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# FIRST INTERNATIONAL COMPUTER, INC.
486-VIP-IO
Processor AM486/CX486S/80486SX/CX486DX/80486DX/80486DX2/80486DX4/P4S/
P23S/P24CT/P24D/Pentium Overdrive
Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set VIA
Max. 64MB
Onboard
DRAM
Cache 128/256/512/1024KB
BIOS Award
Dimensions 330mm x 218mm
I/O 32-bit VESA local bus slots (2), 32-bit PCI slots (4), floppy drive
Options interface, green PC connector, IDE interfaces (2), parallel port,
PS/2 mouse port, serial ports (2)
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+-----------------+----------|
| PS/2 mouse port | CN1 | Green PC | J21 |
| | | connector | |
|--------------------+----------+-----------------+----------|
| PS/2 mouse port | CN4 | Green PC | J22 |
| | | connector | |
|--------------------+----------+-----------------+----------|
| Serial port 2 | CN6 | Chassis fan | J24 |
| | | power | |
|--------------------+----------+-----------------+----------|
| Serial port 1 | CN7 | 3.3v daughter | J25 |
| | | board connector | |
|--------------------+----------+-----------------+----------|
| Parallel port | CN8 | Speaker | J28 |
|--------------------+----------+-----------------+----------|
| Floppy drive | CN9 | Power LED & | J29 |
| interface | | keylock | |
|--------------------+----------+-----------------+----------|
| IDE interface | CN10 | Reset switch | J30 |
| (secondary) | | | |
|--------------------+----------+-----------------+----------|
| External battery | J3 | Turbo switch | J31 |
|--------------------+----------+-----------------+----------|
| IDE interface LED | J4 | Turbo LED | J32 |
|--------------------+----------+-----------------+----------|
| Green PC connector | J5 | 32-bit PCI | PC1 - |
| | | slots | PC4 |
|--------------------+----------+-----------------+----------|
| IDE interface | J6 | 32-bit VESA | SL1 & |
| (primary) | | local bus slots | SL2 |
|--------------------+----------+-----------------+----------|
| IDE interface LED | J13 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | CMOS memory normal operation | J7 | Open |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | J7 | Closed |
|---+----------------------------------+--------+------------|
| » | IDE connector pin 27 linked to | J8 | Open |
| | IOCHRDY signal | | |
|---+----------------------------------+--------+------------|
| | IDE connector pin 27 open | J8 | Closed |
|---+----------------------------------+--------+------------|
| » | IDE connector pin 28 linked to | J11 | Open |
| | BALE signal | | |
|---+----------------------------------+--------+------------|
| | IDE connector pin 28 open | J11 | Closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J20 | Pins 1 & 2 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | J23 | Pins 1 & 2 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | VESA IDE enabled | J26 | Pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | VESA IDE disabled | J26 | Pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Monitor type select | J33 | Open |
| | monochrome/EGA/VGA | | |
|---+----------------------------------+--------+------------|
| | Monitor type select color | J33 | Closed |
|---+----------------------------------+--------+------------|
| » | Cache type select write back | JC7 | Pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Cache type select write through | JC7 | Pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | CPU type select Intel/AMD DX4 | JC8 | Pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CPU type select Cyrix DX2-V | JC8 | Pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | CPU type select Intel S - series | JC9 | Pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CPU type select | JC9 | Pins 2 & 3 |
| | P24D/P24T/CX486DX | | closed |
|---+----------------------------------+--------+------------|
| » | CPU type select Intel DX4 | JC10 | Open |
|---+----------------------------------+--------+------------|
| | CPU type select CX486DX/DX2-V | JC10 | Closed |
|---+----------------------------------+--------+------------|
| » | IRQ select IRQ10 | JT3 | Pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | IRQ select IRQ14 | JT3 | Pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JX1 | Pins 2 & 3 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JX2 | Pins 2 & 3 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JX5 | Pins 1 & 2 |
