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# VISIONEX
GREEN-B [4GPV3] MOTHERBOARD
Processor CX486M6/80486SX/80487SX/CX486M7/AM486DX/80486DX/
AM486DX2/80486DX2/P24C/P24T
Processor 25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set Unidentified
Video Chip None
Set
Maximum 128MB
Onboard
Memory
Maximum Video None
Memory
Cache 64/128/256KB
BIOS AMI/Award/MR
Dimensions 254mm x 218mm
I/O Options 32-bit VESA local bus slots (2), green PC
connector
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|------------------+----------+-------------------+----------|
| Turbo LED | JP10 | Green PC LED | JP39 |
|------------------+----------+-------------------+----------|
| Speaker | JP11 | Green PC | JP40 |
| | | connector | |
|------------------+----------+-------------------+----------|
| Power LED & | JP13 | Green PC | JP41 |
| keylock | | connector | |
|------------------+----------+-------------------+----------|
| Reset switch | JP15 | Turbo switch | JP95 |
|------------------+----------+-------------------+----------|
| External battery | JP17 | 32-bit VESA local | SL1 & |
| | | bus slots | SL2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|----------------------------------+-------+-----------------|
| | PQFP CPU disabled | JP1 | Closed |
|---+------------------------------+-------+-----------------|
| | PQFP CPU enabled | JP1 | Open |
|---+------------------------------+-------+-----------------|
| ยป | CMOS memory normal operation | JP16 | Pins 1 & 2 |
| | | | closed |
|---+------------------------------+-------+-----------------|
| | CMOS memory clear | JP16 | Pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|------------------+--------------------+--------------------|
| 5MB | (4) 1M x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | None |
|------------------+--------------------+--------------------|
| 17MB | (4) 256K x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 17MB | (4) 4M x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 20MB | (4) 1M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 20MB | (4) 4M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 64MB | (4) 16M x 9 | None |
|------------------+--------------------+--------------------|
| 65MB | (4) 256K x 9 | (4) 16M x 9 |
|------------------+--------------------+--------------------|
| 65MB | (4) 16M x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 68MB | (4) 1M x 9 | (4) 16M x 9 |
|------------------+--------------------+--------------------|
| 68MB | (4) 16M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 80MB | (4) 4M x 9 | (4) 16M x 9 |
|------------------+--------------------+--------------------|
| 80MB | (4) 16M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 128MB | (4) 16M x 9 | (4) 16M 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 | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP7 | JP8 |
|------------------+--------------------+--------------------|
| 64KB | Pins 2 & 3 closed | Pins 2 & 4 closed |
|------------------+--------------------+--------------------|
| 128KB | Pins 1 & 2 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 256KB | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
|Speed | ID3 | JP5 | JP5A | JP33 | JP36 | JP37 |JP38 | JP72 |
|------+------+-----+------+------+------+------+-----+------|
|25MHz | Open |2 & 3|4 & 5 |2 & 4 |Closed|1 & 2 |2 & 3|Closed|
|------+------+-----+------+------+------+------+-----+------|
|33MHz | Open |2 & 3|4 & 5 |2 & 4 |Closed|2 & 3 |1 & 2| Open |
|------+------+-----+------+------+------+------+-----+------|
|40MHz |Closed|1 & 2|3 & 5 |2 & 3 | Open |1 & 2 |2 & 3| Open |
|------+------+-----+------+------+------+------+-----+------|
|50iMHz| Open |2 & 3|4 & 5 |2 & 4 |Closed|1 & 2 |2 & 3|Closed|
|------+------+-----+------+------+------+------+-----+------|
|50MHz |Closed|1 & 2| N/A |1 & 2 | Open |2 & 3 |1 & 2| Open |
|------+------+-----+------+------+------+------+-----+------|
|66iMHz| Open |2 & 3|4 & 5 |2 & 4 |Closed|2 & 3 |1 & 2| Open |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. If |
|using a PGA CPU, use JP5 settings. If a PQFP CPU is |
|installed, use JP5A settings. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP2 | JP3 | JP4 |
|---------------+----------------------+------------+--------|
| 80486SX | Open | Open | Open |
| (PQFP) | | | |
|---------------+----------------------+------------+--------|
| 80486SX (PGA) | Pins 2 & 3 closed | Open | Open |
|---------------+----------------------+------------+--------|
| 80487SX | Pins 1 & 2, 3 & 4 | Pins 1 & 2 | Closed |
| | closed | closed | |
|---------------+----------------------+------------+--------|
| 80486DX | Pins 1 & 2, 3 & 4 | Pins 2 & 3 | Open |
| | closed | closed | |
|---------------+----------------------+------------+--------|
| 80486DX2 | Pins 1 & 2, 3 & 4 | Pins 2 & 3 | Open |
| | closed | closed | |
|---------------+----------------------+------------+--------|
| P24C | Pins 1 & 2, 3 & 4 | Pins 1 & 2 | Closed |
| | closed | closed | |
|---------------+----------------------+------------+--------|
| P24T | Pins 1 & 2, 3 & 4 | Pins 1 & 2 | Closed |
| | closed | closed | |
|------------------------------------------------------------|
| Note: The location of the PQFP is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP2A |
|----------------------------+-------------------------------|
| Cyrix | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| AMD | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| Intel | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VL BUS WAIT STATE SELECTION |
|------------------------------------------------------------|
| Setting | ID2 |
|-------------------------------+----------------------------|
| 0 | Open |
|-------------------------------+----------------------------|
| 1 | Closed |
+------------------------------------------------------------+