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# M TECHNOLOGY, INC.
R407 VESA 486
Processor 80486SX/CX486DX/80486DX/CX486DX2/80486DX2/80486DX4/P24D/Pentium
Overdrive
Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set Unidentified
Max. 128MB
Onboard
DRAM
Cache 64/128/256/512/1024KB
BIOS AMI
Dimensions 330mm 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 |
|--------------------+----------+-----------------+----------|
| External battery | J2 | Reset switch | J7 |
|--------------------+----------+-----------------+----------|
| Power LED & | J3 | Green PC | J8 |
| keylock | | connector | |
|--------------------+----------+-----------------+----------|
| Speaker | J4 | Bus mouse port | JP60 |
|--------------------+----------+-----------------+----------|
| Turbo switch | J5 | Green PC | JP61 |
| | | connector | |
|--------------------+----------+-----------------+----------|
| Turbo LED | J6 | Green PC | SL1 - |
| | | connector | SL3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Factory configured - do not | JP43 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | JP50 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP50 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Monitor type select CGA | JP62 | Closed |
|---+----------------------------------+--------+------------|
| | Monitor type select | JP62 | Open |
| | monochrome/EGA/VGA | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (MODE 1) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 1MB | (4) 256K x | NONE | NONE | NONE |
| | 9 | | | |
|-------+-------------+------------+------------+------------|
| 2MB | (4) 256K x | (4) 256K x | NONE | NONE |
| | 9 | 9 | | |
|-------+-------------+------------+------------+------------|
| 4MB | (4) 1M x 9 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 5MB | (4) 256K x | (4) 1M x 9 | NONE | NONE |
| | 9 | | | |
|-------+-------------+------------+------------+------------|
| 6MB | (4) 256K x | (4) 256K x | (1) 1M x | NONE |
| | 9 | 9 | 36 | |
|-------+-------------+------------+------------+------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 10MB | (4) 256K x | (4) 256K x | (1) 1M x | (1) 1M x |
| | 9 | 9 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 12MB | (4) 1M x 9 | (4) 1M x 9 | (1) 1M x | NONE |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 16MB | (4) 1M x 9 | (4) 1M x 9 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 16MB | (4) 4M x 9 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 17MB | (4) 256K x | (4) 4M x 9 | NONE | (1) 1M x |
| | 9 | | | 36 |
|-------+-------------+------------+------------+------------|
| 18MB | (4) 256K x | (4) 256K x | (1) 4M x | NONE |
| | 9 | 9 | 36 | |
|-------+-------------+------------+------------+------------|
| 20MB | (4) 1M x 9 | (4) 4M x 9 | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 24MB | (4) 1M x 9 | (4) 1M x 9 | (1) 4M x | NONE |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 36MB | (4) 1M x 9 | (4) 4M x 9 | (1) 4M x | NONE |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 40MB | (4) 1M x 9 | (4) 1M x 9 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 48MB | (4) 4M x 9 | (4) 4M x 9 | (1) 4M x | NONE |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 64MB | (4) 4M x 9 | (4) 4M x 9 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 64MB | (4) 16M x 9 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 65MB | (4) 256K x | (4) 16M x | (1) 16M x | NONE |
| | 9 | 9 | 36 | |
|-------+-------------+------------+------------+------------|
| 68MB | (4) 1M x 9 | (4) 16M x | (1) 16M x | NONE |
| | | 9 | 36 | |
|-------+-------------+------------+------------+------------|
| 72MB | (4) 1M x 9 | (4) 1M x 9 | (1) 1M x | (1) 16M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 80MB | (4) 4M x 9 | (4) 16M x | (1) 16M x | NONE |
| | | 9 | 36 | |
|-------+-------------+------------+------------+------------|
| 96MB | (4) 4M x 9 | (4) 4M x 9 | (1) 4M x | (1) 16M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | (4) 16M x 9 | (4) 16M x | NONE | NONE |
| | | 9 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (MODE 2) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+------------+--------+---------------+---------------|
| 1MB | NONE | NONE | (1) 256K x 36 | NONE |
|------+------------+--------+---------------+---------------|
| 2MB | NONE | NONE | (1) 256K x 36 | (1) 256K x 36 |
|------+------------+--------+---------------+---------------|
| 2MB | NONE | NONE | (1) 512K x 36 | NONE |
|------+------------+--------+---------------+---------------|
| 4MB | NONE | NONE | (1) 512K x 36 | (1) 512K x 36 |
|------+------------+--------+---------------+---------------|
| 4MB | NONE | NONE | (1) 1M x 36 | NONE |
|------+------------+--------+---------------+---------------|
| 5MB | NONE | NONE | (1) 256K x 36 | (1) 1M x 36 |
|------+------------+--------+---------------+---------------|
