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# J-MARK COMPUTER CORPORATION
J-446A (V2.0)
Processor 80486SX/AM486DX2/CX486DX2/80486DX2/CX486DX4/AM486DX4/
AM486DX4(WB)/AM486DX4(WT)/80486DX4(WB)/80486DX4(WT)/
P24D/P24T/CX5X86/AM5X86
Processor 25/33/40/50(internal)/50/66(internal)/80(internal)/100(internal)/
Speed 120(internal)MHz
Chip Set SIS
Video Chip None
Set
Maximum 128MB
Onboard
Memory
Maximum None
Video
Memory
Cache 128/256KB
BIOS Award
Dimensions 254mm x 218mm
I/O 32-bit PCI slots (3), floppy drive interface, green PC connector,
Options IDE interfaces (2), parallel port, serial ports (2)
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Parallel port | CN1 | IDE interface | JP33 |
| | | LED | |
|-------------------+----------+------------------+----------|
| IDE interface 2 | CN2 | Green PC | JP35 |
| | | connector | |
|-------------------+----------+------------------+----------|
| IDE interface 1 | CN3 | Turbo LED | JP37 |
|-------------------+----------+------------------+----------|
| Floppy drive | CN4 | Reset switch | JP38 |
| interface | | | |
|-------------------+----------+------------------+----------|
| Serial port 1 | CN5 | Turbo switch | JP39 |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN6 | Power LED & | JP40 |
| | | keylock | |
|-------------------+----------+------------------+----------|
| External battery | JP1 | Green PC LED | LED1 |
|-------------------+----------+------------------+----------|
| Speaker | JP27 | 32-bit PCI slots | PC1 - |
| | | | PC3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | Monitor type select color | JP6 | Closed |
|---+---------------------------------+-------+--------------|
| | Monitor type select monochrome | JP6 | Open |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP13 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| » | BIOS type select EPROM | JP19 | Open |
|---+---------------------------------+-------+--------------|
| | BIOS type select 5v flash | JP19 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | BIOS type select 12v flash | JP19 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP21 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| | Turbo enabled | JP39 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Turbo disabled | JP39 | Pins 1 & 2 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+--------------+------------+------------+------------|
| 1MB | (1) 256K x | None | None | None |
| | 36 | | | |
|------+--------------+------------+------------+------------|
| 2MB | (1) 512K x | None | None | None |
| | 36 | | | |
|------+--------------+------------+------------+------------|
| 2MB | (1) 256K x | (1) 256K x | None | None |
| | 36 | 36 | | |
|------+--------------+------------+------------+------------|
| 3MB | (1) 512K x | (1) 256K x | None | None |
| | 36 | 36 | | |
|------+--------------+------------+------------+------------|
| 3MB | (1) 256K x | (1) 256K x | (1) 256K x | None |
| | 36 | 36 | 36 | |
|------+--------------+------------+------------+------------|
| 3MB | (1) 256K x | (1) 512K x | None | None |
| | 36 | 36 | | |
|------+--------------+------------+------------+------------|
| 4MB | (1) 1M x 36 | None | None | None |
|------+--------------+------------+------------+------------|
| 4MB | (1) 512K x | (1) 256K x | (1) 256K x | None |
| | 36 | 36 | 36 | |
|------+--------------+------------+------------+------------|
| 4MB | (1) 512K x | (1) 512K x | None | None |
| | 36 | 36 | | |
|------+--------------+------------+------------+------------|
| 4MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|------+--------------+------------+------------+------------|
| 5MB | (1) 1M x 36 | (1) 256K x | None | None |
| | | 36 | | |
|------+--------------+------------+------------+------------|
| 5MB | (1) 512K x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|------+--------------+------------+------------+------------|
| 6MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | None |
| | | 36 | 36 | |
|------+--------------+------------+------------+------------|
| 6MB | (1) 1M x 36 | (1) 512K x | None | None |
