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# M TECHNOLOGY, INC.
R418 PCI-486
Processor 80486SX/CX486DX/80486DX/AM486DX2/80486DX2/80486DX4/P24D/ Pentium
Overdrive
Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/
Speed 100(internal)MHz
Chip Set Unidentified
Max. 256MB
Onboard
DRAM
Cache 128/256/512/1024KB
BIOS Award
Dimensions 330mm x 218mm
I/O Parallel port, serial ports (2), 32-bit PCI slots (3), green PC
Options connector, floppy drive interface, IDE interfaces (2)
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN1 | Turbo switch | J3 |
|-------------------+----------+------------------+----------|
| Serial port 1 | CN2 | Turbo LED | J4 |
|-------------------+----------+------------------+----------|
| Parallel port | CN3 | Reset switch | J5 |
|-------------------+----------+------------------+----------|
| Floppy drive | CN4 | Break switch | J6 |
| interface | | | |
|-------------------+----------+------------------+----------|
| IDE interface 2 | CN5 | IDE interface | J7 |
| | | LED | |
|-------------------+----------+------------------+----------|
| IDE interface 1 | CN6 | Green PC | J9 |
| | | connector | |
|-------------------+----------+------------------+----------|
| Power LED & | J1 | 32-bit PCI slots | PC1 - |
| keylock | | | PC3 |
|-------------------+----------+------------------+----------|
| Speaker | J2 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|------------------------------------+--------+--------------|
| » | Serial port 1 IRQ select IRQ4 | JP27 | pins 1 & 2, |
| | | | 3 & 4 closed |
|---+--------------------------------+--------+--------------|
| | Serial port 2 IRQ select IRQ3 | JP27 | pins 1 & 2, |
| | | | 3 & 4 closed |
|---+--------------------------------+--------+--------------|
| » | Parallel port IRQ select IRQ7 | JP28 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | Parallel port IRQ select IRQ5 | JP28 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| » | CMOS memory normal operation | JP49 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| | CMOS memory clear | JP49 | pins 2 & 3 |
| | | | closed |
|---+--------------------------------+--------+--------------|
| » | Monitor type select monochrome | JP51 | Open |
|---+--------------------------------+--------+--------------|
| | Monitor type select color | JP51 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 1MB | (4) 256K x | NONE | NONE | NONE |
| | 9 | | | |
|------+-------------+-------------+------------+------------|
| 1MB | NONE | NONE | (1) 256K x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 2MB | (4) 256K x | (4) 256K x | NONE | NONE |
| | 9 | 9 | | |
|------+-------------+-------------+------------+------------|
| 2MB | NONE | NONE | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 2MB | NONE | NONE | (1) 512K x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 3MB | NONE | NONE | (1) 256K x | (1) 512K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 3MB | NONE | NONE | (1) 512K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 4MB | (4) 1M x 9 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 4MB | NONE | NONE | (1) 512K x | (1) 512K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 4MB | NONE | NONE | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 5MB | (4) 256K x | (4) 1M x 9 | NONE | NONE |
| | 9 | | | |
|------+-------------+-------------+------------+------------|
| 5MB | (4) 1M x 9 | (4) 256K x | NONE | NONE |
| | | 9 | | |
|------+-------------+-------------+------------+------------|
| 5MB | (4) 256K x | NONE | (1) 1M x | NONE |
| | 9 | | 36 | |
|------+-------------+-------------+------------+------------|
| 5MB | NONE | NONE | (1) 256K x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 5MB | NONE | NONE | (1) 1M x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 6MB | (4) 1M x 9 | NONE | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 6MB | NONE | NONE | (1) 512K x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 6MB | NONE | NONE | (1) 1M x | (1) 512K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 7MB | (4) 256K x | (4) 256K x | (1) 1M x | (1) 256K x |
| | 9 | 9 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 8MB | (4) 1M x 9 | (4) 256K x | (1) 256K x | (1) 512K x |