| 6MB | (4) 1M x 9 | NONE | (1) 256K x 36 | (1) 256K x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (MODE 2 CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 6MB | NONE | NONE | (1) 512K x | (1) 1M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 8MB | (4) 1M x 9 | NONE | (1) 512K x | (1) 512K x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 8MB | NONE | NONE | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 8MB | NONE | NONE | (1) 2M x | NONE |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 10MB | (4) 1M x 9 | (4) 1M x 9 | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 12MB | (4) 1M x 9 | (4) 1M x 9 | (1) 512K x | (1) 512K x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 12MB | (4) 1M x 9 | NONE | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 12MB | NONE | NONE | (1) 1M x | (1) 2M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 16MB | (4) 1M x 9 | (4) 1M x 9 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 16MB | NONE | NONE | (1) 2M x | (1) 2M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 16MB | NONE | NONE | (1) 4M x | NONE |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 17MB | NONE | NONE | (1) 256K x | (1) 4M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 18MB | (4) 4M x 9 | NONE | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 18MB | NONE | NONE | (1) 512K x | (1) 4M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 20MB | (4) 4M x 9 | NONE | (1) 512K x | (1) 512K x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 20MB | NONE | NONE | (1) 1M x | (1) 4M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 24MB | (4) 1M x 9 | (4) 4M x 9 | (1) 512K x | (1) 512K x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 24MB | (4) 4M x 9 | NONE | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 24MB | NONE | NONE | (1) 2M x | (1) 4M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 32MB | (4) 4M x 9 | NONE | (1) 2M x | (1) 2M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 32MB | NONE | NONE | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 32MB | NONE | NONE | (1) 8M x | NONE |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 36MB | (4) 4M x 9 | (4) 4M x 9 | (1) 512K x | (1) 512K x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 36MB | (4) 4M x 9 | NONE | (1) 1M x | (1) 4M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 36MB | NONE | NONE | (1) 1M x | (1) 8M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 40MB | (4) 4M x 9 | (4) 4M x 9 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 48MB | (4) 4M x 9 | (4) 4M x 9 | (1) 2M x | (1) 2M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 48MB | (4) 4M x 9 | (4) 4M x 9 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 48MB | NONE | NONE | (1) 4M x | (1) 8M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 64MB | (4) 4M x 9 | (4) 4M x 9 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 64MB | NONE | NONE | (1) 16M x | NONE |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 64MB | NONE | NONE | (1) 8M x | (1) 8M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 65MB | NONE | NONE | (1) 256K x | (1) 16M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 68MB | NONE | NONE | (1) 1M x | (1) 16M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 72MB | (4) 16M x 9 | NONE | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 80MB | NONE | NONE | (1) 4M x | (1) 16M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 96MB | (4) 16M x 9 | NONE | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | NONE | NONE | (1) 16M x | (1) 16M x |
| | | | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Type | JP30 | JP31 | JP32 | JP33 |
|--------+------------+------------+------------+------------|
| Mode 1 | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 | pins 1 & 2 |
| | closed | closed | closed | closed |
|--------+------------+------------+------------+------------|
| Mode 2 | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 | pins 2 & 3 |
| | closed | closed | closed | 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 | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 256KB | (4) 64K x 8 | NONE | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 512KB | (4) 64K x 8 | (4) 64K x 8 | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 512KB | (4) 128K x 8 | NONE | (1) 32K x 8 |
|------------+---------------+---------------+---------------|
| 1MB | (4) 128K x 8 | (4) 128K x 8 | (1) 64K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP20 | JP21 | JP22 | JP23 | JP24 | JP25 | JP26 |
|--------+-------+-------+-------+------+------+------+------|
| 256KB | 2 & 3 | 1 & 2 | 1 & 2 | 2 & | 1 & | 1 & | Open |
| | | | | 3 | 2 | 2 | |
|------------------------------------------------------------|
| Note: The jumper settings for the remaining cache |
| sizes are unidentified by the manufacturer. Pins |
| designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP1 | JP2 | JP3 | JP4 | JP5 |
