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# AQUARIUS SYSTEMS, INC.
MB-4DUVC MODEL 1
Processor CX486S/80486SX/SL80486SX/80486SX2/SL80486SX2/CX486DX/AM486DX/
80486DX/SL80486DX/UMCU5S/CX486DX2/AM486DX2/(SL)AM486DX2/
(SL)AM486DXL2/SL80486DX2/P24D/AM486DX4/(SL)am486dxl4/80486DX4/
Pentium Overdrive/CXM1
Processor 25/33/40/50(internal)/50/66(internal)/75(internal)100(internal)MHz
Speed
Chip Set UMC
Max. 64MB
Onboard
DRAM
Cache 64/128/256KB
BIOS Award
Dimensions 250mm x 220mm
I/O 32-bit VESA local bus slots (3), green PC connector
Options
NPU None
Options
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------------+----------+-----------------+----------|
| Turbo LED | D1 | Turbo switch | JP27 |
|--------------------+----------+-----------------+----------|
| External battery | JP1 | Speaker | JP28 |
|--------------------+----------+-----------------+----------|
| Green PC connector | JP25 | Power LED & | JP29 |
| | | keylock | |
|--------------------+----------+-----------------+----------|
| Reset switch | JP26 | 32-bit VESA | SL1 - |
| | | local bus slots | SL3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Jumper | Position |
|--------------------------------------+--------+------------|
| | Battery type select internal | JP1 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Battery type select external | JP1 | Closed |
|---+----------------------------------+--------+------------|
| | CMOS memory clear | JP1 | pins 3 & 4 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Flash BIOS voltage select 5v | JP2 | pins 1 & 2 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Flash BIOS voltage select 12v | JP2 | pins 2 & 3 |
| | | | closed |
|---+----------------------------------+--------+------------|
| | Keyboard controller IC U2 not | JP3 | Closed |
| | installed | | |
|---+----------------------------------+--------+------------|
| | Keyboard controller IC U2 | JP3 | Open |
| | installed | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 2MB | (4) 256K x 9 | (1) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 2MB | (4) 256K x 9 | NONE | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 2MB | NONE | (1) 512K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 2MB | NONE | NONE | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 3MB | (4) 256K x 9 | (1) 512K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 3MB | NONE | (1) 256K x 36 | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 4MB | (4) 1M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 4MB | NONE | (1) 512K x 36 | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 4MB | (4) 256K x 9 | (1) 512K x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 4MB | NONE | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 4MB | NONE | NONE | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 5MB | (4) 1M x 9 | (1) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 5MB | (4) 1M x 9 | NONE | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 5MB | (4) 256K x 9 | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 6MB | (4) 1M x 9 | (1) 512K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 6MB | NONE | (1) 1M x 36 | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 8MB | NONE | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 8MB | (4) 1M x 9 | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 8MB | (4) 1M x 9 | NONE | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 9MB | (4) 256K x 9 | (1) 2M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 9MB | (4) 256K x 9 | (1) 1M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 10MB | (4) 1M x 9 | (1) 512K x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 12MB | (4) 1M x 9 | (1) 2M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 12MB | NONE | (1) 2M x 36 | (1) 1M x 36 |
