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# UNIDENTIFIED
POWERSPEC (VER. 2)
Processor CX486S/80486SX/ODP486SX/80486DX/80486DX2/ODP486DX2
Processor 20/25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set Unidentified
Video Chip None
Set
Maximum 64MB
Onboard
Memory
Maximum None
Video
Memory
Cache 32/64/128/256KB
BIOS AMI
Dimensions 254mm x 218mm
I/O Options 32-bit VESA local bus slots (3)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| External battery | JP21 | Turbo switch | JP25 |
|-------------------+----------+------------------+----------|
| Power LED & | JP22 | Reset switch | JP26 |
| keylock | | | |
|-------------------+----------+------------------+----------|
| Speaker | JP23 | 32-bit VESA | SL1 – |
| | | local bus slots | SL3 |
|-------------------+----------+------------------+----------|
| Turbo LED | JP24 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+---------+------------|
| | Battery type select internal | JP1 | Closed |
|---+---------------------------------+---------+------------|
| | Battery type select external | JP1 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 1MB | (4) 256K x 9 | None | None |
|------------+---------------+---------------+---------------|
| 2MB | (4) 256K x 9 | (1) 256K x 36 | None |
|------------+---------------+---------------+---------------|
| 2MB | (4) 256K x 9 | None | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 2MB | None | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 2MB | None | (1) 512K x 36 | None |
|------------+---------------+---------------+---------------|
| 3MB | (4) 256K x 9 | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 3MB | (4) 256K x 9 | (1) 512K x 36 | None |
|------------+---------------+---------------+---------------|
| 3MB | None | (1) 512K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 4MB | (4) 1M x 9 | None | None |
|------------+---------------+---------------+---------------|
| 4MB | None | (1) 512K x 36 | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 5MB | (4) 1M x 9 | (1) 256K x 36 | None |
|------------+---------------+---------------+---------------|
| 5MB | None | (1) 1M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 5MB | (4) 256K x 9 | None | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 6MB | (4) 1M x 9 | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 6MB | (4) 256K x 9 | (1) 1M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 6MB | (4) 256K x 9 | (1) 256K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 6MB | None | (1) 512K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 7MB | (4) 1M x 9 | (1) 512K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 8MB | (4) 1M x 9 | (1) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 8MB | None | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 9MB | (4) 1M x 9 | (1) 1M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 9MB | (4) 256K x 9 | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 10MB | (4) 1M x 9 | (1) 512K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 12MB | (4) 1M x 9 | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 12MB | (4) 1M x 9 | (1) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 12MB | None | (1) 2M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 13MB | (4) 256K x 9 | (1) 2M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 13MB | (4) 1M x 9 | (1) 2M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 16MB | (4) 4M x 9 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (4) 1M x 9 | (1) 2M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 16MB | None | (1) 2M x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 17MB | (4) 4M x 9 | (1) 256K x 36 | None |
|------------+---------------+---------------+---------------|
| 17MB | (4) 256K x 9 | None | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 18MB | (4) 4M x 9 | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 18MB | (4) 256K x 9 | (1) 4M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 19MB | (4) 4M x 9 | (1) 512K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 20MB | (4) 4M x 9 | (1) 1M x 36 | None |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 20MB | (4) 1M x 9 | None | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 21MB | (4) 256K x 9 | (1) 4M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 21MB | (4) 1M x 9 | (1) 256K x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 21MB | (4) 4M x 9 | (1) 256K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 22MB | (4) 4M x 9 | (1) 512K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 24MB | (4) 4M x 9 | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 24MB | (4) 1M x 9 | (1) 4M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 24MB | None | (1) 2M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 25MB | (4) 256K x 9 | (1) 2M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 25MB | (4) 4M x 9 | (1) 2M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 28MB | (4) 4M x 9 | (1) 2M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 28MB | (4) 1M x 9 | (1) 2M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | (4) 4M x 9 | (1) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 32MB | None | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 33MB | (4) 256K x 9 | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 33MB | (4) 4M x 9 | (1) 4M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 34MB | (4) 4M x 9 | (1) 512K x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 36MB | (4) 1M x 9 | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 36MB | (4) 4M x 9 | (1) 4M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 40MB | (4) 4M x 9 | (1) 2M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 48MB | (4) 4M x 9 | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 64MB | (4) 16M x 9 | None | None |
|------------------------------------------------------------|
| Note: Banks 1 & 2 are interchangeable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 x 8 |
|----------+---------------+---------------+-----------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 16K/32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP15 | JP16 | JP17 | JP19 | JP20 |
|----------+---------+---------+---------+---------+---------|
| 32KB | 2 & 3 | Open | Open | Open | Open |
|----------+---------+---------+---------+---------+---------|
| 64KB | 1 & 2 | Open | Open | Closed | Open |
|----------+---------+---------+---------+---------+---------|
| 128KB | 2 & 3 | 2 & 3 | Closed | Closed | Open |
|----------+---------+---------+---------+---------+---------|
| 256KB | 1 & 2 | 1 & 2 | Closed | Closed | Closed |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE TAG CONFIGURATION |
|------------------------------------------------------------|
| Size | JP27 |
|----------------------------+-------------------------------|
| 8K x 8 | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 16K x 8 | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 32K x 8 | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| Speed | JP2 | JP3 | JP4 | JP7 | JP18 |
|----------+----------+----------+---------+--------+--------|
| 20MHz | Open | Open | Open | 1 & 2 | Open |
|----------+----------+----------+---------+--------+--------|
| 25MHz | Closed | Open | Open | 1 & 2 | Open |
|----------+----------+----------+---------+--------+--------|
| 33MHz | Closed | Closed | Closed | 1 & 2 | Open |
|----------+----------+----------+---------+--------+--------|
| 40MHz | Closed | Closed | Open | 2 & 3 | Closed |
|----------+----------+----------+---------+--------+--------|
| 50iMHz | Closed | Open | Open | 1 & 2 | Open |
|----------+----------+----------+---------+--------+--------|
| 50MHz | Open | Open | Closed | 2 & 3 | Closed |
|----------+----------+----------+---------+--------+--------|
| 66iMHz | Closed | Closed | Closed | 1 & 2 | Open |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP6 | JP9 | JP11 | JP12 | JP14 |
|----------------+-------+-------+-----------+-------+-------|
| CX486S | Open | Open | 2 & 3 | 2 & 3 | Open |
|----------------+-------+-------+-----------+-------+-------|
| CX486S+CX83D87 | 1 & 2 | 1 & 2 | 1 & 2, 3 | 1 & 2 | 2 & 3 |
| | | | & 4 | | |
|----------------+-------+-------+-----------+-------+-------|
| 80486SX | Open | Open | 2 & 3 | 2 & 3 | Open |
|----------------+-------+-------+-----------+-------+-------|
| ODP486SX | Open | 2 & 3 | 1 & 2, 3 | 2 & 3 | Open |
| | | | & 4 | | |
|----------------+-------+-------+-----------+-------+-------|
| 80486DX | Open | 1 & 2 | 1 & 2, 3 | 2 & 3 | Open |
| | | | & 4 | | |
|----------------+-------+-------+-----------+-------+-------|
| 80486DX2 | Open | 1 & 2 | 1 & 2, 3 | 2 & 3 | Open |
| | | | & 4 | | |
|----------------+-------+-------+-----------+-------+-------|
| ODP486DX2 | Open | 2 & 3 | 1 & 2, 3 | 2 & 3 | Open |
| | | | & 4 | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+