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# UNIDENTIFIED
3VLG-A486
Processor CX486M6/80486SX/SL80486SX/80487SX/CX486M7/AM486DXL/80486DX/
SL80486DX2/80486DX2/Pentium Overdrive
Processor 25/33/40/50(internal)/50/66(internal)MHz
Speed
Chip Set Unidentified
Max. 80MB
Onboard
DRAM
Cache 32/64/128/256KB
BIOS AMI
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 |
|--------------------+----------+-----------------+----------|
| Modem ring in | JG8 | Speaker | JP17 |
| signal interface | | | |
|--------------------+----------+-----------------+----------|
| Green PC connector | JG9 | Turbo switch | JP18 |
|--------------------+----------+-----------------+----------|
| Green PC connector | JG11 | Turbo LED | JP19 |
| (monitor) | pins 5 & | | |
| | 6 | | |
|--------------------+----------+-----------------+----------|
| Green PC connector | JG11 | Reset switch | JP20 |
| (fan) | pins 7 & | | |
| | 8 | | |
|--------------------+----------+-----------------+----------|
| External battery | JP1 | 32-bit VESA | SL1 - |
| | | local bus slots | SL3 |
|--------------------+----------+-----------------+----------|
| Power LED & | JP16 | | |
| keylock | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|------------------------------------+--------+--------------|
| » | CX487S not installed | J2 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | CX487S installed | J2 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| » | Monitor type select monochrome | JP6 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | Monitor type select color | JP6 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| » | CMOS memory normal operation | JP33 | Open |
|---+--------------------------------+--------+--------------|
| | CMOS memory clear | JP33 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0/1 | Bank 0/1 | Bank 1 |
|------------+---------------+---------------+---------------|
| 1MB | (4) 256K x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 1MB | NONE | (1) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 2MB | (4) 256K x 9 | (1) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 2MB | NONE | (1) 256K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 4MB | (4) 1M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 4MB | NONE | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 5MB | (4) 256K x 9 | NONE | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 5MB | NONE | (1) 1M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 8MB | (4) 1M x 9 | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 8MB | NONE | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 16MB | (4) 4M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 16MB | NONE | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 32MB | (4) 4M x 9 | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 32MB | NONE | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 64MB | (4) 16M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 80MB | (4) 16M x 9 | (1) 4M x 36 | NONE |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP39 | JP40 | JP41 | JP42 |
|----------------------------+-------+-------+-------+-------|
| Bank 0 = 30-pin | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 |
|----------------------------+-------+-------+-------+-------|
| Bank 1 = 72-pin | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 |
|----------------------------+-------+-------+-------+-------|
| Bank 0 = Bank 0/1 72-pin | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 |
|----------------------------+-------+-------+-------+-------|
| Bank 1 = 30-pin or Bank 1 | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 |
| 72 pin | | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 32KB | (4) 8K x 8 | NONE | (1) 8K x 8 |