| | | 36 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 512K x | (1) 512K x | (1) 512K x | None |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 7MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 2M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 512K x | (1) 512K x | None |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 512K x | (1) 512K x | (1) 512K x | (1) 512K x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 9MB | (1) 2M x 36 | (1) 256K x | None | None |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 2M x 36 | (1) 256K x | (1) 256K x | None |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 2M x 36 | (1) 512K x | None | None |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 1M x 36 | (1) 512K x | (1) 512K x | (1) 512K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 11MB | (1) 2M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 2M x 36 | (1) 512K x | (1) 512K x | None |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 2M x 36 | (1) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 14MB | (1) 2M x 36 | (1) 512K x | (1) 512K x | (1) 512K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 4M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | (1) 2M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 4M x 36 | (1) 256K x | None | None |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | None |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 4M x 36 | (1) 512K x | None | None |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 19MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 4M x 36 | (1) 512K x | (1) 512K x | None |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 4M x 36 | (1) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 2M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 1M x 36 | (1) 2M x 36 | (1) 2M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 1M x 36 | (1) 4M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 22MB | (1) 4M x 36 | (1) 512K x | (1) 512K x | (1) 512K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 4M x 36 | (1) 2M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 2M x 36 | (1) 4M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 28MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 28MB | (1) 1M x 36 | (1) 2M x 36 | (1) 2M x | (1) 2M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 8M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 2M x 36 | (1) 2M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x | (1) 2M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 33MB | (1) 8M x 36 | (1) 256K x | None | None |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 34MB | (1) 8M x 36 | (1) 256K x | (1) 256K x | None |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 34MB | (1) 8M x 36 | (1) 512K x | None | None |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 35MB | (1) 8M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 36MB | (1) 8M x 36 | (1) 512K x | (1) 512K x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 36MB | (1) 8M x 36 | (1) 1M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 38MB | (1) 8M x 36 | (1) 512K x | (1) 512K x | (1) 512K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 8M x 36 | (1) 1M x | (1) 1M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 8M x 36 | (1) 2M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 4M x 36 | (1) 2M x | (1) 2M x | (1) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 44MB | (1) 8M x 36 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 8M x 36 | (1) 2M x | (1) 2M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 8M x 36 | (1) 4M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 52MB | (1) 1M x 36 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 56MB | (1) 8M x 36 | (1) 2M x | (1) 2M x | (1) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 8M x 36 | (1) 4M x | (1) 4M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 8M x 36 | (1) 8M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 68MB | (1) 1M x 36 | (1) 8M x | (1) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 72MB | (1) 2M x 36 | (1) 8M x | (1) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 80MB | (1) 8M x 36 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 100MB | (1) 1M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 104MB | (1) 2M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 112MB | (1) 4M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 128KB | (4) 32K x 8 | (1) 8K x 8 |
