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# ADDTECH RESEARCH, INC.
GALAXY II 486 VER. 1.0
Processor CX486S2/80486SX/CX486DX/AMD486DX/80486DX/80486DX2/80486DX4/ Pentium
Overdrive
Processor 25/33/40I/40/50(internal)/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set Cypress
Max. 128MB
Onboard
DRAM
Cache 128/256/512/1024KB
BIOS AMI/Award
Dimensions 330mm x 218mm
I/O 32-bit PCI bus slots (4), 32-bit VESA local bus slots (2)
Options
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| External battery | JP1 | Reset switch | JP59 |
|-------------------+----------+------------------+----------|
| Turbo switch | JP49 | Speaker | JP60 |
|-------------------+----------+------------------+----------|
| Turbo LED | JP50 | 32-bit PCI bus | P0 - P3 |
| | | slots | |
|-------------------+----------+------------------+----------|
| Power LED & | JP57 | 32-bit VESA | SL1 & |
| keylock | | Local bus slots | SL2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| » | CMOS memory normal operation | JP2 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP2 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Flash memory disabled | JP3 | Open |
|---+----------------------------------+--------+------------|
| | Flash memory voltage select 5v | JP3 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Flash memory voltage select 12v | JP3 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | SIMM type select single bank | JP4 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | SIMM type select double bank | JP4 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP9 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP10 | Open |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | CPU type select Intel/AMD | JP27 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CPU type select Cyrix | JP27 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP32 | pins 2 & 3 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP34 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP35 | pins 2 & 3 |
| | alter | | closed |
|---+----------------------------------+--------+------------|
| » | CPU clock delay select 1 delay | JP36 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | CPU clock delay select 0 delay | JP36 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP42 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP51 | N/A |
| | alter | | |
|---+----------------------------------+--------+------------|
| » | Monitor type select color | JP55 | Open |
|---+----------------------------------+--------+------------|
| | Monitor type select monochrome | JP55 | Closed |
|---+----------------------------------+--------+------------|
| » | Factory configured - do not | JP58 | N/A |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 2MB | (1) 512K x | NONE | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 512K x | (1) 512K x | NONE | NONE |
| | 36 | 36 | | |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 1M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 8MB | (1) 2M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | NONE |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | (1) 2M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 4M x 36 | NONE | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 256K x | (1) 4M x 36 | NONE | NONE |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 1M x 36 | (1) 4M x 36 | NONE | NONE |
|------+-------------+-------------+------------+------------|
| 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) 1M x 36 | (1) 4M x | (1) 4M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 40MB | (1) 1M x 36 | (1) 1M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 52MB | (1) 1M x 36 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 4M x 36 | (1) 4M x | (1) 4M x | (1) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 8M x 36 | (1) 8M x | NONE | NONE |
| | | 36 | | |
|-------+-------------+------------+------------+------------|
| 64MB | (1) 16MB x | NONE | NONE | NONE |
| | 36 | | | |
|-------+-------------+------------+------------+------------|
| 96MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | NONE |
| | | 36 | 36 | |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 8M x 36 | (1) 8M x | (1) 8M x | (1) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | (1) 16MB x | (1) 16MB x | NONE | NONE |
| | 36 | 36 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | TAG |
|------------+---------------+---------------+---------------|
| 128KB | (4) 32K x 8 | NONE | (1) 8K 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) 64K x 8 | (4) 64K 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP18 | JP19 | JP20 |
|-------+-----------------+-----------------+----------------|
| 128KB | Open | pins 2 & 3 | pins 1 & 2 |
| | | closed | closed |
|-------+-----------------+-----------------+----------------|
| 256KB | Open | pins 1 & 2 | pins 1 & 2 |
| | | closed | closed |
|-------+-----------------+-----------------+----------------|
| 256KB | Open | pins 2 & 3 | pins 1 & 2 |
| | | closed | closed |
|-------+-----------------+-----------------+----------------|
| 512KB | Open | pins 2 & 3 | pins 2 & 3 |