| | alter | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 1MB | (1) 256K x | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 1MB | NONE | (1) 256K x | NONE | NONE |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 1MB | NONE | NONE | (1) 256K x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 256K x | (1) 256K x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 256K x | NONE | (1) 256K x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 2MB | NONE | NONE | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 2MB | NONE | (1) 256K x | (1) 256K x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 3MB | (1) 256K x | (1) 256K x | (1) 256K x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 3MB | NONE | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 3MB | (1) 256K x | NONE | (1) 256K x | (1) 256K x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 1M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 4MB | NONE | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 4MB | NONE | NONE | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 1M x 36 | (1) 256K x | NONE | NONE |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 256K x | (1) 1M x 36 | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 256K x | NONE | (1) 1M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 1M x 36 | NONE | (1) 256K x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 5MB | NONE | (1) 256K x | (1) 1M x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 5MB | NONE | (1) 1M x 36 | (1) 256K x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 256K x | (1) 256K x | (1) 1M x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 256K x | (1) 1M x 36 | (1) 256K x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 6MB | NONE | (1) 1M x 36 | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 1M x 36 | NONE | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 7MB | (1) 1M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 7MB | (1) 256K x | (1) 1M x 36 | (1) 256K x | (1) 256K x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | NONE | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 8MB | NONE | NONE | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 8MB | NONE | (1) 1M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 9MB | (1) 256K x | (1) 1M x 36 | (1) 1M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 9MB | (1) 1M x 36 | (1) 256K x | (1) 1M x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 9MB | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 9MB | NONE | (1) 256K x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 9MB | (1) 256K x | NONE | (1) 1M x | (1) 1M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 256K x | (1) 256K x | (1) 1M x | (1) 1M x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 10MB | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 12MB | NONE | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | NONE | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 13MB | (1) 256K x | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 13MB | (1) 1M x 36 | (1) 256K x | (1) 1M x | (1) 1M x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 4M x 36 | NONE | NONE | NONE |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 16MB | NONE | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 16MB | NONE | NONE | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 4M x 36 | (1) 256K x | NONE | NONE |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 256K x | (1) 4M x 36 | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 256K x | NONE | (1) 4M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 17MB | NONE | (1) 256K x | (1) 4M x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 17MB | NONE | (1) 4M x 36 | (1) 256K x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 256K x | (1) 256K x | (1) 4M x | NONE |
| | 36 | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 256K x | (1) 4M x 36 | (1) 256K x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 18MB | NONE | (1) 4M x 36 | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 19MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 19MB | (1) 256K x | (1) 4M x 36 | (1) 256K x | (1) 256K x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 4M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 1M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 1M x 36 | NONE | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 20MB | NONE | (1) 4M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 20MB | NONE | (1) 1M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 21MB | (1) 4M x 36 | (1) 1M x 36 | (1) 256K x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 21MB | (1) 256K x | (1) 1M x 36 | (1) 4M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 21MB | (1) 256K x | (1) 4M x 36 | (1) 1M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 21MB | (1) 1M x 36 | (1) 256K x | (1) 4M x | NONE |
| | | 36 | 36 | |
|------+-------------+-------------+------------+------------|
