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# EFA CORPORATION
4DMS-HL3G
Processor CX486M6/CX486S/80486SX/SL80486SX/CX486M7/CX486DX/AM486DX/
80486DX/AM486DXL/SL80486DX/CX486DX2/AM486DX2/80486DX2/
AM486DX2L/SL80486DX2/CX486DX2-V/80486DX4/Pentium Overdrive/SL
Pentium Overdrive
Processor 20/25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/
Speed 100(internal)MHz
Chip Set SIS
Max. 128MB
Onboard
DRAM
Cache 64/128/256/512/1024KB
BIOS Award
Dimensions 291mm x 223mm
I/O 32-bit VESA local bus slots (3)
Options
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| External battery | JP1 | Speaker | JP40 |
|-------------------+----------+------------------+----------|
| Turbo switch | JP37 | Turbo LED | JP41 |
|-------------------+----------+------------------+----------|
| Reset switch | JP38 | 32-bit VESA | SL1 - |
| | | local bus slots | SL3 |
|-------------------+----------+------------------+----------|
| Power LED & | JP39 | | |
| keylock | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | Monitor type select color | JP2 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Monitor type select | JP2 | Open |
| | monochrome/VGA | | |
|---+----------------------------------+--------+------------|
| » | CMOS memory normal operation | JP3 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP3 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP8 | pins 1 & 2 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP20 | pins 2 & 3 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP28 | pins 1 & 2 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | BIOS voltage select 5V | JP29 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | BIOS voltage select 12V | JP29 | pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+---------------+-------------+------------+----------|
| 1MB | (1) 256K x 36 | NONE | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 2MB | (1) 256K x 36 | (1) 256K x | NONE | NONE |
| | | 36 | | |
|------+---------------+-------------+------------+----------|
| 2MB | (1) 512K x 36 | NONE | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 4MB | (1) 256K x 36 | (1) 256K x | (1) 512K x | NONE |
| | | 36 | 36 | |
|------+---------------+-------------+------------+----------|
| 4MB | (1) 512K x 36 | (1) 512K x | NONE | NONE |
| | | 36 | | |
|------+---------------+-------------+------------+----------|
| 4MB | (1) 1M x 36 | NONE | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 5MB | (1) 256K x 36 | (1) 1M x 36 | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 6MB | (1) 256K x 36 | (1) 256K x | (1) 1M x | NONE |
| | | 36 | 36 | |
|------+---------------+-------------+------------+----------|
| 6MB | (1) 512K x 36 | (1) 1M x 36 | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 8MB | (1) 256K x 36 | (1) 256K x | (1) 512K x | (1) 1M x |
| | | 36 | 36 | 36 |
|------+---------------+-------------+------------+----------|
| 8MB | (1) 512K x 36 | (1) 512K x | (1) 1M x | NONE |
| | | 36 | 36 | |
|------+---------------+-------------+------------+----------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 8MB | (1) 2M x 36 | NONE | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 10MB | (1) 256K x 36 | (1) 256K x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|------+---------------+-------------+------------+----------|
| 12MB | (1) 512K x 36 | (1) 512K x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|------+---------------+-------------+------------+----------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+---------------+-------------+------------+----------|
| 12MB | (1) 1M x 36 | (1) 2M x 36 | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+---------------+-------------+------------+----------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 2M x | NONE |
| | | | 36 | |
|------+---------------+-------------+------------+----------|
| 16MB | (1) 2M x 36 | (1) 2M x 36 | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 16MB | (1) 4M x 36 | NONE | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 17MB | (1) 256K x 36 | (1) 4M x 36 | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 18MB | (1) 256K x 36 | (1) 256K x | (1) 4M x | NONE |
| | | 36 | 36 | |
|------+---------------+-------------+------------+----------|