| | | 9 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 8MB | NONE | NONE | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 8MB | NONE | NONE | (1) 2M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 9MB | NONE | NONE | (1) 256K x | (1) 2M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 9MB | NONE | NONE | (1) 2M x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 10MB | NONE | NONE | (1) 512K x | (1) 2M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 10MB | NONE | NONE | (1) 2M x | (1) 512K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 11MB | (4) 256K x | (4) 1M x 9 | (1) 1M x | (1) 512K x |
| | 9 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 12MB | NONE | NONE | (1) 1M x | (1) 2M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 12MB | NONE | NONE | (1) 2M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 13MB | (4) 1M x 9 | (4) 1M x 9 | (1) 256K x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (4) 4M x 9 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 16MB | NONE | NONE | (1) 2M x | (1) 2M x |
| | | | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 16MB | NONE | NONE | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 17MB | (4) 256K x | (4) 4M x 9 | NONE | NONE |
| | 9 | | | |
|------+-------------+-------------+------------+------------|
| 17MB | (4) 4M x 9 | (4) 256K x | NONE | NONE |
| | | 9 | | |
|------+-------------+-------------+------------+------------|
| 17MB | NONE | NONE | (1) 256K x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 17MB | NONE | NONE | (1) 4M x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 18MB | NONE | NONE | (1) 512K x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 18MB | NONE | NONE | (1) 4M x | (1) 512K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 20MB | (4) 1M x 9 | (4) 4M x 9 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 20MB | (4) 4M x 9 | (4) 1M x 9 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 20MB | NONE | NONE | (1) 1M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 20MB | NONE | NONE | (1) 4M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 22MB | (4) 4M x 9 | (4) 1M x 9 | (1) 512K x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | NONE | NONE | (1) 2M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 24MB | NONE | NONE | (1) 4M x | (1) 2M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 25MB | (4) 256K x | (4) 4M x 9 | (1) 1M x | (1) 1M x |
| | 9 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 25MB | (4) 256K x | NONE | (1) 4M x | (1) 2M x |
| | 9 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 26MB | (4) 4M x 9 | NONE | (1) 2M x | (1) 512K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 28MB | (4) 1M x 9 | (4) 4M x 9 | (1) 2M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 29MB | (4) 1M x 9 | (4) 4M x 9 | (1) 256K x | (1) 2M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 29MB | (4) 4M x 9 | (4) 256K x | (1) 2M x | (1) 1M x |
| | | 9 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 32MB | NONE | NONE | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | NONE | NONE | (1) 8M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 33MB | NONE | NONE | (1) 256K x | (1) 8M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 33MB | NONE | NONE | (1) 8M x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 34MB | (4) 256K x | (4) 256K x | (1) 4M x | (1) 4M x |
| | 9 | 9 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 34MB | NONE | NONE | (1) 512K x | (1) 8M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 34MB | NONE | NONE | (1) 8M x | (1) 512K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 35MB | (4) 4M x 9 | (4) 4M x 9 | (1) 512K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 36MB | (4) 4M x 9 | (4) 1M x 9 | (1) 2M x | (1) 2M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 36MB | NONE | NONE | (1) 1M x | (1) 8M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 36MB | NONE | NONE | (1) 8M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 37MB | (4) 1M x 9 | NONE | (1) 8M x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 39MB | (4) 1M x 9 | (4) 256K x | (1) 8M x | (1) 512K x |
| | | 9 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 40MB | NONE | NONE | (1) 2M x | (1) 8M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 40MB | NONE | NONE | (1) 8M x | (1) 2M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 41MB | (4) 1M x 9 | (4) 256K x | (1) 1M x | (1) 8M x |
