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# UNIDENTIFIED
PM486PA VIP
Processor AM486SX/80486SX/CX486M7/AM486DX/80486DX/AM486DX2/80486DX2/
80486DX4/Pentium Overdrive
Processor 25/33/40/50(internal)/66(internal)/100(internal)MHz
Speed
Chip Set ALI
Max. 256MB
Onboard
DRAM
Cache 128/256/512/1024KB
BIOS Phoenix
Dimensions 330mm x 218mm
I/O 32-bit VESA local bus slots (3), 32-bit PCI slots (4),
Options green PC connector
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Auxiliary | CN1 | Green PC monitor | JG2 |
| keyboard | | power | |
| connector | | | |
|-------------------+----------+------------------+----------|
| External battery | CN2 | Green PC VGA | JG3 |
| | | H-sync | |
|-------------------+----------+------------------+----------|
| Power LED & | J1 | Green PC VGA | JG4 |
| keylock | | V-sync | |
|-------------------+----------+------------------+----------|
| Speaker | J2 | Green PC | JG9 |
| | | connector | |
|-------------------+----------+------------------+----------|
| Reset switch | J3 | Ring in signal | JG10 |
| | | connector | |
|-------------------+----------+------------------+----------|
| Turbo switch | J4 | 32-bit PCI slots | PC1 - |
| | | | PC4 |
|-------------------+----------+------------------+----------|
| Turbo LED | J5 | 32-bit VESA | SL1 - |
| | | local bus slots | SL3 |
|-------------------+----------+------------------+----------|
| Green PC power | JG1 | | |
| fan | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|---------------------------------------+---------+----------|
| » | Factory configured - do not alter | JC1 | N/A |
|---+-----------------------------------+---------+----------|
| » | Factory configured - do not alter | JC14 | N/A |
|---+-----------------------------------+---------+----------|
| » | Factory configured - do not alter | JG8 | N/A |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 1MB | (1) 256K x | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 256K x | (1) 256K x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 3MB | (1) 256K x | (1) 256K x | (1) 256K x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 3MB | (1) 512K x | NONE | (1) 256K x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 512K x | NONE | (1) 512K x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 256K x | (1) 256K x | (1) 512K x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 512K x | NONE | (1) 256K x | (1) 256K x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 1M x 36 | (1) 256K x | NONE | NONE |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 256K x | (1) 256K x | (1) 1M x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 512K x | NONE | (1) 1M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 7MB | (1) 1M x 36 | (1) 256K x | (1) 512K x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 7MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 1M x 36 | (1) 1M x 36 | (1) 512K x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 512K x | NONE | (1) 2M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 512K x | NONE | (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) 2M x 36 | NONE | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 13MB | (1) 1M x 36 | (1) 256K x | (1) 2M x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 2M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | NONE | (1) 2M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 4M x 36 | (1) 256K x | NONE | NONE |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 256K x | (1) 256K x | (1) 4M x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 512K x | NONE | (1) 4M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 19MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 19MB | (1) 4M x 36 | (1) 256K x | (1) 512K x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 4M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 1M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 21MB | (1) 4M x 36 | (1) 1M x 36 | (1) 256K x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 22MB | (1) 4M x 36 | (1) 1M x 36 | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 22MB | (1) 4M x 36 | (1) 1M x 36 | (1) 512K x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 2M x 36 | NONE | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 25MB | (1) 4M x 36 | (1) 256K x | (1) 2M x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 25MB | (1) 2M x 36 | NONE | (1) 4M x | (1) 256K x |
| | | | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 28MB | (1) 4M x 36 | (1) 1M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 28MB | (1) 4M x 36 | (1) 1M x | (1) 2M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 8M x 36 | NONE | NONE | NONE |
|-------+-------------+------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 33MB | (1) 4M x 36 | (1) 4M x | (1) 256K x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 34MB | (1) 4M x 36 | (1) 4M x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 34MB | (1) 4M x 36 | (1) 4M x | (1) 512K x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 36MB | (1) 4M x 36 | (1) 4M x | (1) 1M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 36MB | (1) 8M x 36 | NONE | (1) 1M x | NONE |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 37MB | (1) 4M x 36 | (1) 4M x | (1) 1M x | (1) 256K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 4M x 36 | (1) 4M x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 8M x 36 | NONE | (1) 2M x | NONE |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 4M x 36 | (1) 4M x | (1) 2M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 49MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | (1) 256K x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 52MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | (1) 1M x |
| | | 36 | 36 | 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 | NONE | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 8M x 36 | NONE | (1) 8M x | NONE |
| | | | 36 | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 16M x | NONE | NONE | NONE |
| | 36 | | | |
|-------+-------------+------------+------------+------------|
| 65MB | (1) 16M x | (1) 256K x | NONE | NONE |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 66MB | (1) 16M x | (1) 256K x | (1) 256K x | NONE |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 67MB | (1) 16M x | (1) 256K x | (1) 512K x | NONE |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 68MB | (1) 16M x | (1) 1M x | NONE | NONE |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 70MB | (1) 16M x | (1) 1M x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 70MB | (1) 16M x | (1) 1M x | (1) 512K x | NONE |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 72MB | (1) 16M x | (1) 1M x | (1) 1M x | NONE |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 73MB | (1) 16M x | (1) 1M x | (1) 1M x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 76MB | (1) 16M x | (1) 1M x | (1) 1M x | (1) 1M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 76MB | (1) 16M x | (1) 1M x | (1) 2M x | NONE |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 80MB | (1) 16M x | (1) 4M x | NONE | NONE |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 84MB | (1) 16M x | (1) 4M x | (1) 1M x | NONE |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 84MB | (1) 16M x | (1) 1M x | (1) 4M x | NONE |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 85MB | (1) 16M x | (1) 1M x | (1) 4M x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 88MB | (1) 16M x | (1) 4M x | (1) 2M x | NONE |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 88MB | (1) 16M x | (1) 1M x | (1) 4M x | (1) 1M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 88MB | (1) 16M x | (1) 4M x | (1) 1M x | (1) 1M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 88MB | (1) 16M x | (1) 4M x | (1) 2M x | NONE |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 16M x | (1) 4M x | (1) 4M x | NONE |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 100MB | (1) 16M x | (1) 4M x | (1) 4M x | (1) 1M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 112MB | (1) 16M x | (1) 4M x | (1) 4M x | (1) 4M x |
| | 36 | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 16M x | (1) 16M x | NONE | NONE |
| | 36 | 36 | | |
|-------+-------------+------------+------------+------------|
| 160MB | (1) 16M x | (1) 16M x | (1) 8M x | NONE |
| | 36 | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 256MB | (1) 16M x | (1) 16M x | (1) 16M x | (1) 16M x |
| | 36 | 36 | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | NONE | (1) 32K 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 | (4) 64K x 8 | (4) 64K x 8 | (1) 64K x 8 |
|------------+---------------+---------------+---------------|
| 1MB | (4) 128K x 8 | (4) 128K x 8 | (1) 128K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JS1 | JS2 | JS3 | JS4 |
|-----------+------------+-----------+-----------+-----------|
| 128KB | pins 1 & 2 | pins 1 & | pins 1 & | pins 1 & |
| | closed | 2 closed | 2 closed | 2 closed |
|-----------+------------+-----------+-----------+-----------|
| 256KB (A) | pins 2 & 4 | pins 2 & | pins 1 & | pins 1 & |
| | closed | 3 closed | 2 closed | 2 closed |
|-----------+------------+-----------+-----------+-----------|
| 256KB (B) | pins 1 & 2 | pins 2 & | pins 1 & | pins 1 & |
| | closed | 3 closed | 2 closed | 2 closed |
|-----------+------------+-----------+-----------+-----------|
| 512KB | pins 3 & 5 | pins 2 & | pins 2 & | pins 1 & |
| | closed | 3 closed | 3 closed | 2 closed |
|-----------+------------+-----------+-----------+-----------|
| 1MB | pins 4 & 6 | pins 2 & | pins 2 & | pins 2 & |
| | closed | 3 closed | 3 closed | 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JC2 | JC3 | JC4 | JC5 |
|---------------+-----------+----------+----------+----------|
| AM486SX-25/33 | pins 1 & | pins 1 & | pins 2 & | pins 2 & |
| | 2 closed | 2 closed | 3 closed | 3 closed |
|---------------+-----------+----------+----------+----------|
| AM486SX-40 | pins 1 & | pins 1 & | pins 2 & | pins 2 & |
| | 2 closed | 2 closed | 3 closed | 3 closed |
|---------------+-----------+----------+----------+----------|
| 80486SX-25/33 | pins 1 & | pins 1 & | pins 2 & | pins 2 & |
| | 2 closed | 2 closed | 3 closed | 3 closed |
|---------------+-----------+----------+----------+----------|
| 80486SX-40 | pins 1 & | pins 1 & | pins 2 & | pins 2 & |
| | 2 closed | 2 closed | 3 closed | 3 closed |
|---------------+-----------+----------+----------+----------|
| CX486M7 | pins 1 & | pins 2 & | pins 2 & | pins 2 & |
| | 2 closed | 3 closed | 3 closed | 3 closed |
|---------------+-----------+----------+----------+----------|
| AM486DX-33 | pins 1 & | pins 1 & | pins 2 & | pins 2 & |
| | 2 closed | 2 closed | 3 closed | 3 closed |
|---------------+-----------+----------+----------+----------|
| AM486DX-40/50 | pins 1 & | pins 1 & | pins 2 & | pins 2 & |
| | 2 closed | 2 closed | 3 closed | 3 closed |
|---------------+-----------+----------+----------+----------|
