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# DASH COMPUTER, INC.
486 VL3 CACHE (MV035E)
Device Mainboard
Type
Processor 80486SX/80487SX/80486DX/CX M6/CX M7/P24C/P24D/P24T
Processor 25/33/40/50(internal)/50/66(internal)/100(internal)MHz
Speed
Chip Set OPTI
Video Chip None
Set
Maximum 128MB
Onboard
Memory
Maximum None
Video
Memory
Cache 64/128/256/512KB
BIOS Award
Dimensions 250mm x 220mm
I/O 32-bit VESA local bus slots (3), green PC connector
Options
NPU None
Options
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| External battery | J2 | Speaker | JP38 |
|-------------------+----------+------------------+----------|
| Power LED & | J22 | Green PC | JP39 |
| keylock | | connector | |
|-------------------+----------+------------------+----------|
| Green PC | JP6 | Green PC LED | JP41 |
| connector | | | |
|-------------------+----------+------------------+----------|
| Turbo LED | JP34 | Reset switch | S1 |
|-------------------+----------+------------------+----------|
| Turbo switch | JP36 | 32-bit VESA | SL1 – |
| | | local bus slots | SL3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|---------------------------------------+-------+------------|
| | Monitor type select color | JP1 | Closed |
|---+-----------------------------------+-------+------------|
| | Monitor type select monochrome | JP1 | Open |
|---+-----------------------------------+-------+------------|
| » | CMOS memory normal operation | JP2 | Pins 2 & 3 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| | CMOS memory clear | JP2 | Pins 1 & 2 |
| | | | closed |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | JP7 | Closed |
|---+-----------------------------------+-------+------------|
| » | Factory configured - do not alter | JP31 | Pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION 1 |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 1MB | (4) 256K x | None | None | None |
| | 9 | | | |
|-------+-------------+------------+------------+------------|
| 2MB | (4) 256K x | (1) 256K x | None | None |
| | 9 | 36 | | |
|-------+-------------+------------+------------+------------|
| 4MB | (4) 1M x 9 | None | None | None |
|-------+-------------+------------+------------+------------|
| 4MB | (4) 256K x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 9 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 5MB | (4) 256K x | (1) 1M x | None | None |
| | 9 | 36 | | |
|-------+-------------+------------+------------+------------|
| 6MB | (4) 256K x | (1) 256K x | (1) 1M x | None |
| | 9 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 8MB | (4) 1M x 9 | (1) 1M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 8MB | (4) 1M x 9 | None | (1) 1M x | None |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 10MB | (4) 256K x | (1) 256K x | (1) 1M x | (1) 1M x |
| | 9 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 12MB | (4) 1M x 9 | None | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 16MB | (4) 4M x 9 | None | None | None |
|-------+-------------+------------+------------+------------|
| 16MB | (4) 1M x 9 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 17MB | (4) 256K x | (1) 4M x | None | None |
| | 9 | 36 | | |
|-------+-------------+------------+------------+------------|
| 20MB | (4) 1M x 9 | (1) 4M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 20MB | (4) 1M x 9 | None | (1) 4M x | None |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 32MB | (4) 4M x 9 | (1) 4M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 64MB | (4) 4M x 9 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 80MB | (4) 4M x 9 | (1) 16M x | None | None |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 96MB | (4) 4M x 9 | (1) 16M x | (1) 4M x | None |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 112MB | (4) 4M x 9 | (1) 16M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION 2 |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+--------+--------------+--------------+-------------|
| 1MB | None | (1) 256K x | None | None |
| | | 36 | | |
|-------+--------+--------------+--------------+-------------|
| 4MB | None | (1) 1M x 36 | None | None |
|-------+--------+--------------+--------------+-------------|
| 8MB | None | (1) 1M x 36 | (1) 1M x 36 | None |
|-------+--------+--------------+--------------+-------------|
| 12MB | None | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
|-------+--------+--------------+--------------+-------------|
| 16MB | None | (1) 4M x 36 | None | None |
|-------+--------+--------------+--------------+-------------|
| 20MB | None | (1) 1M x 36 | (1) 4M x 36 | None |
|-------+--------+--------------+--------------+-------------|
| 32MB | None | (1) 4M x 36 | (1) 4M x 36 | None |
|-------+--------+--------------+--------------+-------------|
| 64MB | None | (1) 16M x 36 | None | None |
|-------+--------+--------------+--------------+-------------|
| 80MB | None | (1) 16M x 36 | (1) 4M x 36 | None |
|-------+--------+--------------+--------------+-------------|
| 96MB | None | (1) 16M x 36 | (1) 4M x 36 | (1) 4M x 36 |
|-------+--------+--------------+--------------+-------------|
| 72MB | None | (1) 16M x 36 | (1) 1M x 36 | (1) 1M x 36 |
|-------+--------+--------------+--------------+-------------|
| 128MB | None | (1) 16M x 36 | (1) 16M x 36 | None |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Configuration | JP5 |
