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# MYLEX CORPORATION
MVE486
Processor 80486SX/80487SX/80486DX/ODP486SX/80486DX2
Processor 20/25/33/50(internal)/50/66(internal)MHz
Speed
Chip Set OPTI
Max. Onboard 128MB
DRAM
Cache 64/128/256KB
BIOS MYLEX
Dimensions 330mm x 218mm
I/O Options 32-bit VESA local bus slots (2), floppy drive
interface,
IDE interface, parallel port, serial ports (2)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------+----------+----------------------+----------|
| Serial port 1 | COM1 | Speaker | P19 |
|---------------+----------+----------------------+----------|
| Serial port 2 | COM2 | Power LED & keylock | P20 |
|---------------+----------+----------------------+----------|
| Parallel port | P4 | IDE interface LED | P21 |
|---------------+----------+----------------------+----------|
| Floppy drive | P5 | Turbo LED | P23 |
| interface | | | |
|---------------+----------+----------------------+----------|
| IDE interface | P8 | 32-bit VESA Local | S1 |
| port | | bus slot | |
|---------------+----------+----------------------+----------|
| Reset switch | P18 | 32-bit VESA Local | S2 |
| | | bus slot | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|-------------------------------+--------+-------------------|
| » | Factory configured - do | J1 | On |
| | not alter | | |
|---+---------------------------+--------+-------------------|
| » | Factory configured - do | J2 | pins 2 & 3 closed |
| | not alter | | |
|---+---------------------------+--------+-------------------|
| » | Factory configured - do | J3 | pins 1 & 2 closed |
| | not alter | | |
|---+---------------------------+--------+-------------------|
| » | Factory configured - do | J4 | Open |
| | not alter | | |
|---+---------------------------+--------+-------------------|
| » | Factory configured - do | J8 | Closed |
| | not alter | | |
|---+---------------------------+--------+-------------------|
| » | Factory configured - do | J12 | Closed |
| | not alter | | |
|---+---------------------------+--------+-------------------|
| » | Factory configured - do | J16 | Closed |
| | not alter | | |
|---+---------------------------+--------+-------------------|
| » | Factory configured - do | J17 | Closed |
| | not alter | | |
|---+---------------------------+--------+-------------------|
| » | Factory configured - do | J19 | Closed |
| | not alter | | |
|---+---------------------------+--------+-------------------|
| » | Factory configured - do | J21 | Closed |
| | not alter | | |
|---+---------------------------+--------+-------------------|
| » | Factory configured - do | J23 | Closed |
| | not alter | | |
|---+---------------------------+--------+-------------------|
| » | Factory configured - do | J30 | Open |
| | not alter | | |
|---+---------------------------+--------+-------------------|
| » | Monitor type select color | P1 | Closed |
|---+---------------------------+--------+-------------------|
| | Monitor type select | P1 | Open |
| | monochrome | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Max | Bank 0 | Bank 1 | TAG 0 | TAG 1 |
| | Cachable | | | | |
|-------+------------+----------+----------+--------+--------|
| 64KB | 16MB | (4) 8K x | (4) 8K x | (1) 8K | NONE |
| | | 8 | 8 | x 8 | |
|-------+------------+----------+----------+--------+--------|
| 128KB | 32MB | (4) 32K | NONE | (1) 8K | NONE |
| | | x 8 | | x 8 | |
|-------+------------+----------+----------+--------+--------|
| 256KB | 63MB | (4) 32K | (4) 32K | (1) 8K | (1) 8K |
| | | x 8 | x 8 | x 8 | x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J11 | J18 | J20 | J22 | J24 |
|-------+----------------+--------+--------+--------+--------|
| 64KB | pins 2 & 3 | Open | Open | Open | Open |
| | closed | | | | |
|-------+----------------+--------+--------+--------+--------|
| 128KB | pins 1 & 2 | Open | Closed | Open | Closed |
| | closed | | | | |
|-------+----------------+--------+--------+--------+--------|
| 256KB | pins 2 & 3 | Closed | Closed | Closed | Closed |
| | closed | | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | J7 | J13 |
|----------+-----------------------------+-------------------|
| 80486SX | pins 2 & 3 closed | Open |
|----------+-----------------------------+-------------------|
| 80487SX | pins 1 & 2 and 3 & 4 closed | pins 1 & 2 closed |
|----------+-----------------------------+-------------------|
| 80486DX | pins 1 & 2 and 3 & 4 closed | pins 2 & 3 closed |
|----------+-----------------------------+-------------------|