| 80486DX-33 | pins 1 & | pins 1 & | pins 2 & | pins 2 & |
| | 2 closed | 2 closed | 3 closed | 3 closed |
|---------------+-----------+----------+----------+----------|
| 80486DX-40/50 | pins 1 & | pins 1 & | pins 2 & | pins 2 & |
| | 2 closed | 2 closed | 3 closed | 3 closed |
|---------------+-----------+----------+----------+----------|
| AM486DX2 | pins 1 & | pins 1 & | pins 1 & | pins 1 & |
| | 2 closed | 2 closed | 2 closed | 2 closed |
|---------------+-----------+----------+----------+----------|
| 80486DX2 | pins 1 & | pins 1 & | pins 1 & | pins 1 & |
| | 2 closed | 2 closed | 2 closed | 2 closed |
|---------------+-----------+----------+----------+----------|
| 80486DX4 | pins 1 & | pins 1 & | pins 1 & | pins 1 & |
| | 2 closed | 2 closed | 2 closed | 2 closed |
|---------------+-----------+----------+----------+----------|
| P24T | pins 2 & | pins 1 & | pins 1 & | pins 1 & |
| | 3 closed | 2 closed | 2 closed | 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JC7 | JC9 | JC10 | JC11 |
|---------------+--------------+-------------+-------+-------|
| AM486SX-25/33 | 3 & 4, 5 & 6 | 2 & 3 | 1 & 2 | Open |
|---------------+--------------+-------------+-------+-------|
| AM486SX-40 | 3 & 4, 5 & 6 | 2 & 3 | 1 & 2 | Open |
|---------------+--------------+-------------+-------+-------|
| 80486SX-25/33 | 3 & 4, 5 & 6 | 2 & 3 | 1 & 2 | Open |
|---------------+--------------+-------------+-------+-------|
| 80486SX-40 | 3 & 4, 5 & 6 | 2 & 3 | 1 & 2 | Open |
|---------------+--------------+-------------+-------+-------|
| CX486M7 | 3 & 4, 5 & 6 | 1 & 2, 3 & | 1 & 2 | 2 & 3 |
| | | 4 | | |
|---------------+--------------+-------------+-------+-------|
| AM486DX-33 | 3 & 4, 5 & 6 | 1 & 2, 3 & | 1 & 2 | 2 & 3 |
| | | 4 | | |
|---------------+--------------+-------------+-------+-------|
| AM486DX-40/50 | 3 & 4, 5 & 6 | 1 & 2, 3 & | 1 & 2 | 2 & 3 |
| | | 4 | | |
|---------------+--------------+-------------+-------+-------|
| 80486DX-33 | 3 & 4, 5 & 6 | 1 & 2, 3 & | 1 & 2 | 2 & 3 |
| | | 4 | | |
|---------------+--------------+-------------+-------+-------|
| 80486DX-40/50 | 3 & 4, 5 & 6 | 1 & 2, 3 & | 1 & 2 | 2 & 3 |
| | | 4 | | |
|---------------+--------------+-------------+-------+-------|
| AM486DX2 | 1 & 2, 3 & 4 | 1 & 2, 3 & | 1 & 2 | 2 & 3 |
| | | 4 | | |
|---------------+--------------+-------------+-------+-------|
| 80486DX2 | 1 & 2, 3 & 4 | 1 & 2, 3 & | 1 & 2 | 2 & 3 |
| | | 4 | | |
|---------------+--------------+-------------+-------+-------|
| 80486DX4 | 1 & 2, 3 & 4 | 1 & 2, 3 & | 1 & 2 | 2 & 3 |
| | | 4 | | |
|---------------+--------------+-------------+-------+-------|
| P24T | 1 & 2, 3 & 4 | 1 & 2, 3 & | 2 & 3 | 1 & 2 |
| | | 4 | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JC12 | JC13 | JC15 | JC16 |JC17| JC19 | JC20 |
|-------------+------+------+------+------+----+------+------|
|AM486SX-25/33|1 & 2 | Open |2 & 3 |2 & 3 |Open| Open | Open |
|-------------+------+------+------+------+----+------+------|
| AM486SX-40 |1 & 2 | Open |2 & 3 |2 & 3 |Open| Open | Open |
|-------------+------+------+------+------+----+------+------|
|80486SX-25/33|1 & 2 | Open |2 & 3 |2 & 3 |Open| Open | Open |
|-------------+------+------+------+------+----+------+------|
| 80486SX-40 |1 & 2 | Open |2 & 3 |2 & 3 |Open| Open | Open |
|-------------+------+------+------+------+----+------+------|
| CX486M7 |1 & 2 |2 & 3 |2 & 3 |2 & 3 |Open| Open |Closed|
|-------------+------+------+------+------+----+------+------|
| AM486DX-33 |1 & 2 | Open |2 & 3 |2 & 3 |Open| Open | Open |
|-------------+------+------+------+------+----+------+------|
|AM486DX-40/50|1 & 2 | Open |2 & 3 |2 & 3 |Open| Open | Open |