| | | 9 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 44MB | (4) 1M x 9 | (4) 1M x 9 | (1) 8M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 48MB | NONE | NONE | (1) 4M x | (1) 8M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 48MB | NONE | NONE | (1) 8M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 49MB | (4) 4M x 9 | NONE | (1) 256K x | (1) 8M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 53MB | (4) 256K x | (4) 1M x 9 | (1) 4M x | (1) 8M x |
| | 9 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 56MB | (4) 4M x 9 | (4) 4M x 9 | (1) 2M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 60MB | (4) 1M x 9 | (4) 4M x 9 | (1) 8M x | (1) 2M x |
| | | | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 64MB | (4) 16M x 9 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 64MB | NONE | NONE | (1) 8M x | (1) 8M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 64MB | NONE | NONE | (1) 16M x | NONE |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 65MB | (4) 256K x | (4) 16M x | NONE | NONE |
| | 9 | 9 | | |
|-------+-------------+------------+------------+------------|
| 65MB | (4) 16M x 9 | (4) 256K x | NONE | NONE |
| | | 9 | | |
|-------+-------------+------------+------------+------------|
| 65MB | NONE | NONE | (1) 256K x | (1) 16M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 65MB | NONE | NONE | (1) 16M x | (1) 256K x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 66MB | (4) 256K x | (4) 16M x | (1) 256K x | NONE |
| | 9 | 9 | 36 | |
|-------+-------------+------------+------------+------------|
| 66MB | NONE | NONE | (1) 512K x | (1) 16M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 66MB | NONE | NONE | (1) 16M x | (1) 512K x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 68MB | (4) 1M x 9 | (4) 16M x | NONE | NONE |
| | | 9 | | |
|-------+-------------+------------+------------+------------|
| 68MB | (4) 16M x 9 | (4) 1M x 9 | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 68MB | NONE | NONE | (1) 1M x | (1) 16M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 68MB | NONE | NONE | (1) 16M x | (1) 1M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 70MB | (4) 16M x 9 | NONE | (1) 512K x | (1) 1M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 72MB | NONE | NONE | (1) 2M x | (1) 16M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 72MB | NONE | NONE | (1) 16M x | (1) 2M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 75MB | (4) 16M x 9 | (4) 256K x | (1) 512K x | (1) 2M x |
| | | 9 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 76MB | (4) 1M x 9 | (4) 1M x 9 | (1) 1M x | (1) 16M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 77MB | (4) 1M x 9 | (4) 16M x | (1) 2M x | (1) 256K x |
| | | 9 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 80MB | (4) 4M x 9 | (4) 16M x | NONE | NONE |
| | | 9 | | |
|-------+-------------+------------+------------+------------|
| 80MB | (4) 16M x 9 | (4) 4M x 9 | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 80MB | (4) 4M x 9 | NONE | (1) 8M x | (1) 8M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 80MB | NONE | NONE | (1) 4M x | (1) 16M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 80MB | NONE | NONE | (1) 16M x | (1) 4M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 81MB | (4) 16M x 9 | (4) 256K x | (1) 4M x | NONE |
| | | 9 | 36 | |
|-------+-------------+------------+------------+------------|
| 82MB | (4) 4M x 9 | (4) 256K x | (1) 256K x | (1) 16M x |
| | | 9 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 84MB | (4) 4M x 9 | (4) 16M x | (1) 512K x | (1) 512K x |
| | | 9 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 85MB | (4) 1M x 9 | (4) 16M x | (1) 256K x | (1) 4M x |
| | | 9 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 85MB | (4) 16M x 9 | (4) 1M x 9 | (1) 4M x | (1) 256K x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 86MB | (4) 16M x 9 | (4) 1M x 9 | (1) 512K x | (1) 4M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 96MB | NONE | NONE | (1) 8M x | (1) 16M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 96MB | NONE | NONE | (1) 16M x | (1) 8M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 97MB | (4) 256K x | (4) 16M x | (1) 8M x | NONE |
| | 9 | 9 | 36 | |
|-------+-------------+------------+------------+------------|
| 97MB | (4) 4M x 9 | (4) 4M x 9 | (1) 16M x | (1) 256K x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 98MB | (4) 16M x 9 | (4) 4M x 9 | (1) 4M x | (1) 512K x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 113MB | (4) 4M x 9 | (4) 256K x | (1) 8M x | (1) 16M x |