|-------------------+--------+-------+-------+-------+-------|
| 80486SX | Open | 3 & 4 | 1 & 2 | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| CX486DX | 2 & 3 | 2 & 3 | Open | 2 & 3 | 1 & 2 |
|-------------------+--------+-------+-------+-------+-------|
| 80486DX | Open | 3 & 4 | 1 & 2 | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| CX486DX2 | 2 & 3 | 2 & 3 | Open | 2 & 3 | 1 & 2 |
|-------------------+--------+-------+-------+-------+-------|
| 80486DX2 | Open | 3 & 4 | 1 & 2 | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| 80486DX4 | Open | 3 & 4 | 1 & 2 | 2 & 3 | 2 & 3 |
|-------------------+--------+-------+-------+-------+-------|
| P24D | Open | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 |
|-------------------+--------+-------+-------+-------+-------|
| Pentium Overdrive | 1 & 2 | 1 & 2 | Open | 1 & 2 | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP6 | JP7 | JP8 | JP9 | JP10 |
|--------------+-------+-------+-------+----------+----------|
| 80486SX | 1 & 2 | 2 & 3 | Open | 2 & 3 | 3 & 4 |
|--------------+-------+-------+-------+----------+----------|
| CX486DX | 2 & 3 | 1 & 2 | 3 & 4 | 1 & 2, 3 | 2 & 3 |
| | | | | & 4 | |
|--------------+-------+-------+-------+----------+----------|
| 80486DX | 1 & 2 | 2 & 3 | 3 & 4 | 1 & 2, 3 | 3 & 4 |
| | | | | & 4 | |
|--------------+-------+-------+-------+----------+----------|
| CX486DX2 | 2 & 3 | 1 & 2 | 3 & 4 | 1 & 2, 3 | 2 & 3 |
| | | | | & 4 | |
|--------------+-------+-------+-------+----------+----------|
| 80486DX2 | 1 & 2 | 2 & 3 | 3 & 4 | 1 & 2, 3 | 3 & 4 |
| | | | | & 4 | |
|--------------+-------+-------+-------+----------+----------|
| 80486DX4 | 1 & 2 | 2 & 3 | 3 & 4 | 1 & 2, 3 | 3 & 4 |
| | | | | & 4 | |
|--------------+-------+-------+-------+----------+----------|
| P24D | 1 & 2 | 2 & 3 | 3 & 4 | 1 & 2, 3 | 1 & 2, 3 |
| | | | | & 4 | & 4 |
|--------------+-------+-------+-------+----------+----------|
| Pentium | 1 & 2 | 2 & 3 | 2 & 3 | 1 & 2, 3 | 3 & 4 |
| Overdrive | | | | & 4 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP11 | JP12 | JP13 | JP14 | JP16 |
|-------------------+--------+-------+-------+-------+-------|
| 80486SX | 4 & 5 | Open | Open | Open | 1 & 2 |
|-------------------+--------+-------+-------+-------+-------|
| CX486DX | 2 & 3 | Open | Open | Open | 1 & 2 |
|-------------------+--------+-------+-------+-------+-------|
| 80486DX | 4 & 5 | Open | Open | Open | 1 & 2 |
|-------------------+--------+-------+-------+-------+-------|
| CX486DX2 | 2 & 3 | Open | Open | Open | 1 & 2 |
|-------------------+--------+-------+-------+-------+-------|
| 80486DX2 | 4 & 5 | Open | Open | Open | 1 & 2 |
|-------------------+--------+-------+-------+-------+-------|
| 80486DX4 | 4 & 5 | Open | Open | Open | 1 & 2 |
|-------------------+--------+-------+-------+-------+-------|
| P24D | 4 & 5 | Open | 1 & 2 | 1 & 2 | 1 & 2 |
|-------------------+--------+-------+-------+-------+-------|
| Pentium Overdrive | 1 & 2 | Open | Open | Open | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP40 | JP41 | JP42 |
|---------------+--------------+--------------+--------------|
| 25MHz | Closed | Open | Closed |
|---------------+--------------+--------------+--------------|
| 33MHz | Closed | Closed | Open |
|---------------+--------------+--------------+--------------|
| 40MHz | Open | Open | Closed |
|---------------+--------------+--------------+--------------|
| 50iMHz | Closed | Open | Closed |
|---------------+--------------+--------------+--------------|
| 50MHz | Open | Closed | Open |
|---------------+--------------+--------------+--------------|
| 66iMHz | Closed | Closed | Open |
|---------------+--------------+--------------+--------------|
| 75iMHz | Closed | Open | Closed |
|---------------+--------------+--------------+--------------|
| 100iMHz | Closed | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION (80486DX4 ONLY) |
|------------------------------------------------------------|
| Speed | JP15 |
|----------------------------+-------------------------------|
| 2x | pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 2.5x | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 3x | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VESA WAIT STATE CONFIGURATION |
|------------------------------------------------------------|
| Wait states | JP44 |
|----------------------------+-------------------------------|
| 0 wait states | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 1 wait state | pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BUS SPEED CONFIGURATION |
|------------------------------------------------------------|
| CPU speed | JP45 |
|----------------------------+-------------------------------|
| <= 33MHz | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| > 33MHz | pins 2 & 3 closed |
+------------------------------------------------------------+