|------------------+--------------------+--------------------|
| 256KB | (4) 64K x 8 | (1) 16K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP7 | JP8 |
|------------------+--------------------+--------------------|
| 128KB | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 256KB | Pins 1 & 2 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP11 | JP12 |
|------------+--------------------------+--------------------|
| 25MHz | Open | Pins 1 & 2 closed |
|------------+--------------------------+--------------------|
| 33MHz | Pins 1 & 2, 3 & 4 closed | Pins 1 & 2 closed |
|------------+--------------------------+--------------------|
| 40MHz | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------+--------------------------+--------------------|
| 50iMHz | Open | Pins 1 & 2 closed |
|------------+--------------------------+--------------------|
| 50MHz | Pins 3 & 4 closed | Pins 2 & 3 closed |
|------------+--------------------------+--------------------|
| 66iMHz | Pins 1 & 2, 3 & 4 closed | Pins 1 & 2 closed |
|------------+--------------------------+--------------------|
| 80iMHz | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------+--------------------------+--------------------|
| 100iMHz | Pins 1 & 2, 3 & 4 closed | Pins 1 & 2 closed |
|------------+--------------------------+--------------------|
| 120iMHz | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP9 | JP10 | JP14 | JP15 | JP16 |
|----------------+---------+--------+--------+-------+-------|
| 80486SX | Open | 2 & 3 | Open | Open | Open |
|----------------+---------+--------+--------+-------+-------|
| AM486DX2 | 2 & 3 | 2 & 3 | Open | Open | 2 & 3 |
|----------------+---------+--------+--------+-------+-------|
| CX486DX2 | 2 & 3 | 2 & 3 | Open | Open | Open |
|----------------+---------+--------+--------+-------+-------|
| 80486DX2 | 2 & 3 | 2 & 3 | Open | Open | Open |
|----------------+---------+--------+--------+-------+-------|
| CX486DX4 | 2 & 3 | 2 & 3 | Open | Open | Open |
|----------------+---------+--------+--------+-------+-------|
| AM486DX4 | 2 & 3 | 1 & 2 | Open | 1 & 2 | 1 & 2 |
|----------------+---------+--------+--------+-------+-------|
| AM486DX4 (WB) | 2 & 3 | 1 & 2 | Open | 1 & 2 | 1 & 2 |
|----------------+---------+--------+--------+-------+-------|
| AM486DX4 (WT) | 2 & 3 | 2 & 3 | Open | Open | 1 & 2 |
|----------------+---------+--------+--------+-------+-------|
| 80486DX4 (WB) | 2 & 3 | 1 & 2 | Open | 1 & 2 | 1 & 2 |
|----------------+---------+--------+--------+-------+-------|
| 80486DX4 (WT) | 2 & 3 | 2 & 3 | Open | Open | Open |
|----------------+---------+--------+--------+-------+-------|
| P24D | 2 & 3 | 1 & 2 | Open | 1 & 2 | 1 & 2 |
|----------------+---------+--------+--------+-------+-------|
| P24T | 1 & 2 | 1 & 2 | 1 & 2 | Open | Open |
|----------------+---------+--------+--------+-------+-------|
| CX5X86 | 2 & 3 | 2 & 3 | Open | 1 & 2 | Open |
|----------------+---------+--------+--------+-------+-------|
| AM5X86 | 2 & 3 | 1 & 2 | Open | 1 & 2 | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (CON’T) |
|------------------------------------------------------------|
| Type | JP17 | JP20 | JP23 | JP24 | JP25 |
|---------------+-------+--------+-------+-------+-----------|
| 80486SX | 2 & 3 | Closed | 1 & 2 | 4 & 5 | 2 & 3 |
|---------------+-------+--------+-------+-------+-----------|
| AM486DX2 | Open | Open | Open | 4 & 5 | 1 & 2, 3 |
| | | | | | & 4 |
|---------------+-------+--------+-------+-------+-----------|
| CX486DX2 | 1 & 2 | Closed | Open | 2 & 3 | 1 & 2, 3 |
| | | | | | & 4 |
|---------------+-------+--------+-------+-------+-----------|
| 80486DX2 | 2 & 3 | Closed | 1 & 2 | 4 & 5 | 1 & 2, 3 |
| | | | | | & 4 |
|---------------+-------+--------+-------+-------+-----------|
| CX486DX4 | 1 & 2 | Closed | Open | 2 & 3 | 1 & 2, 3 |
| | | | | | & 4 |
|---------------+-------+--------+-------+-------+-----------|
| AM486DX4 | 2 & 3 | Closed | 2 & 3 | 4 & 5 | 1 & 2, 3 |
| | | | | | & 4 |
|---------------+-------+--------+-------+-------+-----------|
| AM486DX4 (WB) | 2 & 3 | Closed | 2 & 3 | 4 & 5 | 1 & 2, 3 |
| | | | | | & 4 |
|---------------+-------+--------+-------+-------+-----------|
| AM486DX4 (WT) | Open | Open | Open | 4 & 5 | 1 & 2, 3 |
| | | | | | & 4 |
