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# ACER, INC.
ACERPOWER ULTIMA (M3A), M3A
Device Type Mainboard
Processor Pentium
Processor Speed 75/90/100/120/133/150/166/200MHz
Chip Set Intel 440HX
Maximum Onboard 192MB (EDO supported)
Memory
Cache 256/512KB
BIOS Acer
Dimensions 330mm x 218mm
I/O Options 32-bit PCI slots (4), floppy drive interface,
IDE interfaces (2), parallel port, PS/2 mouse
port, serial ports (2), USB connector
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Parallel port | CN1 | IDE interface | CN12 |
| | | LED | |
|-------------------+----------+------------------+----------|
| Soft off power | CN2 | Speaker | CN13 |
| supply | | | |
|-------------------+----------+------------------+----------|
| IDE interface 1 | CN4 | Power LED & | CN14 |
| | | keylock | |
|-------------------+----------+------------------+----------|
| IDE interface 2 | CN5 | LED board | CN15 |
| | | connector | |
|-------------------+----------+------------------+----------|
| USB connector | CN7 | CPU fan power | FA1 |
|-------------------+----------+------------------+----------|
| Serial port 2 | CN8 | PS/2 mouse port | MS1 |
|-------------------+----------+------------------+----------|
| Serial port 1 | CN9 | 32-bit PCI slots | PC1 – |
| | | | PC4 |
|-------------------+----------+------------------+----------|
| Floppy drive | CN10 | SCSI/ASM slot | SL1 |
| interface | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| | Factory configured – do not | CN6 | Unidentified |
| | alter | | |
|---+---------------------------------+-------+--------------|
| | BIOS type select Acer | JP1 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | BIOS type select OEM | JP1 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Password enabled | JP2 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Password disabled | JP2 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Buzzer enabled | JP3 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | External speaker enabled | JP3 | Pins 2 & 3 |
| | | | closed |
|------------------------------------------------------------|
| Note: The location of CN6 is unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 8MB | (2) 1M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 16MB | (2) 2M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 24MB | (2) 1M x 36 | (2) 1M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 32MB | (2) 4M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 48MB | (2) 4M x 36 | (2) 1M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 56MB | (2) 4M x 36 | (2) 2M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 64MB | (2) 8M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 80MB | (2) 8M x 36 | (2) 1M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 88MB | (2) 8M x 36 | (2) 2M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 96MB | (2) 4M x 36 | (2) 4M x 36 | (2) 4M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 |
|------------+---------------+---------------+---------------|
| 96MB | (2) 8M x 36 | (2) 2M x 36 | (2) 2M x 36 |
|------------+---------------+---------------+---------------|
| 104MB | (2) 8M x 36 | (2) 4M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 112MB | (2) 8M x 36 | (2) 4M x 36 | (2) 2M x 36 |
|------------+---------------+---------------+---------------|
| 128MB | (2) 8M x 36 | (2) 4M x 36 | (2) 4M x 36 |
|------------+---------------+---------------+---------------|
| 128MB | (2) 16M x 36 | None | None |
|------------+---------------+---------------+---------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 | None |
|------------+---------------+---------------+---------------|
| 136MB | (2) 8M x 36 | (2) 8M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 136MB | (2) 16M x 36 | (2) 1M x 36 | None |
|------------+---------------+---------------+---------------|
| 144MB | (2) 16M x 36 | (2) 2M x 36 | None |
|------------+---------------+---------------+---------------|
| 144MB | (2) 16M x 36 | (2) 1M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 152MB | (2) 16M x 36 | (2) 2M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 160MB | (2) 16M x 36 | (2) 4M x 36 | None |
|------------+---------------+---------------+---------------|
| 160MB | (2) 16M x 36 | (2) 2M x 36 | (2) 2M x 36 |
|------------+---------------+---------------+---------------|
| 168MB | (2) 16M x 36 | (2) 4M x 36 | (2) 1M x 36 |
|------------+---------------+---------------+---------------|
| 176MB | (2) 16M x 36 | (2) 4M x 36 | (2) 2M x 36 |
|------------+---------------+---------------+---------------|
| 192MB | (2) 16M x 36 | (2) 8M x 36 | None |
|------------+---------------+---------------+---------------|
| 192MB | (2) 16M x 36 | (2) 4M x 36 | (2) 4M x 36 |
|------------------------------------------------------------|
| Note: Board accepts EDO memory. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | TAG |
|------------------+--------------------+--------------------|
| 256KB | (2) 32K x 32 | Unidentified |
|------------------+--------------------+--------------------|
| 512KB | (2) 64K x 32 | Unidentified |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| CPU | Clock | Multiplier | JP4 | JP5 | JP6 |
| speed | speed | | | | |
|----------+---------+------------+-------+----------+-------|
| 75MHz | 50MHz | 1.5x | 2 & 3 | 1 & 2, 4 | 2 & 3 |
| | | | | & 5 | |
|----------+---------+------------+-------+----------+-------|
| 90MHz | 60MHz | 1.5x | 2 & 3 | 1 & 2, 3 | 2 & 3 |
| | | | | & 4 | |
|----------+---------+------------+-------+----------+-------|
| 100MHz | 66MHz | 1.5x | 2 & 3 | 2 & 3, 4 | 2 & 3 |
| | | | | & 5 | |
|----------+---------+------------+-------+----------+-------|
| 120MHz | 60MHz | 2x | 2 & 3 | 1 & 2, 3 | 1 & 2 |
| | | | | & 4 | |
|----------+---------+------------+-------+----------+-------|
| 133MHz | 66MHz | 2x | 2 & 3 | 2 & 3, 4 | 1 & 2 |
| | | | | & 5 | |
|----------+---------+------------+-------+----------+-------|
| 150MHz | 60MHz | 2.5x | 1 & 2 | 1 & 2, 3 | 1 & 2 |
| | | | | & 4 | |
|----------+---------+------------+-------+----------+-------|
| 166MHz | 66MHz | 2.5x | 1 & 2 | 2 & 3, 4 | 1 & 2 |
| | | | | & 5 | |
|----------+---------+------------+-------+----------+-------|
| 200MHz | 66MHz | 3x | 1 & 2 | 2 & 3, 4 | 2 & 3 |
| | | | | & 5 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU TYPE SELECTION |
|------------------------------------------------------------|
| Type | JP7 | JP8 | JP9 |
|------+-----------------+-----------------+-----------------|
| P54C | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
|------+-----------------+-----------------+-----------------|
| P55C | Pins 2 & 3 | Pins 2 & 3 | Pins 2 & 3 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JP11 |
|----------------------------+-------------------------------|
| 3.3v | Pins 2 & 3 closed |
|----------------------------+-------------------------------|
| 3.45v | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| GREEN PC/RESET SELECTION |
|------------------------------------------------------------|
| Setting | JP10 |
|-------------------------------+----------------------------|
| Green PC enabled | Pins 1 & 2 closed |
|-------------------------------+----------------------------|
| Reset enabled | Pins 2 & 3 closed |
|-------------------------------+----------------------------|
| Additional reset switch | Pins 3 & 4 closed |
+------------------------------------------------------------+