| 18MB | (1) 512K x 36 | (1) 4M x 36 | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 20MB | (1) 512K x 36 | (1) 512K x | (1) 4M x | NONE |
| | | 36 | 36 | |
|------+---------------+-------------+------------+----------|
| 20MB | (1) 1M x 36 | (1) 4M x 36 | NONE | NONE |
|------+---------------+-------------+------------+----------|
| 24MB | (1) 512K x 36 | (1) 512K x | (1) 1M x | (1) 4M x |
| | | 36 | 36 | 36 |
|------+---------------+-------------+------------+----------|
| 24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+---------------+-------------+------------+----------|
| 24MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x | NONE |
| | | | 36 | |
|------+---------------+-------------+------------+----------|
| 32MB | (1) 2M 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| 36MB | (1) 512K x | (1) 512K x | (1) 4M x | (1) 4M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 36MB | (1) 1M x 36 | (1) 4M x | (1) 4M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 36MB | (1) 1M x 36 | (1) 8M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 1M x 36 | (1) 1M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 2M x 36 | (1) 8M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 4M 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 | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 8M x 36 | (1) 8M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 16M x | NONE | NONE | NONE |
| | 36 | | | |
|-------+-------------+------------+------------+------------|
| 65MB | (1) 256K x | (1) 16M x | NONE | NONE |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 68MB | (1) 1M x 36 | (1) 8M x | (1) 8M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 68MB | (1) 1M x 36 | (1) 16M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 72MB | (1) 1M x 36 | (1) 1M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 72MB | (1) 1M x 36 | (1) 1M x | (1) 16M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 80MB | (1) 4M x 36 | (1) 8M x | (1) 8M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 80MB | (1) 4M x 36 | (1) 16M x | NONE | NONE |
| | | 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 | |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 4M x 36 | (1) 4M x | (1) 16M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 16M x | (1) 16M x | NONE | NONE |
| | 36 | 36 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
|----------+----------------+----------------+---------------|
| 512KB | (4) 128K x 8 | NONE | (1) 32K x 8 |
|----------+----------------+----------------+---------------|
| 1MB | (4) 128K x 8 | (4) 128K x 8 | (1) 128K x 8 |
|------------------------------------------------------------|
| Note: The 32K x 8 chips have 28 pins, and the sockets |
| have 32. When installing these chips, leave the |
| topmost four pins empty. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP4 | JP5 | JP6 | JP7 | JP9 | JP10 | JP11 |
|------------+------+------+------+------+-----+------+------|
| CX486M6 | 1 & | Open | Open | 2 & | 1 & | 1 & | 2 & |
| | 2 | | | 3 | 2 | 2 | 3 |
|------------+------+------+------+------+-----+------+------|
| CX486S | 1 & | Open | Open | 2 & | 1 & | 1 & | 2 & |
| | 2 | | | 3 | 2 | 2 | 3 |
|------------+------+------+------+------+-----+------+------|
| 80486SX | 1 & | Open | Open | Open | 1 & | Open | Open |
| | 2 | | | | 2 | | |
|------------+------+------+------+------+-----+------+------|
| SL80486SX | 1 & | 1 & | Open | 4 & | 1 & | 2 & | 1 & |
| | 2 | 2 | | 5 | 2 | 3 | 2 |
|------------+------+------+------+------+-----+------+------|
| CX486M7 | 1 & | Open | 1 & | 2 & | 1 & | 1 & | 2 & |
| | 2 | | 2 | 3 | 2 | 2 | 3 |
|------------+------+------+------+------+-----+------+------|
| CX486DX | 1 & | Open | 1 & | 2 & | 1 & | 1 & | 2 & |
| | 2 | | 2 | 3 | 2 | 2 | 3 |
|------------+------+------+------+------+-----+------+------|
| AM486DX | 1 & | Open | 1 & | Open | 1 & | Open | Open |
| | 2 | | 2 | | 2 | | |
|------------+------+------+------+------+-----+------+------|
| 80486DX | 1 & | Open | Open | Open | 1 & | Open | Open |
| | 2 | | | | 2 | | |
|------------+------+------+------+------+-----+------+------|
| AM486DXL | 1 & | Open | 1 & | Open | 1 & | Open | Open |
| | 2 | | 2 | | 2 | | |
|------------+------+------+------+------+-----+------+------|
| SL80486DX | 1 & | 1 & | 1 & | 4 & | 1 & | 2 & | 1 & |
| | 2 | 2 | 2 | 5 | 2 | 3 | 2 |