|---------------+-------+--------+-------+-------+-----------|
| 80486DX4 (WB) | 2 & 3 | Closed | 2 & 3 | 4 & 5 | 1 & 2, 3 |
| | | | | | & 4 |
|---------------+-------+--------+-------+-------+-----------|
| 80486DX4 (WT) | 2 & 3 | Closed | 1 & 2 | 4 & 5 | 1 & 2, 3 |
| | | | | | & 4 |
|---------------+-------+--------+-------+-------+-----------|
| P24D | 2 & 3 | Closed | 2 & 3 | 4 & 5 | 1 & 2, 3 |
| | | | | | & 4 |
|---------------+-------+--------+-------+-------+-----------|
| P24T | 2 & 3 | Closed | Open | 1 & 2 | 1 & 2, 3 |
| | | | | | & 4 |
|---------------+-------+--------+-------+-------+-----------|
| CX5X86 | 2 & 3 | Closed | 2 & 3 | 4 & 5 | 1 & 2, 3 |
| | | | | | & 4 |
|---------------+-------+--------+-------+-------+-----------|
| AM5X86 | 2 & 3 | Closed | 2 & 3 | 4 & 5 | 1 & 2, 3 |
| | | | | | & 4 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (CON’T) |
|------------------------------------------------------------|
| Type | JP26 | JP28 | JP29 | JP30 |
|----------------+---------------+---------+--------+--------|
| 80486SX | 3 & 4 | Open | Open | Open |
|----------------+---------------+---------+--------+--------|
| AM486DX2 | 3 & 4 | Open | Open | Open |
|----------------+---------------+---------+--------+--------|
| CX486DX2 | 2 & 3 | 2 & 3 | 2 & 3 | Open |
|----------------+---------------+---------+--------+--------|
| 80486DX2 | 3 & 4 | Open | Open | Open |
|----------------+---------------+---------+--------+--------|
| CX486DX4 | 2 & 3 | 2 & 3 | 2 & 3 | Open |
|----------------+---------------+---------+--------+--------|
| AM486DX4 | 1 & 2, 3 & 4 | Open | 1 & 2 | Open |
|----------------+---------------+---------+--------+--------|
| AM486DX4 (WB) | 1 & 2, 3 & 4 | Open | 1 & 2 | Open |
|----------------+---------------+---------+--------+--------|
| AM486DX4 (WT) | 3 & 4 | Open | Open | Open |
|----------------+---------------+---------+--------+--------|
| 80486DX4 (WB) | 1 & 2, 3 & 4 | Open | 1 & 2 | Open |
|----------------+---------------+---------+--------+--------|
| 80486DX4 (WT) | 3 & 4 | Open | Open | Open |
|----------------+---------------+---------+--------+--------|
| P24D | 1 & 2, 3 & 4 | Open | 1 & 2 | Open |
|----------------+---------------+---------+--------+--------|
| P24T | 3 & 4 | 1 & 2 | 1 & 2 | Open |
|----------------+---------------+---------+--------+--------|
| CX5X86 | 1 & 2, 3 & 4 | Open | 1 & 2 | Open |
|----------------+---------------+---------+--------+--------|
| AM5X86 | 1 & 2, 3 & 4 | Open | 1 & 2 | 2 & 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JP31 | JP32 | JP34 |
|---------+----------------+----------------+----------------|
| 3.3v | Pins 2 & 3 | Pins 5 & 6 | Pins 2 & 3 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 3.45v | Pins 2 & 3 | Pins 3 & 4 | Pins 2 & 3 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 4v | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 |
| | closed | closed | closed |
|---------+----------------+----------------+----------------|
| 5v | Pins 1 & 2 | N/A | Pins 1 & 2 |
| | closed | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| GREEN PC CONFIGURATION |
|------------------------------------------------------------|
| Setting | JP36 |
|----------------------------+-------------------------------|
| Doze mode | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| Suspend mode | Pins 3 & 4 closed |
|----------------------------+-------------------------------|
| Standby mode | Pins 5 & 6, 7 & 8 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CMOS CONFIGURATION |
|------------------------------------------------------------|
| Setting | JP2 | JP3 |
|--------------------+-------------------+-------------------|
| CMOS memory normal | Pins 1 & 2 closed | Pins 1 & 2 closed |
| operation | | |
|--------------------+-------------------+-------------------|
| CMOS memory clear | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DAM CHANNEL SELECTION |
|------------------------------------------------------------|
| Channel | JP18 | JP22 |
|------------------+--------------------+--------------------|
| 1 | Pins 1 & 3 closed | Pins 1 & 3 closed |
|------------------+--------------------+--------------------|
| 3 | Pins 2 & 4 closed | Pins 2 & 4 closed |
+------------------------------------------------------------+