| | | 9 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 114MB | (4) 16M x 9 | (4) 4M x 9 | (1) 512K x | (1) 8M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 120MB | (4) 4M x 9 | (4) 16M x | (1) 2M x | (1) 8M x |
| | | 9 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | (4) 16M x 9 | (4) 16M x | NONE | NONE |
| | | 9 | | |
|-------+-------------+------------+------------+------------|
| 128MB | NONE | NONE | (1) 16M x | (1) 16M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 132MB | (4) 16M x 9 | NONE | (1) 16M x | (1) 1M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 136MB | (4) 16M x 9 | NONE | (1) 2M x | (1) 16M x |
| | | | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+-------------+-----------|
| 137MB | (4) 16M x 9 | (4) 256K x | (1) 16M x | (1) 2M x |
| | | 9 | 36 | 36 |
|-------+-------------+------------+-------------+-----------|
| 148MB | (4) 16M x 9 | (4) 16M x | (1) 4M x 36 | (1) 1M x |
| | | 9 | | 36 |
|-------+-------------+------------+-------------+-----------|
| 148MB | (4) 16M x 9 | (4) 1M x 9 | (1) 16M x | (1) 4M x |
| | | | 36 | 36 |
|-------+-------------+------------+-------------+-----------|
| 176MB | (4) 16M x 9 | (4) 4M x 9 | (1) 16M x | (1) 8M x |
| | | | 36 | 36 |
|-------+-------------+------------+-------------+-----------|
| 194MB | (4) 16M x 9 | (4) 16M x | (1) 512K x | (1) 16M x |
| | | 9 | 36 | 36 |
|-------+-------------+------------+-------------+-----------|
| 256MB | (4) 16M x 9 | (4) 16M x | (1) 16M x | (1) 16M x |
| | | 9 | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|-------------+---------------+---------------+--------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
|-------------+---------------+---------------+--------------|
| 256KB (A) | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
|-------------+---------------+---------------+--------------|
| 256KB (B) | (4) 64K x 8 | NONE | (1) 32K x 8 |
|-------------+---------------+---------------+--------------|
| 512KB (A) | (4) 64K x 8 | (4) 64K x 8 | (1) 32K x 8 |
|-------------+---------------+---------------+--------------|
| 512KB (B) | (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 | JP5 | JP6 | JP7 | JP8 | JP9 | JP10 |
|--------+------------+-------+-------+------+-------+-------|
| 128KB | 1 & 2, 4 & | 1 & 2 | 1 & 2 | Open | 1 & 2 | 1 & 2 |
| | 5 | | | | | |
|--------+------------+-------+-------+------+-------+-------|
| 256KB | 2 & 3, 4 & | 2 & 3 | 2 & 3 | Open | 1 & 2 | 2 & 3 |
| (A) | 5 | | | | | |
|--------+------------+-------+-------+------+-------+-------|
| 256KB | 1 & 2, 3 & | 1 & 2 | 1 & 2 | Open | 1 & 2 | 2 & 3 |
| (B) | 4 | | | | | |
|--------+------------+-------+-------+------+-------+-------|
| 512KB | 2 & 3, 4 & | 2 & 3 | 2 & 3 | Open | 2 & 3 | 2 & 3 |
| (A) | 5 | | | | | |
|--------+------------+-------+-------+------+-------+-------|
| 512KB | 1 & 2, 4 & | 1 & 2 | 1 & 2 | Open | 2 & 3 | 2 & 3 |
| (B) | 5 | | | | | |
|--------+------------+-------+-------+------+-------+-------|
| 1MB | 2 & 3, 4 & | 2 & 3 | 2 & 3 | Open | 2 & 3 | 2 & 3 |
| | 5 | | | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP12 | JP13 | JP14 | JP15 | JP16 |
|----------+--------+--------+--------+-------+--------------|
| 80486SX | 2 & 3 | Open | 2 & 3 | Open | 3 & 4 |
|----------+--------+--------+--------+-------+--------------|
| CX486DX | 2 & 3 | 2 & 3 | 1 & 2 | 2 & 3 | 2 & 3 |
|----------+--------+--------+--------+-------+--------------|
| 80486DX | 2 & 3 | 2 & 3 | 2 & 3 | Open | 3 & 4 |
|----------+--------+--------+--------+-------+--------------|
| AM486DX2 | 2 & 3 | 2 & 3 | 2 & 3 | Open | 3 & 4 |
|----------+--------+--------+--------+-------+--------------|
| 80486DX2 | 2 & 3 | 2 & 3 | 2 & 3 | Open | 3 & 4 |
|----------+--------+--------+--------+-------+--------------|
| 80486DX4 | 2 & 3 | 2 & 3 | 2 & 3 | Open | 3 & 4 |
|----------+--------+--------+--------+-------+--------------|
| P24D | 1 & 2 | 2 & 3 | 2 & 3 | Open | 1 & 2, 3 & 4 |
|----------+--------+--------+--------+-------+--------------|
| P24T | 1 & 2 | 1 & 2 | 2 & 3 | 1 & 2 | 3 & 4 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP17 | JP18 | JP19 | JP20 |
|----------+----------------+------------+------+------------|
| 80486SX | pins 3 & 4 | Open | Open | Open |
| | closed | | | |
|----------+----------------+------------+------+------------|
| CX486DX | pins 2 & 3 | Open | Open | Open |
| | closed | | | |
|----------+----------------+------------+------+------------|
| 80486DX | pins 3 & 4 | Open | Open | Open |
| | closed | | | |