| 21MB | (1) 1M x 36 | (1) 4M 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) 1M x 36 | (1) 4M x 36 | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 1M x 36 | (1) 4M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | NONE | (1) 4M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 25MB | (1) 256K x | (1) 4M x 36 | (1) 1M x | (1) 1M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 28MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 28MB | (1) 1M x 36 | (1) 4M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 32MB | NONE | (1) 4M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 32MB | NONE | NONE | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 8M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 32MB | NONE | NONE | (1) 8M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 33MB | (1) 4M x 36 | (1) 4M x 36 | (1) 256K x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 33MB | (1) 256K x | (1) 4M x 36 | (1) 4M x | NONE |
| | 36 | | 36 | |
|------+-------------+-------------+------------+------------|
| 33MB | NONE | (1) 256K x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 33MB | (1) 256K x | NONE | (1) 4M x | (1) 4M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 34MB | (1) 4M x 36 | (1) 4M x 36 | (1) 256K x | (1) 256K x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 34MB | (1) 256K x | (1) 256K x | (1) 4M x | (1) 4M x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 36MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x | NONE |
| | | | 36 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 36MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 36MB | NONE | (1) 1M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 36MB | (1) 1M x 36 | NONE | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 37MB | (1) 256K x | (1) 1M x 36 | (1) 4M x | (1) 4M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 37MB | (1) 1M x 36 | (1) 256K x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 48MB | NONE | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 49MB | (1) 256K x | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | 36 | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 52MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | (1) 4M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 64MB | (1) 8M x 36 | NONE | (1) 8M x | NONE |
| | | | 36 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|-------+--------------+--------------+----------------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K x 8 or (1) |
| | | | 32K 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) 128K x 8 | NONE | (1) 32K x 8 |
|-------+--------------+--------------+----------------------|
| 512KB | (4) 64K x 8 | (4) 64K x 8 | (1) 32K x 8 or (1) |
| | | | 64K x 8 |
|-------+--------------+--------------+----------------------|
| 1MB | (4) 128K x 8 | (4) 128K x 8 | (1) 64K x 8 or (1) |
| | | | 128K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JS1 | JS2 | JS3 | JS4 | JS5 | JS6 |
|--------+--------+--------+--------+--------+-------+-------|
| 128KB | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
|--------+--------+--------+--------+--------+-------+-------|
| 256KB | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
|--------+--------+--------+--------+--------+-------+-------|
| 512KB | 2 & 3 | 2 & 3 | 2 & 3 | 1 & 2 | 2 & 3 | 1 & 2 |
|--------+--------+--------+--------+--------+-------+-------|
| 1MB | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JC1 | JC2 | JC3 | JC4 | JC5 | JC6 |
|----------+-------+-------+--------+------+--------+--------|
| AM486 | 1 & 2 | 1 & 2 | Open | 1 & | Open | Closed |
| | | | | 2 | | |
|----------+-------+-------+--------+------+--------+--------|
| CX486S | 2 & 3 | 2 & 3 | Open | 1 & | Open | Open |
| | | | | 2 | | |
|----------+-------+-------+--------+------+--------+--------|
| 80486SX | 2 & 3 | 2 & 3 | Open | 1 & | Open | Closed |
| | | | | 2 | | |
|----------+-------+-------+--------+------+--------+--------|
| CX486DX | 1 & 2 | 1 & 2 | Open | 1 & | Open | Open |
| | | | | 2 | | |
|----------+-------+-------+--------+------+--------+--------|
| 80486DX | 1 & 2 | 1 & 2 | Open | 1 & | Open | Closed |
| | | | | 2 | | |
|----------+-------+-------+--------+------+--------+--------|
| 80486DX2 | 1 & 2 | 1 & 2 | Open | 1 & | Open | Closed |
| | | | | 2 | | |
|----------+-------+-------+--------+------+--------+--------|
| 80486DX4 | 1 & 2 | 1 & 2 | Open | 1 & | Closed | Closed |
| | | | | 2 | | |
|----------+-------+-------+--------+------+--------+--------|
| P4S | 1 & 2 | 1 & 2 | Open | 1 & | Closed | Closed |
| | | | | 2 | | |
|----------+-------+-------+--------+------+--------+--------|
| P23S | 2 & 3 | 2 & 3 | Open | 1 & | Closed | Closed |
| | | | | 2 | | |
|----------+-------+-------+--------+------+--------+--------|
| P24S | 1 & 2 | 1 & 2 | Open | 1 & | Closed | Closed |
| | | | | 2 | | |
|----------+-------+-------+--------+------+--------+--------|
| P24CT | 1 & 2 | 1 & 2 | Closed | 2 & | Closed | Closed |
| | | | | 3 | | |
|----------+-------+-------+--------+------+--------+--------|
| P24D | 1 & 2 | 1 & 2 | Open | 2 & | Closed | Closed |
| | | | | 3 | | |
|----------+-------+-------+--------+------+--------+--------|
| P24T | 1 & 2 | 1 & 2 | Closed | 2 & | Closed | Closed |
| | | | | 3 | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | RN18 | RN19 | RN20 |