|------------+---------------+---------------+---------------|
| 13MB | (4) 1M x 9 | (1) 2M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 16MB | NONE | (1) 2M x 36 | (1) 2M x 36 |
|------------+---------------+---------------+---------------|
| 16MB | (4) 4M x 9 | NONE | NONE |
|------------+---------------+---------------+---------------|
| 17MB | (4) 4M x 9 | (1) 256K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 17MB | NONE | (1) 4M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 18MB | (4) 256K x 9 | (1) 4M x 36 | (1) 256K x 36 |
|------------+---------------+---------------+---------------|
| 18MB | (4) 4M x 9 | (1) 512K x 36 | NONE |
|------------+---------------+---------------+---------------|
| 18MB | NONE | (1) 4M x 36 | (1) 512K x 36 |
|------------+---------------+---------------+---------------|
| 19MB | (4) 4M x 9 | (1) 512K x 36 | (1) 256K x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 20MB | (4) 4M x 9 | (1) 1M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 20MB | (4) 1M x 9 | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 24MB | NONE | (1) 2M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 24MB | (4) 4M x 9 | (1) 2M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 32MB | (4) 4M x 9 | (1) 4M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 32MB | NONE | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 36MB | (4) 1M x 9 | (1) 8M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 36MB | (4) 1M x 9 | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 48MB | (4) 4M x 9 | (1) 4M x 36 | (1) 4M x 36 |
|------------+---------------+---------------+---------------|
| 48MB | (4) 4M x 9 | (1) 8M x 36 | NONE |
|------------+---------------+---------------+---------------|
| 64MB | NONE | (1) 8M x 36 | (1) 8M x 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 (A) | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
|-------------+---------------+---------------+--------------|
| 256KB (B) | (4) 64K x 8 | NONE | (1) 32K x 8 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | JP7 | JP8 | JP9 | JP10 |
|------------+----------+----------+---------------+---------|
| 64KB | Open | Open | Open | 2 & 3 |
|------------+----------+----------+---------------+---------|
| 128KB | Open | Closed | 1 & 2 | 1 & 2 |
|------------+----------+----------+---------------+---------|
| 256KB (A) | Closed | Closed | 2 & 3 | 2 & 3 |
|------------+----------+----------+---------------+---------|
| 256KB (B) | Closed | Closed | 1 & 2, 3 & 4 | 1 & 2 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION |
|------------------------------------------------------------|
| Type | JP11 | JP12 | JP13 |
|---------------+--------------+--------------+--------------|
| CX486S | 1 & 2, 3 & 4 | 1 & 2, 3 & | 2 & 3 |
| | | 4, 5 & 6 | |
|---------------+--------------+--------------+--------------|
| 80486SX | Open | 2 & 3 | 2 & 3 |
|---------------+--------------+--------------+--------------|
| SL80486SX | 1 & 2 | 1 & 2 | 2 & 3 |
|---------------+--------------+--------------+--------------|
| 80486SX2 | Open | 2 & 3 | 2 & 3 |
|---------------+--------------+--------------+--------------|
| SL80486SX2 | 1 & 2 | 1 & 2 | 2 & 3 |
|---------------+--------------+--------------+--------------|
| CX486DX | 1 & 2, 3 & 4 | 1 & 2, 3 & | 1 & 2, 3 & 4 |
| | | 4, 5 & 6 | |
|---------------+--------------+--------------+--------------|
| AM486DX | Open | 2 & 3 | 1 & 2, 3 & 4 |
|---------------+--------------+--------------+--------------|
| 80486DX | Open | 2 & 3 | 1 & 2, 3 & 4 |
|---------------+--------------+--------------+--------------|
| SL80486DX | 1 & 2 | 1 & 2 | 1 & 2, 3 & 4 |
|---------------+--------------+--------------+--------------|