|----------+----------------+------------+------+------------|
| AM486DX2 | pins 3 & 4 | 2 & 3 | Open | Open |
| | closed | | | |
|----------+----------------+------------+------+------------|
| 80486DX2 | pins 3 & 4 | Open | Open | Open |
| | closed | | | |
|----------+----------------+------------+------+------------|
| 80486DX4 | pins 3 & 4 | Open | Open | Open |
| | closed | | | |
|----------+----------------+------------+------+------------|
| P24D | pins 1 & 2 | pins 1 & 2 | Open | pins 1 & 2 |
| | closed | closed | | closed |
|----------+----------------+------------+------+------------|
| P24T | pins 1 & 2 | Open | Open | Open |
| | closed | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP21 | JP22 | JP23 | JP24 |
|----------+------------+------------+-----------+-----------|
| 80486SX | Open | pins 2 & 3 | pins 4 & | Open |
| | | closed | 5 closed | |
|----------+------------+------------+-----------+-----------|
| CX486DX | Open | pins 1 & | pins 2 & | Open |
| | | 2, 3 & 4 | 3 closed | |
| | | closed | | |
|----------+------------+------------+-----------+-----------|
| 80486DX | Open | pins 1 & | pins 4 & | Open |
| | | 2, 3 & 4 | 5 closed | |
| | | closed | | |
|----------+------------+------------+-----------+-----------|
| AM486DX2 | Open | pins 1 & | pins 4 & | Open |
| | | 2, 3 & 4 | 5 closed | |
| | | closed | | |
|----------+------------+------------+-----------+-----------|
| 80486DX2 | Open | pins 1 & | pins 4 & | Open |
| | | 2, 3 & 4 | 5 closed | |
| | | closed | | |
|----------+------------+------------+-----------+-----------|
| 80486DX4 | Open | pins 1 & | pins 4 & | Open |
| | | 2, 3 & 4 | 5 closed | |
| | | closed | | |
|----------+------------+------------+-----------+-----------|
| P24D | Open | pins 1 & | pins 4 & | pins 2 & |
| | | 2, 3 & 4 | 5 closed | 3 closed |
| | | closed | | |
|----------+------------+------------+-----------+-----------|
| P24T | pins 1 & 2 | pins 1 & | pins 1 & | Open |
| | closed | 2, 3 & 4 | 2 closed | |
| | | closed | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP25 | JP38 | JP39 | JP40 |
|-----------+-------------------+----------+---------+-------|
| 25MHz | pins 1 & 2 closed | Open | Open | Open |
|-----------+-------------------+----------+---------+-------|
| 33MHz | pins 1 & 2 closed | Closed | Closed | Open |
|-----------+-------------------+----------+---------+-------|
| 40MHz | pins 1 & 2 closed | Closed | Open | Open |
|-----------+-------------------+----------+---------+-------|
| 50iMHz | pins 1 & 2 closed | Open | Open | Open |
|-----------+-------------------+----------+---------+-------|
| 50MHz | pins 2 & 3 closed | Open | Closed | Open |
|-----------+-------------------+----------+---------+-------|
| 66iMHz | pins 1 & 2 closed | Closed | Closed | Open |
|-----------+-------------------+----------+---------+-------|
| 75iMHz | pins 1 & 2 closed | Open | Open | Open |
|-----------+-------------------+----------+---------+-------|
| 80iMHz | pins 1 & 2 closed | Closed | Open | Open |
|-----------+-------------------+----------+---------+-------|
| 100iMHz | pins 1 & 2 closed | Closed | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JP42 | JP43 | JP44 | JP45 | JP46 |
|----------+---------+---------+---------+---------+---------|
| 3.3v | Closed | Open | Open | Open | Open |
|----------+---------+---------+---------+---------+---------|
| 3.45v | Open | Closed | Open | Open | Open |
|----------+---------+---------+---------+---------+---------|
| 3.6v | Open | Open | Closed | Open | Open |
|----------+---------+---------+---------+---------+---------|
| 3.75v | Open | Open | Open | Closed | Open |
|----------+---------+---------+---------+---------+---------|
| 3.9v | Open | Open | Open | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS CONFIGURATION |
|------------------------------------------------------------|
| Type | JP52 | JP53 |
|------------------+--------------------+--------------------|
| EEPROM | pins 2 & 3 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 12v flash | pins 1 & 2 closed | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CONFIGURATION |
|------------------------------------------------------------|
| DMA | JP36 | JP37 |
|------------------+--------------------+--------------------|
| DMA 1 | pins 2 & 3 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| DMA 3 | pins 1 & 2 closed | pins 1 & 2 closed |
+------------------------------------------------------------+