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# UNIDENTIFIED
VL-BUS
Processor CX486S/80486SX/80487SX/CX486M6(WB)/CX486M6(WT)/80486DX/80486DX2/P24T/P24T(WB)/P24T(WT)
Processor 25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set UNI
Video Chip None
Set
Maximum 128MB
Onboard
Memory
Maximum None
Video
Memory
Cache 32/64/128/256KB
BIOS AMI
Dimensions 254mm x 218mm
I/O 32-bit VESA local bus slots (3)
Options
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------+----------+----------------------+----------|
| Turbo switch | J4 | External battery | J8 |
|---------------+----------+----------------------+----------|
| Turbo LED | J5 | Reset switch | J10 |
|---------------+----------+----------------------+----------|
| Speaker | J6 | 32-bit VESA local | SL1 - |
| | | bus slots | SL3 |
|---------------+----------+----------------------+----------|
| Power LED & | J7 | | |
| keylock | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|--------------------------------------+-------+-------------|
| | Monitor type select monochrome | JP12 | Open |
|---+----------------------------------+-------+-------------|
| | Monitor type select CGA | JP12 | Closed |
|---+----------------------------------+-------+-------------|
| | Monitor type select | JP12 | Any setting |
| | VGA/SVGA/EGA/XGA | | |
|---+----------------------------------+-------+-------------|
| » | CMOS memory normal operation | JP14 | Pins 1 & 2 |
| | | | closed |
|---+----------------------------------+-------+-------------|
| | CMOS memory clear | JP14 | Pins 2 & 3 |
| | | | closed |
|---+----------------------------------+-------+-------------|
| » | Factory configured - do not | JP100 | Pins 1 & 2 |
| | alter | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 1MB | (4) 256K x 9 | None |
|------------------+--------------------+--------------------|
| 2MB | (4) 256K x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 4MB | (4) 1M x 9 | None |
|------------------+--------------------+--------------------|
| 5MB | (4) 256K x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | None |
|------------------+--------------------+--------------------|
| 20MB | (4) 1M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 20MB | (4) 4M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 64MB | (4) 16M x 9 | None |
|------------------+--------------------+--------------------|
| 80MB | (4) 16M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 128MB | (4) 16M x 9 | (4) 16M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|---------+---------------+--------------+-------------------|
| 32KB | (4) 8K x 8 | None | (1) 8K x 8 |
|---------+---------------+--------------+-------------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
|---------+---------------+--------------+-------------------|
| 128KB | (4) 32K x 8 | None | (1) 8K/16K/32Kx 8 |
|---------+---------------+--------------+-------------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 16K/32Kx 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP20 | JP21 | JP22 | JP25 |
|----------+-----------+-----------+---------------+---------|
| 32KB | Open | Open | 2 & 3 | Open |
|----------+-----------+-----------+---------------+---------|
| 64KB | Open | Closed | 1 & 2 | Open |
|----------+-----------+-----------+---------------+---------|
| 128KB | Closed | Closed | 1 & 2, 3 & 4 | Open |
|----------+-----------+-----------+---------------+---------|
| 256KB | Closed | Closed | 1 & 2, 4 & 5 | Closed |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| Speed | JP16 | JP17 | JP18 |
|---------------+--------------+--------------+--------------|
| 25MHz | Closed | Closed | Open |
|---------------+--------------+--------------+--------------|
| 33MHz | Closed | Open | Closed |
|---------------+--------------+--------------+--------------|
| 40MHz | Open | Closed | Open |
|---------------+--------------+--------------+--------------|
| 50iMHz | Closed | Closed | Open |
|---------------+--------------+--------------+--------------|
| 50MHz | Open | Open | Closed |
|---------------+--------------+--------------+--------------|
| 66iMHz | Closed | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP2 |
|--------------------------+---------------------------------|
| CX486S | Pins 5 & 6 closed |
|--------------------------+---------------------------------|
| 80486SX | Pins 5 & 6 closed |
|--------------------------+---------------------------------|
| 80487SX | Pins 1 & 2, 4 & 5, 6 & 7 closed |
|--------------------------+---------------------------------|
| 80486DX | Pins 2 & 3, 4 & 5, 6 & 7 closed |
|--------------------------+---------------------------------|
| 80486DX2 | Pins 2 & 3, 4 & 5, 6 & 7 closed |
|--------------------------+---------------------------------|
| P24T | Pins 1 & 2, 4 & 5, 6 & 7 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP1 | JP4 | JP5 | JP10 | JP11 |
|---------------+---------+--------+--------+-------+--------|
| CX486M6 (WB) | Open | 1 & 2 | 2 & 3 | 2 & 3 | Open |
|---------------+---------+--------+--------+-------+--------|
| CX486M6 (WT) | Open | 2 & 3 | 1 & 2 | 1 & 2 | Open |
|---------------+---------+--------+--------+-------+--------|
| 80486DX | Open | 2 & 3 | 1 & 2 | 1 & 2 | Open |
|---------------+---------+--------+--------+-------+--------|
| 80486DX2 | Open | 2 & 3 | 1 & 2 | 1 & 2 | Open |
|---------------+---------+--------+--------+-------+--------|
| P24T (WB) | Closed | 2 & 3 | 1 & 2 | 1 & 2 | Closed |
|---------------+---------+--------+--------+-------+--------|
| P24T (WT) | Open | 2 & 3 | 1 & 2 | 1 & 2 | Open |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VL-BUS SPEED SELECTION |
|------------------------------------------------------------|
| Setting | JP15 |
|----------------------------+-------------------------------|
| <= 33MHz | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| >33 MHz | Pins 2 & 3 closed |
+------------------------------------------------------------+