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# MAGITRONICS
A-BL2443G, A-BL2463, A-BL2483
Device Mainboard
Type
Processor CX486/80486SX/SL80486SX/CX486S/CX486DX/AM486DXL/
80486DX/SL80486DX/CX486DX2/80486DX2/SL80486DX2/P24C/
P24T
Processor 25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz
Speed
Chip Set ALI
Video Chip None
Set
Maximum 64MB
Onboard
Memory
Maximum None
Video
Memory
Cache 64/128/256KB
BIOS Unidentified
Dimensions 254mm x 218mm
I/O 32-bit VESA local bus slots (3), green PC connector
Options
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| External battery | BATT | Wake on modem | JG7 |
| | | connector | |
|-------------------+----------+------------------+----------|
| Power LED & | CN1 | Green PC | JG8 |
| keylock | | connector | |
|-------------------+----------+------------------+----------|
| Speaker | CN2 | Green PC | JG9 |
| | | connector | |
|-------------------+----------+------------------+----------|
| Reset switch | CN3 | Green PC | JG10 |
| | | connector | |
|-------------------+----------+------------------+----------|
| Turbo switch | CN4 | Green PC | JG11 |
| | | connector | |
|-------------------+----------+------------------+----------|
| Turbo LED | CN5 | 32-bit VESA | SL1 – |
| | | local bus slots | SL3 |
|-------------------+----------+------------------+----------|
| Green PC | JG6 | | |
| connector | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| | Battery type select internal | BATT | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Battery type select external | BATT | Open |
|---+---------------------------------+-------+--------------|
| | CMOS memory clear | BATT | Pins 3 & 4 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JX1 | Unidentified |
| | alter | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM 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) 1M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 4MB | (1) 256K x | (1) 256K x | (1) 256K x | (1) 256K x |
| | 36 | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 1M x 36 | (1) 256K x | None | None |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 5MB | (1) 256K x | (1) 1M x 36 | None | None |
| | 36 | | | |
|------+-------------+-------------+------------+------------|
| 6MB | (1) 1M x 36 | (1) 256K x | (1) 256K 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 |
|------+-------------+-------------+------------+------------|
| 12MB | (1) 2M x 36 | (1) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 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) 4M x 36 | None | None | None |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M x 36 | (1) 1M x 36 | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 16MB | (1) 2M 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 |
|------+-------------+-------------+------------+------------|
| 17MB | (1) 4M x 36 | (1) 256K x | None | None |
| | | 36 | | |
|------+-------------+-------------+------------+------------|
| 18MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | None |
| | | 36 | 36 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|------+-------------+-------------+------------+------------|
| 19MB | (1) 4M x 36 | (1) 256K x | (1) 256K x | (1) 256K x |
| | | 36 | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 4M x 36 | (1) 1M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 2M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 20MB | (1) 1M x 36 | (1) 2M x 36 | (1) 2M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 4M x 36 | (1) 2M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 24MB | (1) 2M x 36 | (1) 4M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 28MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x | (1) 1M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 28MB | (1) 1M x 36 | (1) 2M x 36 | (1) 2M x | (1) 2M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 2M x 36 | (1) 2M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 4M x 36 | (1) 4M x 36 | None | None |
|------+-------------+-------------+------------+------------|
| 32MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x | (1) 2M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 36MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x | None |
| | | | 36 | |
|------+-------------+-------------+------------+------------|
| 40MB | (1) 4M x 36 | (1) 2M x 36 | (1) 2M x | (1) 2M x |
| | | | 36 | 36 |
|------+-------------+-------------+------------+------------|
| 48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x | None |
