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# UNIDENTIFIED
VEGA VS486F-3VL
Processor 80486SX/80486DX/80486DX2/ODP586SX
Processor Speed 25/33/50(internal)/50/66(internal) MHz
Chip Set Symphony
Max. Onboard DRAM 32MB
SRAM Cache 64/256/1024KB
BIOS AMI
Dimensions 330mm x 218mm
I/O Options 32-bit VESA local bus slots (3)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| External battery | J1 | Turbo LED | JP23 |
|-------------------+----------+------------------+----------|
| Power LED & | JP20 | Turbo switch | JP24 |
| keylock | | | |
|-------------------+----------+------------------+----------|
| Speaker | JP21 | 32-bit VESA | S1, S2 & |
| | | Local bus slots | S3 |
|-------------------+----------+------------------+----------|
| Reset switch | JP22 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | CMOS memory normal operation | J2 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | J2 | pins 3 & 4 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | BIOS type select regular | JP2 | pins 1 & 2 |
| | (27C512) | | closed |
|---+----------------------------------+--------+------------|
| | BIOS type select flash | JP2 | pins 2 & 3 |
| | (28F001BX) | | closed |
|---+----------------------------------+--------+------------|
| » | Batterly select internal | JP3 | Closed |
|---+----------------------------------+--------+------------|
| | Battery select external | JP3 | Open |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP12 | Closed |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP15 | Open |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|------------------+--------------------+--------------------|
| 17MB | (4) 256K x 9 | (4) 4M 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP8 | JP9 | JP19 | JP25 | JP26 |
|-------+------------+----------+----------+--------+--------|
| 64KB | pins 1 & 2 | pins 1 & | pins 1 & | pins 1 | pins 1 |
| | | 2 | 2 | & 2 | & 2 |
|-------+------------+----------+----------+--------+--------|
| 256KB | pins 1 & 2 | pins 1 & | pins 2 & | pins 2 | pins 2 |
| | | 2 | 3 | & 3 | & 3 |
|-------+------------+----------+----------+--------+--------|
| 1MB | pins 2 & 3 | pins 2 & | pins 2 & | pins 2 | pins 2 |
| | | 3 | 3 | & 3 | & 3 |
|------------------------------------------------------------|
| Note:Pins designated should be in the closed postion. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Max Cachable | Cache | TAG |
|------------+---------------+---------------+---------------|
| 64KB | 8MB | (8) 8K x 8 | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | 32MB | (8) 32K x 8 | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 1MB | 64MB | (8) 128K x 8 | (1) 128K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| CPU | JP7 | JP10 | JP17 |
|---------------+------------+-------------------+-----------|
| 80486SX | Open | pins 2 & 3 closed | Open |
|---------------+------------+-------------------+-----------|
| All others | Closed | pins 1 & 2 closed | Closed |
+------------------------------------------------------------+
+-------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|-------------------------------------------------------------|
|Speed |JA1|JP4| JP5 | JP6 |JP11| JP13 | JP14 | JP16 | JP18 |
|------+---+---+------+------+----+------+------+------+------|
|25/50i|2 &|2 &| Open |Closed|2 & | Open |Closed| Open | Open |
| MHz | 3 | 3 | | | 3 | | | | |
|------+---+---+------+------+----+------+------+------+------|
|33/66i|2 &|2 &|Closed| Open |2 & | Open |Closed| Open | Open |
| MHz | 3 | 3 | | | 3 | | | | |
|------+---+---+------+------+----+------+------+------+------|
|50MHz |1 &|1 &| Open |Closed|1 & |Closed| Open |Closed|Closed|
| | 2 | 2 | | | 2 | | | | |
|-------------------------------------------------------------|
|Note:Pins designated should be in the closed postion. |
+-------------------------------------------------------------+