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# UNIDENTIFIED
F4DXL-UC4
Processor UMCU5/80486SX/IBM486DX/CX486DX/AM486DX/80486DX/IBM486DX2/
CX486DX2/AM486DX2/80486DX2/IBM486DX4/CX486DX4/AM486DX4/
80486DX4/P24T
Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/
Speed 100(internal)MHz
Chip Set UMC
Max. 144MB
Onboard
DRAM
Cache 64/128/256KB
BIOS Award
Dimensions 254mm x 218mm
I/O 32-bit VESA local bus slots (3), green PC connector
Options
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+-----------------+----------|
| Turbo LED | D1 | Turbo switch | JP27 |
|--------------------+----------+-----------------+----------|
| External battery | JP1 | Speaker | JP28 |
|--------------------+----------+-----------------+----------|
| Green PC LED | JP24 | Power LED & | JP29 |
| | | keylock | |
|--------------------+----------+-----------------+----------|
| Green PC connector | JP25 | 32-bit VESA | SL1 - |
| | | local bus slots | SL3 |
|--------------------+----------+-----------------+----------|
| Reset switch | JP26 | | |
|------------------------------------------------------------|
| Note: The location of D1 is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|----------------------------------+--------+----------------|
| » | CMOS memory normal operation | JP1 | Pins 2 & 3 |
| | | | closed |
|---+------------------------------+--------+----------------|
| | CMOS memory clear | JP1 | Pins 3 & 4 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 1MB | None | None | (4) 256K x 9 |
|------------+---------------+---------------+---------------|
| 4MB | None | None | (4) 1M x 9 |
|------------+---------------+---------------+---------------|
| 4MB | (1) 1M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 5MB | (1) 1M x 36 | None | (4) 256K x 9 |
|------------+---------------+---------------+---------------|
| 8MB | (1) 1M x 36 | None | (4) 1M x 9 |
|------------+---------------+---------------+---------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 8MB | (1) 2M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 9MB | (1) 1M x 36 | (1) 1M x 36 | (4) 256K x 9 |
|------------+---------------+---------------+---------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (4) 1M x 9 |
|------------+---------------+---------------+---------------|
| 16MB | None | None | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 16MB | (1) 2M x 36 | (1) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 16MB | (1) 4M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 20MB | (1) 1M x 36 | None | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 24MB | (1) 2M x 36 | None | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 32MB | (1) 2M x 36 | (1) 2M x 36 | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 32MB | (1) 4M x 36 | None | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 32MB | (1) 8M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 48MB | (1) 4M x 36 | (1) 4M x 36 | (4) 4M x 9 |
|------------+---------------+---------------+---------------|
| 64MB | (1) 8M x 36 | (1) 8M x 36 | None |
|------------+---------------+---------------+---------------|
| 64MB | (1) 16M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 128MB | (1) 16M x 36 | (1) 16M x 36 | None |
|------------+---------------+---------------+---------------|
| 144MB | (1) 16M x 36 | (1) 16M x 36 | (4) 4M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 (A) | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
|-------------+---------------+---------------+--------------|
| 256KB (B) | (4) 64K x 8 | None | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP7 | JP8 | JP9 | JP10 |
|--------+--------+--------+--------------------+------------|
| 64KB | Open | Open | Open | Pins 2 & 3 |
| | | | | closed |
|--------+--------+--------+--------------------+------------|
| 128KB | Open | Closed | Pins 1 & 2 closed | Pins 1 & 2 |
| | | | | closed |
|--------+--------+--------+--------------------+------------|
| 256KB | Closed | Closed | Pins 2 & 3 closed | Pins 2 & 3 |
| (A) | | | | closed |
|--------+--------+--------+--------------------+------------|
| 256KB | Closed | Closed | Pins 1 & 2, 3 & 4 | Pins 1 & 2 |
| (B) | | | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP11 | JP12 | JP13 | JP17 |
|--------------+-----------+-----------+----------+----------|
| UMC U5 | 2 & 3 | 2 & 3 | 2 & 3 | 3 & 4 |
|--------------+-----------+-----------+----------+----------|
| 80486SX | Open | 2 & 3 | 2 & 3 | Open |
|--------------+-----------+-----------+----------+----------|
| IBM486DX | 1 & 2, 3 | 1 & 2, 3 | 2 & 3 | Open |
| | & 4 | & 4, 5 & | | |
| | | 6 | | |
|--------------+-----------+-----------+----------+----------|
| CX486DX | 1 & 2, 3 | 1 & 2, 3 | 2 & 3 | Open |
| | & 4 | & 4, 5 & | | |
| | | 6 | | |
|--------------+-----------+-----------+----------+----------|
| AM486DX | Open | 2 & 3 | 1 & 2, 3 | 1 & 2 |
| | | | & 4 | |
|--------------+-----------+-----------+----------+----------|
| 80486DX | Open | 2 & 3 | 1 & 2, 3 | 1 & 2 |
| | | | & 4 | |
|--------------+-----------+-----------+----------+----------|
| IBM486DX2 | 1 & 2, 3 | 1 & 2, 3 | 1 & 2, 3 | 1 & 2 |