| | | | 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 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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 | JS1 | JS2 | JS3 | JS4 |
|-------+-------------+------------+------------+------------|
| 64KB | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed | closed |
|-------+-------------+------------+------------+------------|
| 128KB | Pins 2 & 3 | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 |
| | closed | closed | closed | closed |
|-------+-------------+------------+------------+------------|
| 256KB | Pins 2 & 3 | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 |
| | closed | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| Speed | JF1 | JF2 | JF3 | JC10 | JC11 | JC13 |
|---------+--------+--------+--------+-------+-------+-------|
| 25MHz | 2 & 3 | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 |
|---------+--------+--------+--------+-------+-------+-------|
| 33MHz | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
|---------+--------+--------+--------+-------+-------+-------|
| 40MHz | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
|---------+--------+--------+--------+-------+-------+-------|
| 50iMHz | 2 & 3 | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 |
|---------+--------+--------+--------+-------+-------+-------|
| 50MHz | 2 & 3 | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
|---------+--------+--------+--------+-------+-------+-------|
| 66iMHz | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
|---------+--------+--------+--------+-------+-------+-------|
| 75iMHz | 2 & 3 | 1 & 2 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 |
|---------+--------+--------+--------+-------+-------+-------|
| 100iMHz | 2 & 3 | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JC1 | JC2 | JC3 | JC4 | JC5 | JC6 |
|------------+--------+-------+-------+-------+-------+------|
| CX486 | Open | 1 & 2 | Open | 2 & 3 | 2 & 3 | 2 & |
| | | | | | | 3 |
|------------+--------+-------+-------+-------+-------+------|
| 80486SX | Closed | 1 & 2 | Open | 1 & 2 | Open | 2 & |
| | | | | | | 3 |
|------------+--------+-------+-------+-------+-------+------|
| SL80486SX | Closed | 1 & 2 | Open | 1 & 2 | Open | 2 & |
| | | | | | | 3 |
|------------+--------+-------+-------+-------+-------+------|
| CX486S | Open | 1 & 2 | Open | 2 & 3 | 2 & 3 | 2 & |
| | | | | | | 3 |
|------------+--------+-------+-------+-------+-------+------|
| CX486DX | Open | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 | 1 & |
| | | | | | | 2, 3 |
| | | | | | | & 4 |
|------------+--------+-------+-------+-------+-------+------|
| AM486DXL | Closed | 1 & 2 | 2 & 3 | 1 & 2 | Open | 1 & |
| | | | | | | 2, 3 |
| | | | | | | & 4 |
|------------+--------+-------+-------+-------+-------+------|
| 80486DX | Closed | 1 & 2 | 2 & 3 | 1 & 2 | Open | 1 & |
| | | | | | | 2, 3 |
| | | | | | | & 4 |
|------------+--------+-------+-------+-------+-------+------|
| SL80486DX | Closed | 1 & 2 | 2 & 3 | 1 & 2 | Open | 1 & |
| | | | | | | 2, 3 |
| | | | | | | & 4 |
|------------+--------+-------+-------+-------+-------+------|
| CX486DX2 | Open | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 | 1 & |
| | | | | | | 2, 3 |
| | | | | | | & 4 |
|------------+--------+-------+-------+-------+-------+------|
| 80486DX2 | Closed | 1 & 2 | 2 & 3 | 1 & 2 | Open | 1 & |
| | | | | | | 2, 3 |
| | | | | | | & 4 |
|------------+--------+-------+-------+-------+-------+------|
| SL80486DX2 | Closed | 1 & 2 | 2 & 3 | 1 & 2 | Open | 1 & |
| | | | | | | 2, 3 |
| | | | | | | & 4 |
|------------+--------+-------+-------+-------+-------+------|
| P24C | Closed | 1 & 2 | 2 & 3 | 1 & 2 | Open | 1 & |
| | | | | | | 2, 3 |
| | | | | | | & 4 |
|------------+--------+-------+-------+-------+-------+------|
| P24T | Closed | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & |
| | | | | | | 2, 3 |
| | | | | | | & 4 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION (CON’T) |
|------------------------------------------------------------|
| Type | JC7 | JC8 | JC9 | JC20 | JX2 | JX4 |
|------------+------+------+------+--------+--------+--------|
| CX486 | 2 & | Open | 2 & | Open | Closed | Closed |
| | 3 | | 3 | | | |
|------------+------+------+------+--------+--------+--------|
| 80486SX | Open | Open | Open | Open | Closed | Closed |
|------------+------+------+------+--------+--------+--------|
| SL80486SX | Open | Open | Open | Closed | Closed | Closed |
|------------+------+------+------+--------+--------+--------|