|------------+------+------+------+------+-----+------+------|
| CX486DX2 | 1 & | Open | 1 & | 2 & | 1 & | 1 & | 2 & |
| | 2 | | 2 | 3 | 2 | 2 | 3 |
|------------+------+------+------+------+-----+------+------|
| AM486DX2 | 1 & | Open | 1 & | Open | 1 & | Open | Open |
| | 2 | | 2 | | 2 | | |
|------------+------+------+------+------+-----+------+------|
| 80486DX2 | 1 & | Open | Open | Open | 1 & | Open | Open |
| | 2 | | | | 2 | | |
|------------+------+------+------+------+-----+------+------|
| AM486DX2L | 1 & | Open | 1 & | Open | 1 & | Open | Open |
| | 2 | | 2 | | 2 | | |
|------------+------+------+------+------+-----+------+------|
| SL80486DX2 | 1 & | 1 & | 1 & | 4 & | 1 & | 2 & | 1 & |
| | 2 | 2 | 2 | 5 | 2 | 3 | 2 |
|------------+------+------+------+------+-----+------+------|
| CX486DX2-V | 2 & | Open | 1 & | 2 & | 1 & | 1 & | 2 & |
| | 3 | | 2 | 3 | 2 | 2 | 3 |
|------------+------+------+------+------+-----+------+------|
| 80486DX4 | 2 & | 1 & | 1 & | 4 & | 2 & | 2 & | 1 & |
| | 3 | 2 | 2 | 5 | 3 | 3 | 2 |
|------------+------+------+------+------+-----+------+------|
| P24T | 1 & | Open | 1 & | Open | 1 & | Open | Open |
| | 2 | | 2 | | 2 | | |
|------------+------+------+------+------+-----+------+------|
| P24D | 1 & | 1 & | 1 & | 4 & | 1 & | 2 & | 1 & |
| | 2 | 2 | 2 | 5 | 2 | 3 | 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP12 | JP13 | JP14 | JP15 | JP16 |JP21 |JP22 |
|-----------+-------+-------+------+------+------+-----+-----|
| CX486M6 | 2 & 3 | 2 & 3 |2 & 3 | Open |2 & 3 |Open |1 & 2|
|-----------+-------+-------+------+------+------+-----+-----|
| CX486S | 2 & 3 | 2 & 3 |2 & 3 | Open |2 & 3 |Open |1 & 2|
|-----------+-------+-------+------+------+------+-----+-----|
| 80486SX | 2 & 3 | Open |2 & 3 | Open | Open |Open |2 & 3|
|-----------+-------+-------+------+------+------+-----+-----|
| SL80486SX | 2 & 3 | Open |2 & 3 | Open | Open |Open |2 & 3|
|-----------+-------+-------+------+------+------+-----+-----|
| CX486M7 | 2 & 3 | 2 & 3 |1 & 2 |3 & 4 |2 & 3 |2 & 3|1 & 2|
|-----------+-------+-------+------+------+------+-----+-----|
| CX486DX | 2 & 3 | 2 & 3 |1 & 2 |3 & 4 |2 & 3 |2 & 3|1 & 2|
|-----------+-------+-------+------+------+------+-----+-----|
| AM486DX | 2 & 3 | 3 & 4 |1 & 2 |1 & 2 | Open |Open |2 & 3|
|-----------+-------+-------+------+------+------+-----+-----|
| 80486DX | 2 & 3 | Open |1 & 2 |3 & 4 | Open |Open |2 & 3|
|-----------+-------+-------+------+------+------+-----+-----|
| AM486DXL | 2 & 3 | 3 & 4 |1 & 2 |1 & 2 | Open |Open |2 & 3|
|-----------+-------+-------+------+------+------+-----+-----|
| SL80486DX | 2 & 3 | Open |1 & 2 |3 & 4 | Open |Open |2 & 3|
|-----------+-------+-------+------+------+------+-----+-----|
| CX486DX2 | 2 & 3 | 2 & 3 |1 & 2 |3 & 4 |2 & 3 |1 & 2|1 & 2|
|-----------+-------+-------+------+------+------+-----+-----|
| AM486DX2 | 2 & 3 | 3 & 4 |1 & 2 |1 & 2 | Open |Open |2 & 3|
|-----------+-------+-------+------+------+------+-----+-----|
| 80486DX2 | 2 & 3 | Open |1 & 2 |3 & 4 | Open |Open |2 & 3|
|-----------+-------+-------+------+------+------+-----+-----|
| AM486DX2L | 2 & 3 | 3 & 4 |1 & 2 |1 & 2 | Open |Open |2 & 3|
|-----------+-------+-------+------+------+------+-----+-----|
|SL80486DX2 | 2 & 3 | Open |1 & 2 |3 & 4 | Open |Open |2 & 3|
|-----------+-------+-------+------+------+------+-----+-----|
|CX486DX2-V | 2 & 3 | 2 & 3 |1 & 2 |3 & 4 |2 & 3 |1 & 2|1 & 2|
|-----------+-------+-------+------+------+------+-----+-----|
| 80486DX4 | 2 & 3 | Open |1 & 2 |3 & 4 | Open |Open |2 & 3|
|-----------+-------+-------+------+------+------+-----+-----|
| P24T | 1 & 2 | Open |1 & 2 |2 & 3 | Open |Open |2 & 3|
|-----------+-------+-------+------+------+------+-----+-----|
| P24D | 1 & 2 | Open |1 & 2 |2 & 3 | Open |Open |2 & 3|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP23 | JP36 | JP42 | JP43 | JP44 | JP45 |
|------------+-------+-------+-------+-------+-------+-------|
| CX486M6 | 2 & 3 | 1 & | Open | 1 & 2 | 1 & 2 | Open |
| | | 2, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| CX486S | 2 & 3 | 1 & | Open | 1 & 2 | 1 & 2 | Open |
| | | 2, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| 80486SX | 1 & 2 | 1 & | Open | 1 & 2 | 1 & 2 | Open |
| | | 2, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| SL80486SX | 1 & 2 | 1 & | Open | 1 & 2 | 1 & 2 | Open |