| UMC U5S | 2 & 3 | 2 & 3 | 2 & 3 |
|---------------+--------------+--------------+--------------|
| CX486DX2 | 1 & 2, 3 & 4 | 1 & 2, 3 & | 1 & 2, 3 & 4 |
| | | 4, 5 & 6 | |
|---------------+--------------+--------------+--------------|
| AM486DX2 | Open | 2 & 3 | 1 & 2, 3 & 4 |
|---------------+--------------+--------------+--------------|
| (SL)AM486DX2 | Open | 2 & 3 | 1 & 2, 3 & 4 |
|---------------+--------------+--------------+--------------|
| (SL)AM486DXL2 | 2 & 3 | 2 & 3 | 1 & 2, 3 & 4 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP11 | JP12 | JP13 |
|---------------+--------------+--------------+--------------|
| SL80486DX2 | 1 & 2 | 1 & 2 | 1 & 2, 3 & 4 |
|---------------+--------------+--------------+--------------|
| P24D | 1 & 2, 4 & 5 | 1 & 2, 4 & 5 | 1 & 2, 3 & 4 |
|---------------+--------------+--------------+--------------|
| AM486DX4 (2x) | Open | 2 & 3 | 1 & 2, 3 & 4 |
|---------------+--------------+--------------+--------------|
| AM486DX4 (3x) | Open | 2 & 3 | 1 & 2, 3 & 4 |
|---------------+--------------+--------------+--------------|
| (SL)AM486DXL4 | 2 & 3 | 2 & 3 | 1 & 2, 3 & 4 |
| (2x) | | | |
|---------------+--------------+--------------+--------------|
| (SL)AM486DXL4 | 2 & 3 | 2 & 3 | 1 & 2, 3 & 4 |
| (3x) | | | |
|---------------+--------------+--------------+--------------|
| 80486DX4 | 1 & 2 | 1 & 2 | 1 & 2, 3 & 4 |
|---------------+--------------+--------------+--------------|
| Pentium | 1 & 2 | 1 & 2 | 1 & 2, 3 & 4 |
| Overdrive | | | |
|---------------+--------------+--------------+--------------|
| CX M1 | 1 & 2, 4 & 5 | 1 & 2, 3 & 4 | 1 & 2, 3 & 4 |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Type | JP17 | JP18 | JP19 | JP35 |
|------------------+----------+----------+----------+--------|
| CX486S | Open | 2 & 3, 4 | 2 & 3, 4 | Open |
| | | & 5 | & 5 | |
|------------------+----------+----------+----------+--------|
| 80486SX | Open | Open | Open | Open |
|------------------+----------+----------+----------+--------|
| SL80486SX | Open | 5 & 6 | 1 & 2, 3 | Open |
| | | | & 4 | |
|------------------+----------+----------+----------+--------|
| 80486SX2 | Open | Open | Open | Open |
|------------------+----------+----------+----------+--------|
| SL80486SX2 | Open | 5 & 6 | 1 & 2, 3 | Open |
| | | | & 4 | |
|------------------+----------+----------+----------+--------|
| CX486DX | 1 & 2 | 2 & 3, 4 | 2 & 3 | Open |
| | | & 5 | | |
|------------------+----------+----------+----------+--------|
| AM486DX | 1 & 2 | Open | Open | Open |
|------------------+----------+----------+----------+--------|
| 80486DX | 1 & 2 | Open | Open | Open |
|------------------+----------+----------+----------+--------|
| SL80486DX | 1 & 2 | 5 & 6 | 1 & 2, 3 | Open |
| | | | & 4 | |
|------------------+----------+----------+----------+--------|
| UMC U5S | 3 & 4 | 1 & 2 | Open | Open |
|------------------+----------+----------+----------+--------|
| CX486DX2 | 1 & 2 | 2 & 3, 4 | 2 & 3 | Open |
| | | & 5 | | |
|------------------+----------+----------+----------+--------|
| AM486DX2 | 1 & 2 | Open | Open | Open |
|------------------+----------+----------+----------+--------|
| (SL)AM486DX2 | 1 & 2 | Open | Open | Closed |
|------------------+----------+----------+----------+--------|
| (SL)AM486DXL2 | 1 & 2, 3 | 1 & 2 | Open | Open |
| | & 4 | | | |
|------------------+----------+----------+----------+--------|
| SL80486DX2 | 1 & 2 | 5 & 6 | 1 & 2, 3 | Open |
| | | | & 4 | |
|------------------+----------+----------+----------+--------|
| P24D | 1 & 2 | 3 & 4, 5 | 1 & 2, 3 | Open |
| | | & 6 | & 4 | |
|------------------+----------+----------+----------+--------|
| AM486DX4 (2x) | 1 & 2 | Open | Open | Closed |
|------------------+----------+----------+----------+--------|