| CX486S | 2 & | Open | 2 & | Open | Closed | Closed |
| | 3 | | 3 | | | |
|------------+------+------+------+--------+--------+--------|
| CX486DX | Open | Open | 2 & | Open | Closed | Closed |
| | | | 3 | | | |
|------------+------+------+------+--------+--------+--------|
| AM486DXL | Open | Open | Open | Open | Closed | Closed |
|------------+------+------+------+--------+--------+--------|
| 80486DX | Open | Open | Open | Open | Closed | Closed |
|------------+------+------+------+--------+--------+--------|
| SL80486DX | Open | Open | Open | Closed | Closed | Closed |
|------------+------+------+------+--------+--------+--------|
| CX486DX2 | Open | Open | 2 & | Open | Closed | Closed |
| | | | 3 | | | |
|------------+------+------+------+--------+--------+--------|
| 80486DX2 | Open | Open | Open | Open | Closed | Closed |
|------------+------+------+------+--------+--------+--------|
| SL80486DX2 | Open | Open | Open | Closed | Closed | Closed |
|------------+------+------+------+--------+--------+--------|
| P24C | Open | Open | Open | Open | Open | Open |
|------------+------+------+------+--------+--------+--------|
| P24T | Open | 2 & | Open | Open | Closed | Closed |
| | | 3 | | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU MULTIPLIER SELECTION (P24C ONLY) |
|------------------------------------------------------------|
| Multiplier | JX3 |
|----------------------------+-------------------------------|
| 2x | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 3x | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SELECTION |
|------------------------------------------------------------|
| Type | JC12 | JC21 | JC22 | JG2 | JG3 |
|------------+---------+----------+----------+-------+-------|
| AMD | 1 & 2 | Open | Open | 1 & 2 | 1 & 2 |
|------------+---------+----------+----------+-------+-------|
| AM486DXL | 2 & 3 | Open | Open | 2 & 3 | 2 & 3 |
|------------+---------+----------+----------+-------+-------|
| CX486DX2 | 1 & 2 | Closed | Closed | 1 & 2 | 1 & 2 |
|------------+---------+----------+----------+-------+-------|
| CX486S | 1 & 2 | Closed | Closed | 1 & 2 | 1 & 2 |
|------------+---------+----------+----------+-------+-------|
| Cyrix | 1 & 2 | Open | Closed | 1 & 2 | 1 & 2 |
|------------+---------+----------+----------+-------+-------|
| Intel | 1 & 2 | Open | Open | 2 & 3 | 2 & 3 |
|------------+---------+----------+----------+-------+-------|
| Intel - S | 1 & 2 | Open | Open | 2 & 3 | 2 & 3 |
|------------+---------+----------+----------+-------+-------|
| P24C | 1 & 2 | Open | Open | 1 & 2 | 1 & 2 |
|------------+---------+----------+----------+-------+-------|
| P24T | 1 & 2 | Closed | Open | 2 & 3 | 2 & 3 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SELECTION (CON’T) |
|------------------------------------------------------------|
| Type | JG4 | JG5 | JG16 | JG19 | JG20 |
|------------+---------+---------+----------+--------+-------|
| AMD | 1 & 2 | 1 & 2 | Open | Open | Open |
|------------+---------+---------+----------+--------+-------|
| AM486DXL | 2 & 3 | 2 & 3 | Open | Open | Open |
|------------+---------+---------+----------+--------+-------|
| CX486DX2 | 1 & 2 | 1 & 2 | Open | Closed | 1 & 2 |
|------------+---------+---------+----------+--------+-------|
| CX486S | 1 & 2 | 1 & 2 | Open | Closed | 1 & 2 |
|------------+---------+---------+----------+--------+-------|
| Cyrix | 1 & 2 | 1 & 2 | Open | Closed | 1 & 2 |
|------------+---------+---------+----------+--------+-------|
| Intel | 2 & 3 | 2 & 3 | Open | Open | Open |
|------------+---------+---------+----------+--------+-------|
| Intel - S | 2 & 3 | 2 & 3 | Open | Open | 2 & 3 |
|------------+---------+---------+----------+--------+-------|
| P24C | 1 & 2 | Open | Closed | Open | Open |
|------------+---------+---------+----------+--------+-------|
| P24T | 2 & 3 | 2 & 3 | Open | Open | Open |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VL BUS WAIT STATE SELECTION |
|------------------------------------------------------------|
| Setting | J2 |
|-------------------------------+----------------------------|
| 0 | Open |
|-------------------------------+----------------------------|
| 1 | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VL BUS SPEED SELECTION |
|------------------------------------------------------------|
| Speed | J1 |
|-------------------------------+----------------------------|
| <= 33MHz | Open |
|-------------------------------+----------------------------|
| >33 MHz | Closed |
+------------------------------------------------------------+