(TXT) View Source
# UNIDENTIFIED
BC3486UL
Processor 80386DX/CX486DLC/80486SX/80487SX/ODP487SX/80486DX/
80486DX2
Processor 20/25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set UMC
Video Chip None
Set
Maximum 32MB
Onboard
Memory
Maximum None
Video
Memory
Cache 64/128/256KB
BIOS AMI
Dimensions 254mm x 218mm
I/O Options Local bus slot
NPU Options 80387DX/CX83D87
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| External battery | BATT | Turbo switch | CN4 |
|------------------+----------+-------------------+----------|
| Power LED & | CN1 | Turbo LED | CN5 |
| keylock | | | |
|------------------+----------+-------------------+----------|
| Speaker | CN2 | Auxiliary | KBD |
| | | keyboard | |
| | | connector | |
|------------------+----------+-------------------+----------|
| Reset switch | CN3 | Local bus slot | SL1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|------------------------------------+-------+---------------|
| | Battery type select internal | BATT | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| | Battery type select external | BATT | Closed |
|---+--------------------------------+-------+---------------|
| | CMOS memory clear | BATT | Pins 3 & 4 |
| | | | closed |
|---+--------------------------------+-------+---------------|
| | Monitor type select color | C/M | Closed |
|---+--------------------------------+-------+---------------|
| | Monitor type select monochrome | C/M | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|------------------------------------------------------------|
| Note: The location of banks 0 & 1 is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 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) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JS1 | JS2 | JS3 | JS4 | JS5 | JS6 |
|--------+--------+--------+--------+--------+-------+-------|
| 64KB | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 2 & 3 |
|--------+--------+--------+--------+--------+-------+-------|
| 128KB | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 |
|--------+--------+--------+--------+--------+-------+-------|
| 256KB | 2 & 3 | 2 & 3 | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (80386) |
|------------------------------------------------------------|
| Speed | JF1 | JF2 | JF3 | JF4 | JF5 |
|---------+--------+----------+----------+---------+---------|
| 25MHz | Open | Closed | Closed | Closed | Open |
|---------+--------+----------+----------+---------+---------|
| 33MHz | Open | Open | Closed | Closed | Closed |
|---------+--------+----------+----------+---------+---------|
| 40MHz | Open | Closed | Open | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION (80486) |
|------------------------------------------------------------|
| Speed | JF1 | JF2 | JF3 | JF4 | JF5 |
|----------+----------+----------+---------+-------+---------|
| 20MHz | Closed | Closed | Open | Open | Closed |
|----------+----------+----------+---------+-------+---------|
| 25MHz | Open | Closed | Closed | Open | Closed |
|----------+----------+----------+---------+-------+---------|
| 33MHz | Open | Open | Closed | Open | Closed |
|----------+----------+----------+---------+-------+---------|
| 50iMHz | Open | Closed | Closed | Open | Closed |
|----------+----------+----------+---------+-------+---------|
| 50MHz | Open | Open | Open | Open | Open |
|----------+----------+----------+---------+-------+---------|
| 66iMHz | Open | Open | Closed | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JC1 | JC2 | JC3 | JC4 |
|----------+------------+------------+-----------+-----------|
| 80386 | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & | Pins 2 & |
| | closed | closed | 3 closed | 3 closed |
|----------+------------+------------+-----------+-----------|
| CX486DLC | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & | Pins 2 & |
| | closed | closed | 3 closed | 3 closed |
|----------+------------+------------+-----------+-----------|
| 80486 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & | Pins 1 & |
| | closed | closed | 2 closed | 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (80486 ONLY) |
|------------------------------------------------------------|
| Type | JC5 | J6C |
|------------+--------------------------+--------------------|
| 80486SX | Pins 2 & 3 closed | Open |
|------------+--------------------------+--------------------|
| 80487SX | Pins 1 & 2, 3 & 4 closed | Pins 2 & 3 closed |
|------------+--------------------------+--------------------|
| ODP487SX | Pins 1 & 2, 3 & 4 closed | Pins 2 & 3 closed |
|------------+--------------------------+--------------------|
| 80486DX | Pins 1 & 2, 3 & 4 closed | Pins 1 & 2 closed |
|------------+--------------------------+--------------------|
| 80486DX2 | Pins 1 & 2, 3 & 4 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| NPU SELECTION |
|------------------------------------------------------------|
| Setting | JC7 | JC8 |
|--------------------+-------------------+-------------------|
| NPU not installed | Open | Open |
|--------------------+-------------------+-------------------|
| NPU installed | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LOCAL BUS SLOT SELECTION |
|------------------------------------------------------------|
| Setting | J1 | J2 | J3 |
|---------------------+------------+------------+------------|
| Normal ISA cards | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
| installed | closed | closed | closed |
|---------------------+------------+------------+------------|
| Local Bus cards | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| installed | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LOCAL BUS CARD INSTALLED SELECTION |
|------------------------------------------------------------|
| CPU installed | J4 | J5 |
|------------------+--------------------+--------------------|
| 80386 | Pins 2 & 3 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 80486DX-50 | Pins 2 & 3 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| All CPU types | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+