| AM486DX4 (3x) | 1 & 2 | Open | Open | Open |
|------------------+----------+----------+----------+--------|
| (SL)AM486DXL4 | 1 & 2, 3 | 1 & 2 | Open | Closed |
| (2x) | & 4 | | | |
|------------------+----------+----------+----------+--------|
| (SL)AM486DXL4 | 1 & 2, 3 | 1 & 2 | Open | Open |
| (3x) | & 4 | | | |
|------------------+----------+----------+----------+--------|
| 80486DX4 | 1 & 2 | 5 & 6 | 1 & 2, 3 | Open |
| | | | & 4 | |
|------------------+----------+----------+----------+--------|
| Pentium | 2 & 3 | 5 & 6 | 1 & 2, 3 | Open |
| Overdrive | | | & 4 | |
|------------------+----------+----------+----------+--------|
| CX M1 | 1 & 2 | 3 & 4, 5 | 1 & 2, 3 | Open |
| | | & 6 | & 4 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | JP4 | JP5 | JP6 |
|---------------+--------------+--------------+--------------|
| 25MHz | Open | Open | Closed |
|---------------+--------------+--------------+--------------|
| 33MHz | Closed | Closed | Closed |
|---------------+--------------+--------------+--------------|
| 40MHz | Open | Closed | Closed |
|---------------+--------------+--------------+--------------|
| 50iMHz | Open | Open | Closed |
|---------------+--------------+--------------+--------------|
| 50MHz | Closed | Open | Open |
|---------------+--------------+--------------+--------------|
| 66iMHz | Closed | Closed | Closed |
|---------------+--------------+--------------+--------------|
| 75iMHz | Open | Open | Closed |
|---------------+--------------+--------------+--------------|
| 100iMHz | Closed | Closed | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED CONFIGURATION (CX M1 & DX4 ONLY) |
|------------------------------------------------------------|
| Speed | JP20 |
|----------------------------+-------------------------------|
| CX M1 | pins 4 & 5 closed |
|----------------------------+-------------------------------|
| Intel CPU 2x | pins 2 & 3 closed |
|----------------------------+-------------------------------|
| CX CPU 2x | pins 2 & 3, 4 & 5 closed |
|----------------------------+-------------------------------|
| Intel CPU 2.5x | pins 1 & 2 closed |
|----------------------------+-------------------------------|
| Intel CPU 3x | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE CONFIGURATION |
|------------------------------------------------------------|
|Voltage | JP14 | JP15 | JP16 | JP23 | JP32 | JP33 | JP34 |
|--------+-------+------+------+-------+-------+------+------|
| 3.3v | 1 & 2 |1 & 2 |1 & 2 | Open |Closed | Open | Open |
|--------+-------+------+------+-------+-------+------+------|
| 3.45v | 1 & 2 |1 & 2 |1 & 2 |Closed | Open | Open | Open |
|--------+-------+------+------+-------+-------+------+------|
| 3.6v | 1 & 2 |1 & 2 |1 & 2 | Open | Open |Closed| Open |
|--------+-------+------+------+-------+-------+------+------|
| 4v | 1 & 2 |1 & 2 |1 & 2 | Open | Open | Open |Closed|
|--------+-------+------+------+-------+-------+------+------|
| 5v | 2 & 3 |2 & 3 |2 & 3 | Open | Open | Open | Open |
|------------------------------------------------------------|
|Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VL BUS WAIT STATE CONFIGURATION |
|------------------------------------------------------------|
| Wait states | JP22 |
|-------------------------------+----------------------------|
| 0 wait states | Open |
|-------------------------------+----------------------------|
| 1 wait state | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VL BUS SPEED CONFIGURATION |
|------------------------------------------------------------|
| CPU speed | JP21 |
|-------------------------------+----------------------------|
| <= 33MHz | Open |
|-------------------------------+----------------------------|
| > 33MHz | Closed |
+------------------------------------------------------------+