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# ELISA TECHNOLOGY, INC.
LM-486EISA (BASEBOARD)
Processor 80486SX/80487SX/80486DX/80486DX2
Processor Speed 16/20/25/33/50(internal)/66(internal)MHz
Chip Set OPTI
Max. Onboard 128MB
DRAM
Cache 256KB
BIOS AMI
Dimensions 330mm x 225mm
I/O Options CPU expansion card slot, 32-bit VESA local
bus slots (2)
NPU Options 4167
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------+----------+----------------------+----------|
| Speaker | J1 | Reset switch | S1 |
|---------------+----------+----------------------+----------|
| Power LED & | J2 | CPU expansion card | S2 |
| keylock | | | |
|---------------+----------+----------------------+----------|
| Turbo switch | JP14 | 32-bit VESA local | S3 & S4 |
| | | bus slots | |
|---------------+----------+----------------------+----------|
| Turbo LED | JP15 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|-----------------------------------+-----------+------------|
| » | Factory configured - do not | BM1 | N/A |
| | alter | | |
|---+-------------------------------+-----------+------------|
| » | Factory configured - do not | BM2 | N/A |
| | alter | | |
|---+-------------------------------+-----------+------------|
| » | Factory configured - do not | JP1 - JP6 | Open |
| | alter | | |
|---+-------------------------------+-----------+------------|
| » | Factory configured - do not | JP2 | Open |
| | alter | | |
|---+-------------------------------+-----------+------------|
| » | Factory configured - do not | JP3 | Open |
| | alter | | |
|---+-------------------------------+-----------+------------|
| » | Factory configured - do not | JP4 | Open |
| | alter | | |
|---+-------------------------------+-----------+------------|
| » | Factory configured - do not | JP5 | Open |
| | alter | | |
|---+-------------------------------+-----------+------------|
| » | Factory configured - do not | JP6 | Open |
| | alter | | |
|---+-------------------------------+-----------+------------|
| » | Bus master on baseboard (U26) | JP7 | pins 1 & 2 |
| | enabled | | closed |
|---+-------------------------------+-----------+------------|
| | Bus master on baseboard (U26) | JP7 | pins 2 & 3 |
| | disabled | | closed |
|---+-------------------------------+-----------+------------|
| » | Monitor type select | JP8 | Open |
| | monochrome | | |
|---+-------------------------------+-----------+------------|
| | Monitor type select color | JP8 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 4MB | (4) 1M x 9 | NONE |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M 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 |
|------------------+--------------------+--------------------|
| 68MB | (4) 1M x 9 | (4) 16M x 9 |
|------------------+--------------------+--------------------|
| 80MB | (4) 4M x 9 | (4) 16M x 9 |
|------------------+--------------------+--------------------|
| 128MB | (4) 16M x 9 | (4) 16M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP9 | JP10 | JP11 |
|---------------+------------+-----------+-------------------|
| 80487SX-16 | Closed | Closed | pins 2 & 3 closed |
|---------------+------------+-----------+-------------------|
| 80487SX-20 | Closed | Closed | pins 2 & 3 closed |
|---------------+------------+-----------+-------------------|
| 80486SX-16 | Closed | Closed | pins 2 & 3 closed |
|---------------+------------+-----------+-------------------|
| 80486SX-20 | Closed | Closed | pins 2 & 3 closed |
|---------------+------------+-----------+-------------------|
| 80486SX-25 | Closed | Open | pins 1 & 2 closed |
|---------------+------------+-----------+-------------------|
| 80486DX-25 | Closed | Open | pins 1 & 2 closed |
|---------------+------------+-----------+-------------------|
| 80486DX-33 | Open | Open | pins 1 & 2 closed |
|---------------+------------+-----------+-------------------|
| 80486DX2-50 | Closed | Open | pins 1 & 2 closed |
|---------------+------------+-----------+-------------------|
| 80486DX2-66 | Open | Open | pins 1 & 2 closed |
+------------------------------------------------------------+
IMG IMG 2
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Factory configured - do not | JP2 | pins 2 & 3 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP4 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Bus master on CPU card enabled | JP5 | Open |
|---+----------------------------------+--------+------------|
| | Bus master on CPU card disabled | JP5 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank | TAG | Dirty | TAG | TAG |
| | | 1 | (U16) | bit | (U26) | (U27) |
| | | | | (U25) | | |
|-------+--------+-------+--------+--------+--------+--------|
| 64KB | (4) 8K | (4) | (1) | (1) 8K | NONE | (1) 8K |
| | x 8 | 8K x | 16K x | x 8 | | x 8 |
| | | 8 | 1 | | | |
|-------+--------+-------+--------+--------+--------+--------|
| 128KB | (4) | NONE | (1) | (1) 8K | NONE | (1) 8K |
| | 32K x | | 16K x | x 8 | | x 8 |
| | 8 | | 1 | | | |
|-------+--------+-------+--------+--------+--------+--------|
| 256KB | (4) | (4) | (1) | (1) 8K | (1) 8K | (1) 8K |
| | 32K x | 32K x | 16K x | x 8 | x 8 | x 8 |
| | 8 | 8 | 1 | | | |
|-------+--------+-------+--------+--------+--------+--------|
| 512KB | (4) | NONE | (1) | (1) 8K | NONE | (1) |
| | 128K x | | 64K x | x 8 | | 32K x |
| | 8 | | 1 | | | 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP6 | JP8 | JP9 | JP10 | JP11 | JP12 | JP13 |
|-------+-------+-------+-------+-------+------+------+------|
| 64KB | 2 & 3 | Open | Open | Open | Open | Open | Open |
|-------+-------+-------+-------+-------+------+------+------|
| 128KB | 1 & 2 |Closed | Open | Open |Closed| Open | Open |
|-------+-------+-------+-------+-------+------+------+------|
| 256KB | 2 & 3 |Closed |Closed | Open |Closed|Closed| Open |
|-------+-------+-------+-------+-------+------+------+------|
| 512KB | 1 & 2 |Closed |Closed |Closed |Closed|Closed|Closed|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP1 | JP3 | JP7 |
|-------------+------------------------+------------+--------|
| 80487SX-16 | pins 1 & 2, 3 & 4 | pins 1 & 2 | Closed |
| | closed | closed | |
|-------------+------------------------+------------+--------|
| 80487SX-20 | pins 1 & 2, 3 & 4 | pins 1 & 2 | Closed |
| | closed | closed | |
|-------------+------------------------+------------+--------|
| 80486SX-16 | pins 2 & 3 closed | Open | Closed |
|-------------+------------------------+------------+--------|
| 80486SX-20 | pins 2 & 3 closed | Open | Closed |
|-------------+------------------------+------------+--------|
| 80486SX-25 | pins 2 & 3 closed | Open | Open |
|-------------+------------------------+------------+--------|
| 80486DX-25 | pins 1 & 2, 3 & 4 | pins 2 & 3 | Open |
| | closed | closed | |
|-------------+------------------------+------------+--------|
| 80486DX-33 | pins 1 & 2, 3 & 4 | pins 2 & 3 | Open |
| | closed | closed | |
|-------------+------------------------+------------+--------|
| 80486DX2-50 | pins 1 & 2, 3 & 4 | pins 2 & 3 | Open |
| | closed | closed | |
|-------------+------------------------+------------+--------|
| 80486DX2-66 | pins 1 & 2, 3 & 4 | pins 2 & 3 | Open |
| | closed | closed | |
+------------------------------------------------------------+