|-----------+----------------+---------------+---------------|
| AM486 | Not installed | Not installed | Installed |
|-----------+----------------+---------------+---------------|
| CX486S | Installed | Not installed | Not installed |
|-----------+----------------+---------------+---------------|
| 80486SX | Not installed | Not installed | Not installed |
|-----------+----------------+---------------+---------------|
| CX486DX | Installed | Not installed | Not installed |
|-----------+----------------+---------------+---------------|
| 80486DX | Not installed | Not installed | Not installed |
|-----------+----------------+---------------+---------------|
| 80486DX2 | Not installed | Not installed | Not installed |
|-----------+----------------+---------------+---------------|
| 80486DX4 | Not installed | Installed | Not installed |
|-----------+----------------+---------------+---------------|
| P4S | Not installed | Not installed | Not installed |
|-----------+----------------+---------------+---------------|
| P23S | Not installed | Not installed | Not installed |
|-----------+----------------+---------------+---------------|
| P24S | Not installed | Not installed | Not installed |
|-----------+----------------+---------------+---------------|
| P24CT | Not installed | Installed | Not installed |
|-----------+----------------+---------------+---------------|
| P24D | Not installed | Installed | Not installed |
|-----------+----------------+---------------+---------------|
| P24T | Not installed | Not installed | Not installed |
|------------------------------------------------------------|
| Note: The locations of RN18, RN19 & RN 20 are |
| unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JK1 | JK2 | JK3 | JK4 |
|---------+------------+------------+------------+-----------|
| 25MHz | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & |
| | closed | closed | closed | 2 closed |
|---------+------------+------------+------------+-----------|
| 33MHZ | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & |
| | closed | closed | closed | 2 closed |
|---------+------------+------------+------------+-----------|
| 40MHz | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & |
| | closed | closed | closed | 2 closed |
|---------+------------+------------+------------+-----------|
| 50iMHz | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & |
| | closed | closed | closed | 2 closed |
|---------+------------+------------+------------+-----------|
| 50MHz | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & |
| | closed | closed | closed | 3 closed |
|---------+------------+------------+------------+-----------|
| 66iMHz | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & |
| | closed | closed | closed | 2 closed |
|---------+------------+------------+------------+-----------|
| 75iMHz | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | Pins 1 & |
| | closed | closed | closed | 2 closed |
|---------+------------+------------+------------+-----------|
| 100iMHz | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | Pins 1 & |
| | closed | closed | closed | 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION (80486DX4 ONLY) |
|------------------------------------------------------------|
| Speed | J27 |
|----------------------------+-------------------------------|
| 2.0x | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 2.5x | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 3.0x | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VESA WAIT STATE CONFIGURATION |
|------------------------------------------------------------|
| Wait states | JV1 |
|----------------------------+-------------------------------|
| 0 wait states | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 1 wait state | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BUS SPEED CONFIGURATION |
|------------------------------------------------------------|
| CPU speed | JV2 |
|----------------------------+-------------------------------|
| <= 33MHz | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| > 33MHz | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BASE I/O ADDRESS CONFIGURATION |
|------------------------------------------------------------|
| Index | Data | JF | JG | JH |
| address | address | | | |
|-----------+----------+--------------+-----------+----------|
| » | 26EH | 26FH | Pins 1 & 2 | Pins 2 & | Pins 2 & |
| | | | closed | 3 closed | 3 closed |
|---+-------+----------+--------------+-----------+----------|
| » | 2EH | 2FH | Pins 1 & 2 | Pins 1 & | Pins 2 & |
| | | | closed | 2 closed | 3 closed |
|---+-------+----------+--------------+-----------+----------|
| » | 15CH | 15DH | Pins 2 & 3 | Pins 1 & | Pins 2 & |
| | | | closed | 2 closed | 3 closed |
|---+-------+----------+--------------+-----------+----------|
| » | 398H | 399H | Pins 2 & 3 | Pins 2 & | Pins 2 & |
| | | | closed | 3 closed | 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA MODE CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP1 | JP2 |
