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# UNIDENTIFIED
B800 SERIES
Processor 80386DX/CX486DLC/80486SX/80487SX/80486DX/80486DX2
Processor 20/25/33/40/50 (Internal) /50/66 (Internal)
Speed
Chip Set C & T
Max. onboard 32MB
DRAM
Cache 64/128/256KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Options None
NPU Options 80387DX/CX487DLC
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-----------------------+----------+--------------+----------|
| External battery | JP2 | Speaker | JP34B |
| (4.5V) | | | |
|-----------------------+----------+--------------+----------|
| External battery | JP31 | Turbo LED | JP34C |
| (6.0V) | | | |
|-----------------------+----------+--------------+----------|
| External Keyboard | JP33 | Turbo switch | JP34D |
|-----------------------+----------+--------------+----------|
| Power LED & keylock | JP34A | Reset switch | JP34E |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper/Switch | Position |
|-------------------------------+---------------+------------|
| » | Monitor type select | JP3 | Open |
| | monochrome | | |
|---+---------------------------+---------------+------------|
| | Monitor type select color | JP3 | Closed |
|---+---------------------------+---------------+------------|
| » | IPC (82C206) normal | JP6 | Pins 1 & 2 |
| | operation | | closed |
|---+---------------------------+---------------+------------|
| | IPC (82C206) clear | JP6 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------+---------------+------------|
| » | Rechargeable battery | JP32 | Closed |
| | enabled | | |
|---+---------------------------+---------------+------------|
| | Rechargeable battery | JP32 | Open |
| | disabled | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG0 | TAG1 |
|-------+-------------+------------+------------+------------|
| 64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 | NONE |
|-------+-------------+------------+------------+------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 | NONE |
|-------+-------------+------------+------------+------------|
| 256KB | (4) 32K x 8 | (4) 32K x | (1) 8K x 8 | (1) 8K x 8 |
| | | 8 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP8A | JP8B | JP8C | JP8E | JP8F |
|-------+----------+-----------+---------+---------+---------|
| 64KB | Pins 2 & | Pins 1 & | Pins 1 | Pins 2 | Pins 1 |
| | 3 | 2 | & 2 | & 3 | & 2 |
|-------+----------+-----------+---------+---------+---------|
| 128KB | Pins 1 & | Pins 2 & | Pins 2 | Pins 1 | Pins 1 |
| | 2 | 3 | & 3 | & 2 | & 2 |
|-------+----------+-----------+---------+---------+---------|
| 256KB | Pins 2 & | Pins 1 & | Pins 1 | Pins 1 | Pins 2 |
| | 3 | 2 | & 2 | & 2 | & 3 |
|------------------------------------------------------------|
| Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE/SPEED CONFIGURATION |
|------------------------------------------------------------|
| Type/Speed |JP40/pins 1|JP40/pins 2|JP40/pins|JP40/pins|
| | & 7 | & 8 | 3 & 9 | 4 & 10 |
|----------------+-----------+-----------+---------+---------|
| 80386DX/33MHz | Closed | Open | Closed | Open |
|----------------+-----------+-----------+---------+---------|
| 80386DX/40MHz | Closed | Open | Open | Closed |
|----------------+-----------+-----------+---------+---------|
| 80486DLC/33MHz | Closed | Open | Closed | Open |
|----------------+-----------+-----------+---------+---------|
| 80486DLC/40MHz | Closed | Open | Open | Closed |
|----------------+-----------+-----------+---------+---------|
| 80486SX/20MHz | Closed | Closed | Closed | Closed |
|----------------+-----------+-----------+---------+---------|
| 80486SX/25MHz | Open | Open | Closed | Closed |
|----------------+-----------+-----------+---------+---------|
| 80486DX/33MHz | Open | Open | Closed | Open |
|----------------+-----------+-----------+---------+---------|
| 80486DX/50MHz | Open | Open | Open | Open |
|----------------+-----------+-----------+---------+---------|
|80486DX2/50i MHz| Open | Open | Closed | Closed |
|----------------+-----------+-----------+---------+---------|
|80486DX2/66i MHz| Open | Open | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Jumper | 386DX | 486DLC | 486SX/DX/DX2 | 487DX |
|--------+--------------+----------+--------------+----------|
| W1A | Pins 2 & 3 | Pins 2 & | Pins 1 & 2 | Pins 1 & |
| | closed | 3 closed | closed | 2 closed |
|--------+--------------+----------+--------------+----------|
| W1B | Pins 2 & 3 | Pins 1 & | Pins 1 & 2 | Pins 1 & |
| | closed | 2 closed | closed | 2 closed |
|--------+--------------+----------+--------------+----------|
| W1C | Pins 2 & 3 | Pins 2 & | Pins 1 & 2 | Pins 1 & |
| | closed | 3 closed | closed | 2 closed |
|--------+--------------+----------+--------------+----------|
| W2A | Pins 2 & 3 | Pins 2 & | Pins 1 & 2 | Pins 1 & |
| | closed | 3 closed | closed | 2 closed |
|--------+--------------+----------+--------------+----------|
| W2C | Pins 2 & 3 | Pins 2 & | Pins 1 & 2 | Pins 1 & |
| | closed | 3 closed | closed | 2 closed |
|--------+--------------+----------+--------------+----------|
| W2D | Pins 2 & 3 | Pins 2 & | Pins 1 & 2 | Pins 1 & |
| | closed | 3 closed | closed | 2 closed |
|--------+--------------+----------+--------------+----------|
| W2E | Pins 2 & 3 | Pins 2 & | Pins 1 & 2 | Pins 1 & |
| | closed | 3 closed | closed | 2 closed |
|--------+--------------+----------+--------------+----------|
| W2G | Pins 2 & 3 | Pins 2 & | Pins 1 & 2 | Pins 1 & |
| | closed | 3 closed | closed | 2 closed |
|--------+--------------+----------+--------------+----------|
| W2H | Pins 2 & 3 | Pins 2 & | Pins 1 & 2 | Pins 1 & |
| | closed | 3 closed | closed | 2 closed |
|--------+--------------+----------+--------------+----------|
| W3A | Pins 1 & 2 | Pins 1 & | Pins 2 & 3 | Pins 2 & |
| | closed | 2 closed | closed | 3 closed |
|--------+--------------+----------+--------------+----------|
| W3B | Pins 2 & 3 | Pins 1 & | Pins 1 & 2 | Pins 1 & |
| | closed | 2 closed | closed | 2 closed |
|--------+--------------+----------+--------------+----------|
| W4 | Pins 1 & 2 | Pins 2 & | Pins 1 & 2 | Pins 1 & |
| | closed | 3 closed | closed | 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 80486 CPU CONFIGURATION |
|------------------------------------------------------------|
| Type | JP12 | JP13 | JP30 |
|----------+----------------+----------------+---------------|
| 80486SX | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| 80487SX | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| 80486DX | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
|----------+----------------+----------------+---------------|
| 80486DX2 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
+------------------------------------------------------------+