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# ACER, INC.
V12C
Processor Pentium
Processor Speed 60MHz
Chip Set Intel
Video Chip Set None
Maximum Onboard 128MB
Memory
Maximum Video None
Memory
Cache 256KB
BIOS Acer
Dimensions 330mm x 218mm
I/O Options 32-bit PCI slots (3), floppy drive interface,
IDE interface, parallel port, PS/2 mouse
port, serial ports (2)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------+------------+-------------------+----------|
| ID3P Power LED | C03 pins 1 | Parallel port | CN3 |
| & keylock | - 4 | | |
|----------------+------------+-------------------+----------|
| ID3P Reset | C03 pins 7 | Floppy drive | CN4 |
| switch | & 8 | interface | |
|----------------+------------+-------------------+----------|
| Power LED & | C04 pins 1 | IDE interface | CN5 |
| keylock | - 5 | | |
|----------------+------------+-------------------+----------|
| Speaker | C04 pins 7 | PS/2 mouse port | CN7 |
| | - 10 | | |
|----------------+------------+-------------------+----------|
| Turbo LED | C04 pins | IDE interface LED | J1 |
| | 12 & 13 | | |
|----------------+------------+-------------------+----------|
| Turbo switch | C04 pins | Chassis fan power | J2 |
| | 15 - 17 | | |
|----------------+------------+-------------------+----------|
| Reset switch | C04 pins | Keyboard & PS/2 | J3 |
| | 19 & 20 | mouse connector | |
|----------------+------------+-------------------+----------|
| Serial port 1 | CN1 | 32-bit PCI slots | PC1 - |
| | | | PC3 |
|----------------+------------+-------------------+----------|
| Serial port 2 | CN2 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-------------------------------------+-------+--------------|
| » | Factory configured - do not | CN6 | Pins 1 & 3, |
| | alter | | 2 & 4 closed |
|---+---------------------------------+-------+--------------|
| | MIO CTLR enabled | JP4 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | MIO CTLR disabled | JP4 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | BIOS type select Acer | JP5 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | BIOS type select OEM | JP5 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Password disabled | JP6 | Pins 2 & 3 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | Password enabled | JP6 | Pins 1 & 2 |
| | | | closed |
|---+---------------------------------+-------+--------------|
| | PS/2 mouse IRQ12 enabled | JP9 | Closed |
|---+---------------------------------+-------+--------------|
| | PS/2 mouse IRQ12 disabled | JP9 | Open |
|---+---------------------------------+-------+--------------|
| | ECP mode enabled | JP10 | Closed |
|---+---------------------------------+-------+--------------|
| | ECP mode disabled | JP10 | Open |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP13 | Pins 2 & 3 |
| | alter | | closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP14 | Pins 2 & 3 |
| | alter | | closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP15 | Pins 1 & 2 |
| | alter | | closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP16 | Pins 2 & 3 |
| | alter | | closed |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | JP17 | Pins 1 & 2 |
| | alter | | closed |
|---+---------------------------------+-------+--------------|
| » | P54C pipeline enabled | JP21 | Closed |
|---+---------------------------------+-------+--------------|
| | P54C pipeline disabled | JP21 | Open |
|---+---------------------------------+-------+--------------|
| » | Cache type select write back | JP22 | Closed |
|---+---------------------------------+-------+--------------|
| | Cache type select write through | JP22 | Open |
|---+---------------------------------+-------+--------------|
| » | Keylock disabled | JP23 | Closed |
|---+---------------------------------+-------+--------------|
| | Keylock enabled | JP23 | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 8MB | (2) 1M x 36 | None |
|------------------+--------------------+--------------------|
| 16MB | (2) 2M x 36 | None |
|------------------+--------------------+--------------------|
| 16MB | (2) 1M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 24MB | (2) 2M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 32MB | (2) 4M x 36 | None |
|------------------+--------------------+--------------------|
| 32MB | (2) 2M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 40MB | (2) 4M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 48MB | (2) 4M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 64MB | (2) 8M x 36 | None |
|------------------+--------------------+--------------------|
| 64MB | (2) 4M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 72MB | (2) 8M x 36 | (2) 1M x 36 |
|------------------+--------------------+--------------------|
| 80MB | (2) 8M x 36 | (2) 2M x 36 |
|------------------+--------------------+--------------------|
| 96MB | (2) 8M x 36 | (2) 4M x 36 |
|------------------+--------------------+--------------------|
| 128MB | (2) 8M x 36 | (2) 8M x 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Note: 256KB cache is factory installed and is not |
| configurable. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| Speed | JP18 |
|----------------------------+-------------------------------|
| 60MHz | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU MULTIPLIER SELECTION |
|------------------------------------------------------------|
| Multiplier | JP24 |
|----------------------------+-------------------------------|
| 1.5x | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 2x | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DMA CHANNEL SELECTION |
|------------------------------------------------------------|
| Channel | JP8 | JP12 |
|------------------+--------------------+--------------------|
| 1 | Pins 2 & 3 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 3 | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+