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# ADDTECH RESEARCH, INC.
4GLX3
Processor CX486S/80486SX/80487SX/CX486DX/AMD486DX/80486DX/80486DX2/
80486DX4/Pentium Overdrive
Processor 25/33/40(internal)/50(internal)/50/66(internal)/100(internal)MHz
Speed
Chip Set Cypress
Max. 128MB
Onboard
DRAM
Cache 64/128/256KB
BIOS AMI
Dimensions 330mm x 218mm
I/O 32-bit VESA local bus slots (2)
Options
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------+----------+-----------------------+----------|
| Turbo LED | JP10 | External battery | JP17 |
|--------------+----------+-----------------------+----------|
| Speaker | JP11 | Turbo switch | JP95 |
|--------------+----------+-----------------------+----------|
| Power LED & | JP13 | 32-bit VESA Local bus | SL1 & |
| keylock | | slots | SL2 |
|--------------+----------+-----------------------+----------|
| Reset switch | JP15 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|----------------------------------+--------+----------------|
| » | CPU type select Intel/AMD | JP2A | pins 1 & 2 |
| | | | closed |
|---+------------------------------+--------+----------------|
| | CPU type select Cyrix | JP2A | pins 2 & 3 |
| | | | closed |
|---+------------------------------+--------+----------------|
| » | CPU type select PGA | JP12 | Closed |
|---+------------------------------+--------+----------------|
| | CPU type select PQFP | JP12 | Open |
|---+------------------------------+--------+----------------|
| » | CMOS memory normal operation | JP16 | pins 1 & 2 |
| | | | closed |
|---+------------------------------+--------+----------------|
| | CMOS memory clear | JP16 | pins 2 & 3 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 1MB | (4) 256K x 9 | NONE |
|------------------+--------------------+--------------------|
| 2MB | (4) 256K x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 4MB | (4) 1M x 9 | NONE |
|------------------+--------------------+--------------------|
| 5MB | (4) 256K x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 5MB | (4) 1M x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 8MB | (4) 1M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 16MB | (4) 4M x 9 | NONE |
|------------------+--------------------+--------------------|
| 17MB | (4) 256K x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 17MB | (4) 4M x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 20MB | (4) 1M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 20MB | (4) 4M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 32MB | (4) 4M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 64MB | (4) 16M x 9 | NONE |
|------------------+--------------------+--------------------|
| 65MB | (4) 256K x 9 | (4) 16M x 9 |
|------------------+--------------------+--------------------|
| 65MB | (4) 16M x 9 | (4) 256K x 9 |
|------------------+--------------------+--------------------|
| 68MB | (4) 1M x 9 | (4) 16M x 9 |
|------------------+--------------------+--------------------|
| 68MB | (4) 16M x 9 | (4) 1M x 9 |
|------------------+--------------------+--------------------|
| 80MB | (4) 4M x 9 | (4) 16M x 9 |
|------------------+--------------------+--------------------|
| 80MB | (4) 16M x 9 | (4) 4M x 9 |
|------------------+--------------------+--------------------|
| 128MB | (4) 16M x 9 | (4) 16M x 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP7 | JP8 |
|------------------+--------------------+--------------------|
| 64KB | pins 2 & 3 closed | pins 2 & 4 closed |
|------------------+--------------------+--------------------|
| 128KB | pins 1 & 2 closed | pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 256KB | pins 1 & 2 closed | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP2 | JP3 | JP4 |
|-----------------+------------------+-------------+---------|
| 80486SX (PQFP) | Open | Open | Open |
|-----------------+------------------+-------------+---------|
| 80486SX (PGA) | pins 2 & 3 | Open | Open |
| | closed | | |
|-----------------+------------------+-------------+---------|
| 80487SX | pins 1 & 2, 3 & | pins 1 & 2 | Closed |
| | 4 closed | closed | |
|-----------------+------------------+-------------+---------|
| 80486DX/DX2 | pins 1 & 2, 3 & | pins 2 & 3 | Open |
| | 4 closed | closed | |
|-----------------+------------------+-------------+---------|
| DX4/Overdrive | pins 1 & 2, 3 & | pins 1 & 2 | Closed |
| | 4 closed | closed | |
|------------------------------------------------------------|
| Note: This mainboard was manufactured with either a PQFP |
| socket or a PGA ZIF socket. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | ID3 | JP5 |JP5A |JP33 | JP36 |JP37 |JP38 | JP72 |
|---------+------+-----+-----+-----+------+-----+-----+------|
| 25MHz | Open |2 & 3|4 & 5|2 & 4|Closed|1 & 2|2 & 3|Closed|
|---------+------+-----+-----+-----+------+-----+-----+------|
| 33MHz | Open |2 & 3|4 & 5|2 & 4|Closed|2 & 3|1 & 2| Open |
|---------+------+-----+-----+-----+------+-----+-----+------|
| 40MHz |Closed|1 & 2|3 & 5|2 & 3| Open |1 & 2|2 & 3| Open |
|---------+------+-----+-----+-----+------+-----+-----+------|
| 50iMHz | Open |2 & 3|4 & 5|2 & 4|Closed|1 & 2|2 & 3|Closed|
|---------+------+-----+-----+-----+------+-----+-----+------|
| 50MHz |Closed|1 & 2| N/A |1 & 2| Open |2 & 3|1 & 2| Open |
|---------+------+-----+-----+-----+------+-----+-----+------|
| 66iMHz | Open |2 & 3|4 & 5|2 & 4|Closed|2 & 3|1 & 2| Open |
|---------+------+-----+-----+-----+------+-----+-----+------|
| 100iMHz | Open |2 & 3|4 & 5|2 & 4|Closed|2 & 3|1 & 2| Open |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. JP5 |
|corresponds to PGA ZIF socket & JP5A corresponds to PQFP |
|socket. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VESA WAIT STATE CONFIGURATION |
|------------------------------------------------------------|
| Wait states | ID2 |
|-------------------------------+----------------------------|
| 0 wait states | Open |
|-------------------------------+----------------------------|
| 1 wait state | Closed |
+------------------------------------------------------------+