|------------------+--------------------+--------------------|
| » | DREQ3/DACK3 | Pins 1 & 2 closed | Pins 1 & 2 closed |
|---+--------------+--------------------+--------------------|
| » | DREQ1/DACK1 | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| IDE CONNECTOR CONFIGURATION |
|------------------------------------------------------------|
| IRQ | J8 | J9 | J10 | J11 |
|------------------------+--------+--------+--------+--------|
| IDE connector pin 27 | Open | Open | N/A | N/A |
| linked to IOCHRDY | | | | |
| signal | | | | |
|------------------------+--------+--------+--------+--------|
| IDE connector pin 27 | Closed | Closed | N/A | N/A |
| open | | | | |
|------------------------+--------+--------+--------+--------|
| IDE connector pin 28 | N/A | N/A | Open | Open |
| linked to BALE signal | | | | |
|------------------------+--------+--------+--------+--------|
| IDE connector pin 28 | N/A | N/A | Closed | Closed |
| open | | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| IDE CONTROLLER CONFIGURATION |
|------------------------------------------------------------|
| Speed | J14 | J16 |
|------------------+--------------------+--------------------|
| 0 | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 1 | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 2 | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| IRQ PULL UP/PULL DOWN CONFIGURATION |
|------------------------------------------------------------|
| IRQ | J1 | J2 | J34 | J35 | J36 |
|------------+---------+---------+---------+--------+--------|
| IRQ5 pull | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
| up | | | | | |
|------------+---------+---------+---------+--------+--------|
| IRQ5 pull | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
| down | | | | | |
|------------+---------+---------+---------+--------+--------|
| IRQ9 pull | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
| up | | | | | |
|------------+---------+---------+---------+--------+--------|
| IRQ9 pull | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
| down | | | | | |
|------------+---------+---------+---------+--------+--------|
| IRQ10 pull | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
| up | | | | | |
|------------+---------+---------+---------+--------+--------|
| IRQ10 pull | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
| down | | | | | |
|------------+---------+---------+---------+--------+--------|
| IRQ11 pull | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
| up | | | | | |
|------------+---------+---------+---------+--------+--------|
| IRQ11 pull | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
| down | | | | | |
|------------+---------+---------+---------+--------+--------|
| IRQ14 pull | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
| up | | | | | |
|------------+---------+---------+---------+--------+--------|
| IRQ14 pull | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
| down | | | | | |
|------------------------------------------------------------|
| Note: Use pull down setting if PCI card is installed. Pins |
| designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PCI CLOCK CONFIGURATION |
|------------------------------------------------------------|
| Setting | JT4 | J19 |
|------------------+--------------------+--------------------|
| PCICLK=PCICLK | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| PCICLK=CPUCLK/2 | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| KEYBOARD CONTROLLER CONFIGURATION |
|------------------------------------------------------------|
| Type | J17 | JX3 | JX4 |
|---------------------+------------+------------+------------|
| External keyboard | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
|---------------------+------------+------------+------------|
| Internal keyboard | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
| with PS/2 mouse | closed | closed | closed |
|---------------------+------------+------------+------------|
| Internal keyboard | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 |
| without PS/2 mouse | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| KEYBOARD CONTROLLER CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | RN1 | RN2 | RN3 |
|--------------------+-------------+------------+------------|
| External keyboard | Installed | Not | Not |
| | | installed | installed |
|--------------------+-------------+------------+------------|
| Internal keyboard | Not | Installed | Not |
| with PS/2 mouse | installed | | installed |
|--------------------+-------------+------------+------------|
| Internal keyboard | Not | Not | Installed |
| without PS/2 mouse | installed | installed | |
|------------------------------------------------------------|
| Note: The locations of RN1, RN2, & RN3 are unidentified. |
+------------------------------------------------------------+