|----------------------------+-------------------------------|
| 1 | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 2 | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 (A) | (4) 32K x 8 | (4) 32K x 8 | (1) 16K x 8 |
|-------------+---------------+---------------+--------------|
| 256KB (B) | (2) 64K x 32 | None | (1) 32K x 8 |
|-------------+---------------+---------------+--------------|
| 512KB | (4) 128K x 8 | None | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP8 | JP27 | JP28 | JP43 | JP44 |
|------------+---------+----------+---------+--------+-------|
| 64KB | 2 & 3 | Open | Open | Open | 1 & 2 |
|------------+---------+----------+---------+--------+-------|
| 128KB | 1 & 2 | Closed | Open | Open | 1 & 2 |
|------------+---------+----------+---------+--------+-------|
| 256KB (A) | 2 & 3 | Closed | Closed | Open | 2 & 3 |
|------------+---------+----------+---------+--------+-------|
| 256KB (B) | 2 & 3 | Closed | Closed | Open | 1 & 2 |
|------------+---------+----------+---------+--------+-------|
| 512KB | 1 & 2 | Closed | Closed | Closed | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| Speed | JP16 | JP17 | JP18 |
|---------------+-------------+---------------+--------------|
| 25MHz | Open | Open | Open |
|---------------+-------------+---------------+--------------|
| 33MHz | Open | Closed | Closed |
|---------------+-------------+---------------+--------------|
| 40MHz | Open | Closed | Open |
|---------------+-------------+---------------+--------------|
| 50iMHz | Open | Open | Open |
|---------------+-------------+---------------+--------------|
| 50MHz | Open | Open | Closed |
|---------------+-------------+---------------+--------------|
| 66iMHz | Open | Closed | Closed |
|---------------+-------------+---------------+--------------|
| 100iMHz | Open | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP9 |JP11 |JP12 |JP13 | JP15 | JP23 |JP32 |
|--------+-------+-----+-----+-----+------+------------+-----|
|80486SX | Open |1 & 2|Open |Open | Open | 2 & 3 |Open |
|--------+-------+-----+-----+-----+------+------------+-----|
|80487SX | Open |1 & 2|Open |2 & 3| Open |1 & 2, 3 & 4|Open |
|--------+-------+-----+-----+-----+------+------------+-----|
|80486DX | Open |1 & 2|Open |1 & 2| Open |1 & 2, 3 & 4|Open |
|--------+-------+-----+-----+-----+------+------------+-----|
| CX M6 |Closed |2 & 3|2 & 3|Open | Open | 2 & 3 |1 & 2|
|--------+-------+-----+-----+-----+------+------------+-----|
| CX M7 |Closed |2 & 3|2 & 3|1 & 2| Open |1 & 2, 3 & 4|Open |
|--------+-------+-----+-----+-----+------+------------+-----|
| P24C | Open |1 & 2|Open |1 & 2| Open |1 & 2, 3 & 4|Open |
|--------+-------+-----+-----+-----+------+------------+-----|
| P24D | Open |2 & 3|Open |1 & 2|Closed|1 & 2, 3 & 4|2 & 3|
|--------+-------+-----+-----+-----+------+------------+-----|
| P24T | Open |2 & 3|Open |1 & 2| Open |1 & 2, 3 & 4|Open |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (SL/NON-SL CPU) |
|------------------------------------------------------------|
| Type | JP10 | JP12 | JP20 | JP21 |
|-----------------+--------+---------------+--------+--------|
| SL-enhanced | Open | Open | Open | Open |
|-----------------+--------+---------------+--------+--------|
| Non SL-enhanced | Closed | Pins 1 & 2 | Closed | Closed |
| | | closed | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (CX M7) |
|------------------------------------------------------------|
| Type | JP22 |
|-------------------------------+----------------------------|
| All CPU types | Open |
|-------------------------------+----------------------------|
| CX M7 2x | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (P24D ONLY) |
|------------------------------------------------------------|
| Type | JP19 |
|----------------------------+-------------------------------|
| Write through | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| Write back | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU MULTIPLIER SELECTION (80486DX4 ONLY) |
|------------------------------------------------------------|
| Multiplier | JP30 |
|----------------------------+-------------------------------|
| 2x | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 2.5x | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 3x | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JP29 |
|----------------------------+-------------------------------|
| 3.45v | Pins 3 & 5, 4 & 6 closed |
|----------------------------+-------------------------------|
| 5v | Pins 1 & 3, 2 & 4 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VL BUS WAIT STATE SELECTION |
|------------------------------------------------------------|
| Setting | JP35 |
|-------------------------------+----------------------------|
| 0 | Open |
|-------------------------------+----------------------------|
| 1 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VL BUS SPEED SELECTION |
|------------------------------------------------------------|
| Speed | JP33 | JP37 |
|--------------------+--------------------+------------------|
| <= 33MHz | Pins 2 & 3 closed | Open |
|--------------------+--------------------+------------------|
| >33 MHz | Pins 1 & 2 closed | Closed |
+------------------------------------------------------------+