|------------+---------------+---------------+---------------|
| 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) 16K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JG19 | JG20 | JP11 | JP12 | JP13 | JP31 |
|-------+-------+--------+----------+-------+-------+--------|
| 32KB | 1 & 2 | Closed | Open | 2 & 3 | 2 & 3 | Open |
|-------+-------+--------+----------+-------+-------+--------|
| 64KB | 1 & 2 | Closed | Open | 1 & 2 | 1 & 2 | Closed |
|-------+-------+--------+----------+-------+-------+--------|
| 128KB | 1 & 2 | Closed | 1 & 2, 3 | 2 & 3 | 1 & 2 | Closed |
| | | | & 4 | | | |
|-------+-------+--------+----------+-------+-------+--------|
| 256KB | 2 & 3 | Open | 1 & 2, 3 | 1 & 2 | 1 & 2 | Closed |
| | | | & 4, 5 & | | | |
| | | | 6 | | | |
|-------+-------+--------+----------+-------+-------+--------|
| 256KB | 1 & 2 | Closed | 1 & 2, 3 | 1 & 2 | 1 & 2 | Closed |
| | | | & 4, 5 & | | | |
| | | | 6 | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JG1 | JG2 | JG3 | JG4 | JG5 |
|-------------+----------+----------+--------+-------+-------|
| CX486M6 1x | Closed | Open | 1 & 2 | 2 & 4 | 2 & 4 |
|-------------+----------+----------+--------+-------+-------|
| CX486M6 2x | Closed | Open | 1 & 2 | 2 & 4 | 2 & 4 |
|-------------+----------+----------+--------+-------+-------|
| 80486SX | Open | Open | Open | Open | Open |
|-------------+----------+----------+--------+-------+-------|
| SL80486SX | Open | Closed | 2 & 3 | 1 & 2 | 1 & 2 |
|-------------+----------+----------+--------+-------+-------|
| 80487SX | Open | Open | Open | Open | Open |
|-------------+----------+----------+--------+-------+-------|
| CX486M7 1x | Closed | Open | 1 & 2 | 2 & 4 | 2 & 4 |
|-------------+----------+----------+--------+-------+-------|
| CX486M7 2x | Closed | Open | 1 & 2 | 2 & 4 | 2 & 4 |
|-------------+----------+----------+--------+-------+-------|
| AM486DXL | Open | Open | Open | 2 & 3 | 2 & 3 |
|-------------+----------+----------+--------+-------+-------|
| 80486DX | Open | Open | Open | Open | Open |
|-------------+----------+----------+--------+-------+-------|
| SL80486DX | Open | Closed | 2 & 3 | 1 & 2 | 1 & 2 |
|-------------+----------+----------+--------+-------+-------|
| 80486DX2 | Open | Open | Open | Open | Open |
|-------------+----------+----------+--------+-------+-------|
| SL80486DX2 | Open | Closed | 2 & 3 | 1 & 2 | 1 & 2 |
|-------------+----------+----------+--------+-------+-------|
| P24T | Open | Open | Open | 2 & 3 | 2 & 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JG6 | JP8 | JP9 | JP10 | JP21 |
|-------------+---------+---------+---------+--------+-------|
| CX486M6 1x | Open | Closed | Open | Closed | 3 & 4 |
|-------------+---------+---------+---------+--------+-------|
| CX486M6 2x | Closed | Closed | Open | Closed | 3 & 4 |
|-------------+---------+---------+---------+--------+-------|
| 80486SX | Open | Closed | Closed | Open | 3 & 4 |
|-------------+---------+---------+---------+--------+-------|
| SL80486SX | Open | Closed | Closed | Open | 3 & 4 |
|-------------+---------+---------+---------+--------+-------|
| 80487SX | Open | Closed | Closed | Open | 1 & 2 |
|-------------+---------+---------+---------+--------+-------|
| CX486M7 1x | Open | Closed | Open | Open | 2 & 3 |
|-------------+---------+---------+---------+--------+-------|
| CX486M7 2x | Closed | Closed | Open | Open | 2 & 3 |
|-------------+---------+---------+---------+--------+-------|
| AM486DXL | Open | Closed | Closed | Open | 2 & 3 |
|-------------+---------+---------+---------+--------+-------|
| 80486DX | Open | Closed | Closed | Open | 2 & 3 |
|-------------+---------+---------+---------+--------+-------|