| | | closed | closed |
|-------+-----------------+-----------------+----------------|
| 512KB | pins 1 & 2 | Open | pins 2 & 3 |
| | closed | | closed |
|-------+-----------------+-----------------+----------------|
| 1MB | pins 2 & 3 | Open | pins 2 & 3 |
| | closed | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP26 | JP40 | JP41 | JP43 | JP44 |
|---------------+--------+----------+--------+-------+-------|
| 80486SX | Open | 1 & 3, 2 | Open | Open | 1 & 2 |
| | | & 4 | | | |
|---------------+--------+----------+--------+-------+-------|
| CX486S2 | Open | 1 & 3, 2 | Closed | 2 & 3 | 2 & 3 |
| | | & 4 | | | |
|---------------+--------+----------+--------+-------+-------|
| CX486DX | Open | 1 & 3, 2 | Open | Open | 1 & 2 |
| | | & 4 | | | |
|---------------+--------+----------+--------+-------+-------|
| 80486DX/DX2 | Open | 1 & 3, 2 | Open | Open | 1 & 2 |
| | | & 4 | | | |
|---------------+--------+----------+--------+-------+-------|
| 80486DX4 | Closed | 3 & 5, 4 | Open | Open | 1 & 2 |
| | | & 6 | | | |
|---------------+--------+----------+--------+-------+-------|
| Pentium | Open | 1 & 3, 2 | Open | 1 & 2 | 2 & 3 |
| Overdrive | | & 4 | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP45 | JP46 | JP47 | JP48 | JP54 |
|---------------+----------+-------+-------+--------+--------|
| 80486SX | Open | Open | Open | 2 & 3 | Open |
|---------------+----------+-------+-------+--------+--------|
| CX486S2 | 3 & 4 | 4 & 5 | Open | 2 & 3 | Closed |
|---------------+----------+-------+-------+--------+--------|
| CX486DX | Open | Open | 2 & 3 | 1 & 2, | Open |
| | | | | 3 & 4 | |
|---------------+----------+-------+-------+--------+--------|
| 80486DX/DX2 | Open | Open | 2 & 3 | 1 & 2, | Open |
| | | | | 3 & 4 | |
|---------------+----------+-------+-------+--------+--------|
| 80486DX4 | Open | Open | 2 & 3 | 1 & 2, | Open |
| | | | | 3 & 4 | |
|---------------+----------+-------+-------+--------+--------|
| Pentium | 1 & 2, 3 | 1 & 2 | 2 & 3 | 1 & 2, | Open |
| Overdrive | & 4 | | | 3 & 4 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP15 | JP25 | JP28 | JP29 |
|---------+--------+--------+-------------------+------------|
| 25MHz | Closed | Open | pins 1 & 2 closed | pins 2 & 3 |
| | | | | closed |
|---------+--------+--------+-------------------+------------|
| 33MHz | Open | Open | pins 2 & 3 closed | pins 1 & 2 |
| | | | | closed |
|---------+--------+--------+-------------------+------------|
| 40MHz | Open | Closed | pins 1 & 2 closed | pins 2 & 3 |
| | | | | closed |
|---------+--------+--------+-------------------+------------|
| 50iMHz | Closed | Open | pins 1 & 2 closed | pins 2 & 3 |
| | | | | closed |
|---------+--------+--------+-------------------+------------|
| 66iMHz | Open | Open | pins 2 & 3 closed | pins 1 & 2 |
| | | | | closed |
|---------+--------+--------+-------------------+------------|
| 75iMHz | Closed | Open | pins 1 & 2 closed | pins 2 & 3 |
| | | | | closed |
|---------+--------+--------+-------------------+------------|
| 100iMHz | Open | Open | pins 2 & 3 closed | pins 1 & 2 |
| | | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VESA BUS SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP52 | JP53 | JP56 |
|------------+-------------+-------------+-------------------|
| 25MHz | Open | Open | pins 2 & 3 closed |
|------------+-------------+-------------+-------------------|
| 33MHz | Open | Open | pins 2 & 3 closed |
|------------+-------------+-------------+-------------------|
| 40MHz | Closed | Closed | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PCI MODE CONFIGURATION |
|------------------------------------------------------------|
| Mode | JP11 | JP30 | JP31 | JP33 |
|--------------+--------+------------+-----------+-----------|
| Synchronous | Open | pins 2 & 3 | pins 2 & | pins 2 & |
| | | closed | 3 closed | 3 closed |
|--------------+--------+------------+-----------+-----------|
| Asynchronous | Closed | pins 2 & 3 | pins 1 & | pins 2 & |
| | | closed | 2 closed | 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PCI IRQ CONFIGURATION |
|------------------------------------------------------------|
| PCI | JP21A(IRQ9) | JP21B | JP21C | JP21D | JP21E |
| slot | | (IRQ10) | (IRQ11) | (IRQ12) | (IRQ15) |
|------+-------------+---------+---------+---------+---------|
| P0 & | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
| P1 | | | | | |
|------+-------------+---------+---------+---------+---------|
| P2 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
| Slots P0 & P1 are PCI compliant and slot P2 is non PCI |
| compliant. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PCI IRQ CONFIGURATION |
|------------------------------------------------------------|
| PCI slot | JP21F (IRQ14) |
|----------------------------------+-------------------------|
| P3 (PCI compliant) | Closed |
|----------------------------------+-------------------------|
| P3 (non PCI compliant) | Open |
|------------------------------------------------------------|
| Note: This setting is used only for cards that require the |
| use of IRQ14. |
+------------------------------------------------------------+