| | & 4, 5 & | & 4, 5 & | & 4 | |
| | 6 | 6 | | |
|--------------+-----------+-----------+----------+----------|
| CX486DX2 | 1 & 2, 3 | 1 & 2, 3 | 1 & 2, 3 | 1 & 2 |
| | & 4, 5 & | & 4, 5 & | & 4 | |
| | 6 | 6 | | |
|--------------+-----------+-----------+----------+----------|
| AM486DX2 | Open | 2 & 3 | 1 & 2, 3 | 1 & 2 |
| | | | & 4 | |
|--------------+-----------+-----------+----------+----------|
| AM486DX2-80 | 2 & 3 | 2 & 3 | 1 & 2, 3 | 1 & 2, 3 |
| | | | & 4 | & 4 |
|--------------+-----------+-----------+----------+----------|
| 80486DX2 | Open | 2 & 3 | 1 & 2, 3 | 1 & 2 |
| | | | & 4 | |
|--------------+-----------+-----------+----------+----------|
| 80486DX2-66 | 1 & 2, 4 | 1 & 2, 4 | 1 & 2, 3 | 1 & 2 |
| (OD) | & 5 | & 5 | & 4 | |
|--------------+-----------+-----------+----------+----------|
| IBM486DX4 | 1 & 2, 3 | 1 & 2, 3 | 1 & 2, 3 | 1 & 2 |
| | & 4, 5 & | & 4, 5 & | & 4 | |
| | 6 | 6 | | |
|--------------+-----------+-----------+----------+----------|
| CX486DX4 | 1 & 2, 3 | 1 & 2, 3 | 1 & 2, 3 | 1 & 2 |
| | & 4, 5 & | & 4, 5 & | & 4 | |
| | 6 | 6 | | |
|--------------+-----------+-----------+----------+----------|
| AM486DX4 | 2 & 3 | 2 & 3 | 1 & 2, 3 | 1 & 2, 3 |
| | | | & 4 | & 4 |
|--------------+-----------+-----------+----------+----------|
| 80486DX4 | 1 & 2 | 1 & 2 | 1 & 2, 3 | 1 & 2 |
| | | | & 4 | |
|--------------+-----------+-----------+----------+----------|
| P24T | 1 & 2 | 1 & 2 | 1 & 2, 3 | 2 & 3 |
| | | | & 4 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed |
| position. If AM486DX2-80 CPU is used, jumper JP12 pin |
| 4 & JP20 pin 3 also. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP18 | JP19 | JP20 |
|----------------+----------------+----------------+---------|
| UMC U5 | 1 & 2 | Open | Open |
|----------------+----------------+----------------+---------|
| 80486SX | Open | Open | Open |
|----------------+----------------+----------------+---------|
| IBM486DX | 2 & 3, 4 & 5 | 2 & 3, 4 & 5 | Open |
|----------------+----------------+----------------+---------|
| CX486DX | 2 & 3, 4 & 5 | 2 & 3, 4 & 5 | Open |
|----------------+----------------+----------------+---------|
| AM486DX | Open | Open | Open |
|----------------+----------------+----------------+---------|
| 80486DX | Open | Open | Open |
|----------------+----------------+----------------+---------|
| IBM486DX2 | 2 & 3, 4 & 5 | 2 & 3 | Open |
|----------------+----------------+----------------+---------|
| CX486DX2 | 2 & 3, 4 & 5 | 2 & 3 | Open |
|----------------+----------------+----------------+---------|
| AM486DX2 | Open | Open | Open |
|----------------+----------------+----------------+---------|
| AM486DX2-80 | 1 & 2 | Open | 1 & 2 |
|----------------+----------------+----------------+---------|
| 80486DX2 | Open | Open | Open |
|----------------+----------------+----------------+---------|
| 80486DX2-66 | 3 & 4, 5 & 6 | 1 & 2, 3 & 4 | Open |
| (OD) | | | |
|----------------+----------------+----------------+---------|
| IBM486DX4 | 2 & 3, 4 & 5 | 2 & 3 | Open |
|----------------+----------------+----------------+---------|
| CX486DX4 | 2 & 3, 4 & 5 | 2 & 3 | Open |
|----------------+----------------+----------------+---------|
| AM486DX4 | 1 & 2 | Open | Open |
|----------------+----------------+----------------+---------|
| 80486DX4 | 5 & 6 | 1 & 2, 3 & 4 | Open |
|----------------+----------------+----------------+---------|
| P24T | 5 & 6 | 1 & 2, 3 & 4 | Open |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed |
| position. If AM486DX2-80 CPU is used, jumper JP12 pin |
| 4 & JP20 pin 3 also. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP4 | JP5 | JP6 |
|---------------+--------------+--------------+--------------|
| 25MHz | Open | Open | Closed |
|---------------+--------------+--------------+--------------|
| 33MHz | Closed | Closed | Closed |
|---------------+--------------+--------------+--------------|
| 40MHz | Open | Closed | Closed |
|---------------+--------------+--------------+--------------|
| 50iMHz | Open | Open | Closed |
|---------------+--------------+--------------+--------------|
| 50MHz | Closed | Open | Open |
|---------------+--------------+--------------+--------------|
| 66iMHz | Closed | Closed | Closed |
|---------------+--------------+--------------+--------------|
| 75iMHz | Open | Open | Closed |
|---------------+--------------+--------------+--------------|
| 80iMHz | Open | Closed | Closed |
|---------------+--------------+--------------+--------------|
| 100iMHz | Closed | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JP14 | JP15 | JP16 | JP23 |
|----------+--------------+------------+------------+--------|
| » | 3.3v | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Closed |
| | | closed | closed | closed | |
|---+------+--------------+------------+------------+--------|
| | 4v | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Open |
| | | closed | closed | closed | |
|---+------+--------------+------------+------------+--------|
| | 5v | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 | Open |
| | | closed | closed | closed | |
+------------------------------------------------------------+