| SL80486DX | Open | Closed | Closed | Open | 2 & 3 |
|-------------+---------+---------+---------+--------+-------|
| 80486DX2 | Open | Closed | Closed | Open | 2 & 3 |
|-------------+---------+---------+---------+--------+-------|
| SL80486DX2 | Open | Closed | Closed | Open | 2 & 3 |
|-------------+---------+---------+---------+--------+-------|
| P24T | Open | Open | Closed | Open | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP22 | JP23 | JP24 | JP26 | JP27 |
|-------------+----------+----------+--------+-------+-------|
| CX486M6 1x | Open | Open | 1 & 2 | 1 & 2 | 1 & 2 |
|-------------+----------+----------+--------+-------+-------|
| CX486M6 2x | Open | Open | 1 & 2 | 1 & 2 | 1 & 2 |
|-------------+----------+----------+--------+-------+-------|
| 80486SX | Closed | Closed | 1 & 2 | 1 & 2 | 1 & 2 |
|-------------+----------+----------+--------+-------+-------|
| SL80486SX | Closed | Closed | 1 & 2 | 2 & 3 | 1 & 2 |
|-------------+----------+----------+--------+-------+-------|
| 80487SX | Closed | Closed | 2 & 3 | 1 & 2 | 1 & 2 |
|-------------+----------+----------+--------+-------+-------|
| CX486M7 1x | Closed | Closed | 2 & 3 | 2 & 3 | 1 & 2 |
|-------------+----------+----------+--------+-------+-------|
| CX486M7 2x | Closed | Closed | 2 & 3 | 2 & 3 | 1 & 2 |
|-------------+----------+----------+--------+-------+-------|
| AM486DXL | Closed | Closed | 2 & 3 | 1 & 2 | 1 & 2 |
|-------------+----------+----------+--------+-------+-------|
| 80486DX | Closed | Closed | 2 & 3 | 1 & 2 | 1 & 2 |
|-------------+----------+----------+--------+-------+-------|
| SL80486DX | Closed | Closed | 2 & 3 | 2 & 3 | 1 & 2 |
|-------------+----------+----------+--------+-------+-------|
| 80486DX2 | Closed | Closed | 2 & 3 | 1 & 2 | 1 & 2 |
|-------------+----------+----------+--------+-------+-------|
| SL80486DX2 | Closed | Closed | 2 & 3 | 2 & 3 | 1 & 2 |
|-------------+----------+----------+--------+-------+-------|
| P24T | Closed | Closed | 2 & 3 | 1 & 2 | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SMI CONFIGURATION |
|------------------------------------------------------------|
| Type | JG12 |
|----------------------------+-------------------------------|
| Cyrix | pins 5 & 6 closed |
|----------------------------+-------------------------------|
| Texas Instruments | pins 1 & 2, 5 & 6 closed |
|----------------------------+-------------------------------|
| AMD | pins 3 & 4 closed |
|----------------------------+-------------------------------|
| Intel S-series | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| Intel | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JG13 | JP7 | JP15 | JP32 |
|-----------+----------------+----------+----------+---------|
| 25MHz | 1 & 2, 5 & 6 | 1 & 2 | 2 & 3 | 2 & 3 |
|-----------+----------------+----------+----------+---------|
| 33MHz | 1 & 2, 3 & 4 | 1 & 2 | 2 & 3 | 2 & 3 |
|-----------+----------------+----------+----------+---------|
| 40MHz | 3 & 4, 5 & 6 | 2 & 3 | 1 & 2 | 1 & 2 |
|-----------+----------------+----------+----------+---------|
| 50iMHz | 1 & 2, 5 & 6 | 1 & 2 | 2 & 3 | 2 & 3 |
|-----------+----------------+----------+----------+---------|
| 50MHz | 1 & 2, 5 & 6 | 2 & 3 | 1 & 2 | 1 & 2 |
|-----------+----------------+----------+----------+---------|
| 66iMHz | 1 & 2, 3 & 4 | 1 & 2 | 2 & 3 | 2 & 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BUS SPEED CONFIGURATION |
|------------------------------------------------------------|
| CPU speed | JP28 | JP29 |
|------------------+--------------------+--------------------|
| <= 33MHz | pins 1 & 2 closed | pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| > 33MHz | pins 2 & 3 closed | pins 2 & 3 closed |
+------------------------------------------------------------+