JP21 | JP22 |
|-----------+--------+--------------+--------+-------+-------|
| CX486SX | Open | 1 & 2, 3 & 4 | 2 & 3 | 1 & 2 | 2 & 3 |
|-----------+--------+--------------+--------+-------+-------|
| 80486SX | Open | Open | Open | 2 & 3 | 1 & 2 |
|-----------+--------+--------------+--------+-------+-------|
| SLE486SX | 1 & 2 | 2 & 3 | 4 & 5 | 2 & 3 | 1 & 2 |
|-----------+--------+--------------+--------+-------+-------|
| CX486DX | Open | 1 & 2, 3 & 4 | 2 & 3 | 1 & 2 | 2 & 3 |
|-----------+--------+--------------+--------+-------+-------|
| SLE486DX | 1 & 2 | 2 & 3 | 4 & 5 | 2 & 3 | 1 & 2 |
|-----------+--------+--------------+--------+-------+-------|
| 80486DX | Open | Open | Open | 2 & 3 | 1 & 2 |
|-----------+--------+--------------+--------+-------+-------|
| SLE486DX2 | 1 & 2 | 2 & 3 | 4 & 5 | 2 & 3 | 1 & 2 |
|-----------+--------+--------------+--------+-------+-------|
| 80486DX4 | 1 & 2 | 2 & 3 | 4 & 5 | 2 & 3 | 1 & 2 |
|-----------+--------+--------------+--------+-------+-------|
| P24D | 2 & 3 | 2 & 3 | 4 & 5 | 2 & 3 | 1 & 2 |
|-----------+--------+--------------+--------+-------+-------|
| P24T | Open | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP24 | JP25 | JP32 | JP41 | JP42 |
|-----------+--------+-------+-------+--------------+--------|
| CX486SX | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3, 5 & 6 | Closed |
|-----------+--------+-------+-------+--------------+--------|
| 80486SX | Open | Open | 1 & 2 | 2 & 3, 5 & 6 | Closed |
|-----------+--------+-------+-------+--------------+--------|
| SLE486SX | Open | Open | 2 & 3 | 2 & 3, 5 & 6 | Closed |
|-----------+--------+-------+-------+--------------+--------|
| CX486DX | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3, 5 & 6 | Closed |
|-----------+--------+-------+-------+--------------+--------|
| SLE486DX | Open | Open | 2 & 3 | 2 & 3, 5 & 6 | Closed |
|-----------+--------+-------+-------+--------------+--------|
| 80486DX | Open | Open | 1 & 2 | 2 & 3, 5 & 6 | Closed |
|-----------+--------+-------+-------+--------------+--------|
| SLE486DX2 | Open | Open | 2 & 3 | 2 & 3, 5 & 6 | Closed |
|-----------+--------+-------+-------+--------------+--------|
| 80486DX4 | Open | Open | 2 & 3 | 1 & 2, 4 & 5 | Open |
|-----------+--------+-------+-------+--------------+--------|
| P24D | Open | 1 & 2 | 2 & 3 | 2 & 3, 5 & 6 | Closed |
|-----------+--------+-------+-------+--------------+--------|
| P24T | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3, 5 & 6 | Closed |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JP41 |
|---------------------+--------------------------------------|
| 3.3v | pins 1 & 2, 4 & 5 closed |
|---------------------+--------------------------------------|
| 5.0v (DX4) | pins 2 & 3, 5 & 6 closed |
|------------------------------------------------------------|
| Note: If Q4, Q5, and Q6 are installed or Q6 only |
| installed, set JP41 with pins 1 & 2, 4 & 5 closed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION (U16-AVASEM/AV9107-03/KTS0147C) |
|------------------------------------------------------------|
| Speed | JP5 | JP6 | JP7 |
|---------------+---------------+--------------+-------------|
| 20MHz | Closed | Open | Closed |
|---------------+---------------+--------------+-------------|
| 25MHz | Closed | Closed | Open |
|---------------+---------------+--------------+-------------|
| 33MHz | Open | Closed | Closed |
|---------------+---------------+--------------+-------------|
| 40MHz | Closed | Open | Open |
|---------------+---------------+--------------+-------------|
| 50iMHz | Closed | Closed | Open |
|---------------+---------------+--------------+-------------|
| 50MHz | Open | Open | Closed |
|---------------+---------------+--------------+-------------|
| 66iMHz | Open | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION (U17-MX8315) |
|------------------------------------------------------------|
| Speed | JP5 | JP6 | JP7 |
|---------------+---------------+--------------+-------------|
| 20MHz | Open | Open | Open |
|---------------+---------------+--------------+-------------|
| 25MHz | Open | Closed | Open |
|---------------+---------------+--------------+-------------|
| 33MHz | Closed | Closed | Closed |
|---------------+---------------+--------------+-------------|
| 40MHz | Open | Closed | Closed |
|---------------+---------------+--------------+-------------|
| 50iMHz | Open | Closed | Open |
|---------------+---------------+--------------+-------------|
| 50MHz | Closed | Open | Open |
|---------------+---------------+--------------+-------------|
| 66iMHz | Closed | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VESA WAIT STATE CONFIGURATION |
|------------------------------------------------------------|
| Wait states | JP28 |
|----------------------------+-------------------------------|
| 0 wait states | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 1 wait state | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BUS SPEED CONFIGURATION |
|------------------------------------------------------------|
| CPU speed | JP29 |
|----------------------------+-------------------------------|
| <= 33MHz | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| > 33MHz | pins 2 & 3 closed |
+------------------------------------------------------------+