| | | 2, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| CX486M7 | 2 & 3 | 1 & | Open | 1 & 2 | 1 & 2 | Open |
| | | 2, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| CX486DX | 2 & 3 | 1 & | Open | 1 & 2 | 1 & 2 | Open |
| | | 2, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| AM486DX | 1 & 2 | 1 & | Open | 1 & 2 | 1 & 2 | Open |
| | | 2, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| 80486DX | 1 & 2 | 1 & | Open | 1 & 2 | 1 & 2 | Open |
| | | 2, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| AM486DXL | 1 & 2 | 1 & | Open | 1 & 2 | 2 & 3 | Open |
| | | 2, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| SL80486DX | 1 & 2 | 1 & | Open | 1 & 2 | 1 & 2 | Open |
| | | 2, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| CX486DX2 | 2 & 3 | 1 & | Open | 1 & 2 | 1 & 2 | Open |
| | | 2, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| AM486DX2 | 1 & 2 | 1 & | Open | 1 & 2 | 1 & 2 | Open |
| | | 2, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| 80486DX2 | 1 & 2 | 1 & | Open | 1 & 2 | 1 & 2 | Open |
| | | 2, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| AM486DX2L | 1 & 2 | 1 & | Open | 1 & 2 | 2 & 3 | Open |
| | | 2, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| SL80486DX2 | 1 & 2 | 1 & | Open | 1 & 2 | 1 & 2 | Open |
| | | 2, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| CX486DX2-V | 2 & 3 | 2 & | Open | 1 & 2 | 1 & 2 | 1 & 2 |
| | | 3, 5 | | | | |
| | | & 6 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| 80486DX4 | 1 & 2 | 2 & | 1 & 2 | Open | 1 & 2 | Open |
| | | 3, 5 | | | | |
| | | & 6 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| P24T | 1 & 2 | 1 & | Open | 1 & 2 | 1 & 2 | Open |
| | | 2, 4 | | | | |
| | | & 5 | | | | |
|------------+-------+-------+-------+-------+-------+-------|
| P24D | 1 & 2 | 1 & | Open | 1 & 2 | 1 & 2 | Open |
| | | 2, 4 | | | | |
| | | & 5 | | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP24 | JP25 | JP26 | JP30 | JP31 |
|-----------+----------+---------+---------+--------+--------|
| 20MHz | 1 & 2 | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 |
|-----------+----------+---------+---------+--------+--------|
| 25MHz | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 |
|-----------+----------+---------+---------+--------+--------|
| 33MHz | 2 & 3 | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 |
|-----------+----------+---------+---------+--------+--------|
| 40MHz | 1 & 2 | 2 & 3 | 1 & 2 | 2 & 3 | 2 & 3 |
|-----------+----------+---------+---------+--------+--------|
| 50iMHz | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 |
|-----------+----------+---------+---------+--------+--------|
| 50MHz | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 |
|-----------+----------+---------+---------+--------+--------|
| 66iMHz | 2 & 3 | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 |
|-----------+----------+---------+---------+--------+--------|
| 75iMHz | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 |
|-----------+----------+---------+---------+--------+--------|
| 80iMHz | 1 & 2 | 2 & 3 | 1 & 2 | 2 & 3 | 2 & 3 |
|-----------+----------+---------+---------+--------+--------|
| 100iMHz | 2 & 3 | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP17 | JP18 | JP19 | JP27 | JP32 | JP33 | JP34 |
|-------+-------+-------+-------+-------+------+------+------|
| 64KB | 1 & 2 | 2 & 3 | Open | 2 & 3 | 1 & | 1 & | 1 & |
| | | | | | 2 | 2 | 2 |
|-------+-------+-------+-------+-------+------+------+------|
| 128KB | 2 & 3 | 1 & 2 | 1 & | 2 & 3 | 1 & | 1 & | 2 & |
| | | | 2, 3 | | 2 | 2 | 3 |
| | | | & 4 | | | | |
|-------+-------+-------+-------+-------+------+------+------|
| 256KB | 1 & 2 | 1 & 2 | 2 & | 2 & 3 | 1 & | 2 & | 2 & |
| | | | 3, 4 | | 2 | 3 | 3 |
| | | | & 5 | | | | |
|-------+-------+-------+-------+-------+------+------+------|
| 512KB | 2 & 3 | 1 & 2 | 1 & | 2 & 3 | 2 & | 2 & | 2 & |
| | | | 2, 3 | | 3 | 3 | 3 |
| | | | & 4 | | | | |
|-------+-------+-------+-------+-------+------+------+------|
| 1MB | 1 & 2 | 1 & 2 | 2 & | 1 & 2 | 2 & | 2 & | 2 & |
| | | | 3, 4 | | 3 | 3 | 3 |
| | | | & 5 | | | | |
|------------------------------------------------------------|
| Note: Pins designated are in the closed position. |
+------------------------------------------------------------+