| ODP486SX | pins 1 & 2 and 3 & 4 closed | pins 1 & 2 closed |
|----------+-----------------------------+-------------------|
| 80486DX2 | pins 1 & 2 and 3 & 4 closed | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | J5 | J6 | J25 | J26 | J27 | J28 | J29 |
|-------+--------+--------+------+------+------+------+------|
| 20MHz |pins 1 &|pins 1 &| Open | Open |Closed| Open | Open |
| | 2 | 2 | | | | | |
|-------+--------+--------+------+------+------+------+------|
| 25MHz |pins 2 &|pins 1 &|Closed| Open | Open | Open |Closed|
| | 3 | 2 | | | | | |
|-------+--------+--------+------+------+------+------+------|
| 33MHz |pins 2 &|pins 1 &| Open |Closed| Open | Open |Closed|
| | 3 | 2 | | | | | |
|-------+--------+--------+------+------+------+------+------|
|50i MHz|pins 2 &|pins 1 &|Closed| Open | Open | Open |Closed|
| | 3 | 2 | | | | | |
|-------+--------+--------+------+------+------+------+------|
| 50MHz |pins 2 &|pins 2 &|Closed|Closed| Open |Closed|Closed|
| | 3 | 3 | | | | | |
|-------+--------+--------+------+------+------+------+------|
|66i MHz|pins 2 &|pins 1 &| Open |Closed| Open | Open |Closed|
| | 3 | 2 | | | | | |
|------------------------------------------------------------|
|Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LOCAL BUS ENABLE JUMPERS |
|------------------------------------------------------------|
| Setting | J9 | J10 | J14 | J15 |
|----------+------------+------------+-----------+-----------|
| Enabled | pins 2 & 3 | pins 2 & 3 | pins 2 & | pins 2 & |
| | | | 3 | 3 |
|----------+------------+------------+-----------+-----------|
| Disabled | pins 1 & 2 | pins 1 & 2 | pins 1 & | pins 1 & |
| | | | 2 | 2 |
|------------------------------------------------------------|
| Note:Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 512K x | None | None | None |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 512K x | (1) 512K x | None | None |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 1M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 512K x | (1) 1M x 36 | None | None |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 512K x | (1) 512K x | (1) 512K x | None |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 2M x 36 | (1) 2M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 512K x | (1) 512K x | (1) 512K x | (1) 512K x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 512K x | (1) 2M x 36 | None | None |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 2M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 512K x | (1) 512K x | (1) 2M x | None |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 14MB | (1) 512K x | (1) 1M x 36 | (1) 2M x | None |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | (1) 2M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 4M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 2M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 512K x | (1) 2M x 36 | (1) 2M x | None |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 512K x | (1) 512K x | (1) 2M x | (1) 2M x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 1M x 36 | (1) 2M x 36 | (1) 2M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 22MB | (1) 512K x | (1) 1M x 36 | (1) 2M x | (1) 2M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 2M x | (1) 2M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 26MB | (1) 512K x | (1) 2M x 36 | (1) 2M x | (1) 2M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 28MB | (1) 1M x 36 | (1) 2M x 36 | (1) 2M x | (1) 2M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 8M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x | (1) 2M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 2M x 36 | (1) 2M x 36 | (1) 4M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 1M x 36 | (1) 1M x 36 | (1) 8M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 48MB | (1) 2M x 36 | (1) 2M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 48MB | (1) 2M x 36 | (1) 2M x 36 | (1) 8M x | None |
| | | | 36 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CONT.) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 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 |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x | (1) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 72MB | (1) 1M x 36 | (1) 1M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 80MB | (1) 2M x 36 | (1) 2M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 4M x 36 | (1) 4M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
+------------------------------------------------------------+