|-------------+------+------+------+------+----+------+------|
| 80486DX-33 |1 & 2 | Open |2 & 3 |2 & 3 |Open| Open | Open |
|-------------+------+------+------+------+----+------+------|
|80486DX-40/50|1 & 2 | Open |2 & 3 |2 & 3 |Open| Open | Open |
|-------------+------+------+------+------+----+------+------|
| AM486DX2 |1 & 2 | Open |1 & 2 |1 & 2 |Open| Open | Open |
|-------------+------+------+------+------+----+------+------|
| 80486DX2 |1 & 2 | Open |1 & 2 |1 & 2 |Open| Open | Open |
|-------------+------+------+------+------+----+------+------|
| 80486DX4 |1 & 2 | Open |1 & 2 |1 & 2 |Open|Closed| Open |
|-------------+------+------+------+------+----+------+------|
| P24T |2 & 3 |1 & 2 |1 & 2 |1 & 2 |Open| Open | Open |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JC21 | JC22 | JC23 | JC24 |JC25 |JC26 |JC27 |
|-------------+-------+------+------+------+-----+-----+-----|
|AM486SX-25/33| Open | Open |1 & 2 |1 & 2 |1 & 2|1 & 2|1 & 2|
|-------------+-------+------+------+------+-----+-----+-----|
| AM486SX-40 | Open | Open |1 & 2 |1 & 2 |1 & 2|1 & 2|2 & 3|
|-------------+-------+------+------+------+-----+-----+-----|
|80486SX-25/33| Open | Open |1 & 2 |1 & 2 |1 & 2|1 & 2|1 & 2|
|-------------+-------+------+------+------+-----+-----+-----|
| 80486SX-40 | Open | Open |1 & 2 |1 & 2 |1 & 2|1 & 2|2 & 3|
|-------------+-------+------+------+------+-----+-----+-----|
| CX486M7 |Closed |1 & 2 |1 & 2 |1 & 2 |1 & 2|1 & 2|1 & 2|
|-------------+-------+------+------+------+-----+-----+-----|
| AM486DX-33 | Open | Open |1 & 2 |1 & 2 |1 & 2|1 & 2|1 & 2|
|-------------+-------+------+------+------+-----+-----+-----|
|AM486DX-40/50| Open | Open |1 & 2 |1 & 2 |1 & 2|1 & 2|2 & 3|
|-------------+-------+------+------+------+-----+-----+-----|
| 80486DX-33 | Open | Open |1 & 2 |1 & 2 |1 & 2|1 & 2|1 & 2|
|-------------+-------+------+------+------+-----+-----+-----|
|80486DX-40/50| Open | Open |1 & 2 |1 & 2 |1 & 2|1 & 2|2 & 3|
|-------------+-------+------+------+------+-----+-----+-----|
| AM486DX2 | Open | Open |1 & 2 |1 & 2 |1 & 2|1 & 2|1 & 2|
|-------------+-------+------+------+------+-----+-----+-----|
| 80486DX2 | Open | Open |1 & 2 |1 & 2 |1 & 2|1 & 2|1 & 2|
|-------------+-------+------+------+------+-----+-----+-----|
| 80486DX4 | Open |2 & 3 |2 & 3 |2 & 3 |2 & 3|Open |1 & 2|
|-------------+-------+------+------+------+-----+-----+-----|
| P24T | Open | Open |2 & 3 |2 & 3 |2 & 3|2 & 3|1 & 2|
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JF1 | JF2 | JF3 | JG5 | JG6 | JG7 |
|---------+-------+-------+-------+--------+--------+--------|
| 25MHz | 2 & 3 | 1 & 2 | 2 & 3 | Open | Closed | Open |
|---------+-------+-------+-------+--------+--------+--------|
| 33MHz | 1 & 2 | 2 & 3 | 2 & 3 | Closed | Open | Open |
|---------+-------+-------+-------+--------+--------+--------|
| 40MHz | 2 & 3 | 2 & 3 | 1 & 2 | Open | Open | Closed |
|---------+-------+-------+-------+--------+--------+--------|
| 50iMHz | 2 & 3 | 1 & 2 | 2 & 3 | Open | Closed | Open |
|---------+-------+-------+-------+--------+--------+--------|
| 66iMHz | 1 & 2 | 2 & 3 | 2 & 3 | Closed | Open | Open |
|---------+-------+-------+-------+--------+--------+--------|
| 100iMHz | 1 & 2 | 2 & 3 | 2 & 3 | Closed | Open | Open |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
| Voltage | JX1 | JX2 |
|------------+--------------------+--------------------------|
| 3.3v | pins 1 & 2 closed | Open |
|------------+--------------------+--------------------------|
| 3.45v | pins 2 & 3 closed | N/A |
|------------+--------------------+--------------------------|
| 5v | N/A | pins 1 & 2, 3 & 4 closed |
+------------------------------------------------------------+