TEXT View Source
# ACER, INC.
V12LC-2
Device Type Mainboard
Processor CX 6X86/AM K5/Pentium
Processor Speed 75/90/100/120/133/150MHz
Chip Set Unidentified
Video Chip Set Cirrus Logic
Maximum Onboard 128MB
Memory
Maximum Video 2MB
Memory
Cache 256KB
BIOS Unidentified
Dimensions 330mm x 218mm
I/O Options bus mouse port, Ethernet 10BaseT connector,
(backplane) floppy drive interface, green PC connector,
IDE interfaces (2), parallel port, PS/2 mouse
interface, PS/2 keyboard interface, serial
ports (2), VGA feature connector, VGA port,
riser slot
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|--------------+-------------+--------------------+----------|
| VGA feature | CN1 | IDE interface LED | CN8 |
| connector | | | |
|--------------+-------------+--------------------+----------|
| IDE | CN2 | Network/multimedia | CN10 |
| interface 1 | | interface | |
|--------------+-------------+--------------------+----------|
| IDE | CN3 | VGA port | CN27 |
| interface 2 | | | |
|--------------+-------------+--------------------+----------|
| Floppy drive | CN4 | Parallel port | CN28 |
| interface | | | |
|--------------+-------------+--------------------+----------|
| Power LED & | CN6/pins 1 | Serial port 2 | CN29 |
| keylock | - 5 | | |
|--------------+-------------+--------------------+----------|
| Speaker | CN6/pins 7 | Serial port 1 | CN30 |
| | - 10 | | |
|--------------+-------------+--------------------+----------|
| Turbo LED | CN6/pins 12 | PS/2 mouse | CN31 |
| | & 13 | interface | |
|--------------+-------------+--------------------+----------|
| Turbo switch | CN6/pins 15 | PS/2 keyboard | CN32 |
| | - 17 | interface | |
|--------------+-------------+--------------------+----------|
| Reset switch | CN6/pins 19 | RJ-45 phone jack | CN33 |
| | & 20 | | |
|--------------+-------------+--------------------+----------|
| Power LED & | CN7/pins 1 | Riser slot | SL1 |
| keylock | - 4 | | |
|--------------+-------------+--------------------+----------|
| Reset switch | CN7/pins 6 | | |
| | & 7 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|--------------------------------+-------+-------------------|
| » | Factory configured - do | CN9 | Reserved |
| | not alter | | |
|---+----------------------------+-------+-------------------|
| » | BIOS type select Acer | JP1 | Pins 1 & 2 closed |
|---+----------------------------+-------+-------------------|
| | BIOS type select OEM | JP1 | Pins 2 & 3 closed |
|---+----------------------------+-------+-------------------|
| » | Password disabled | JP2 | Pins 2 & 3 closed |
|---+----------------------------+-------+-------------------|
| | Password enabled | JP2 | Pins 1 & 2 closed |
|---+----------------------------+-------+-------------------|
| » | BIOS ROM type select flash | JP3 | Pins 2 & 3 closed |
| | ROM | | |
|---+----------------------------+-------+-------------------|
| | BIOS ROM type select EPROM | JP3 | Pins 1 & 2 closed |
|---+----------------------------+-------+-------------------|
| » | Onboard SMC665/669 enabled | JP6 | Pins 2 & 3 closed |
|---+----------------------------+-------+-------------------|
| | Onboard SMC665/669 | JP6 | Pins 1 & 2 closed |
| | disabled | | |
|---+----------------------------+-------+-------------------|
| » | CPU type select P54C or | JP12 | Pins 1 & 2 closed |
| | AMD K5 | | |
|---+----------------------------+-------+-------------------|
| | CPU type select Cyrix M1 | JP12 | Pins 2 & 3 closed |
|---+----------------------------+-------+-------------------|
| » | Reset function | JP15 | Pins 2 & 3 closed |
|---+----------------------------+-------+-------------------|
| | Suspend mode function | JP15 | Pins 1 & 2 closed |
|---+----------------------------+-------+-------------------|
| » | Factory configured - do | JP19 | Open |
| | not alter | | |
|---+----------------------------+-------+-------------------|
| » | Flash ROM control select | JP20 | Pins 2 & 3 closed |
| | normal work | | |
|---+----------------------------+-------+-------------------|
| | Flash ROM control select | JP20 | Pins 1 & 2 closed |
| | boot block | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SIMM 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: Cache configuration is unidentified. |
+--------------------------------------------+
+------------------------------------------------------------+
| VIDEO MEMORY CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 1MB | (2) 256K x 16 | None |
|------------------+--------------------+--------------------|
| 2MB | (2) 256K x 16 | (2) 256K x 16 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU SPEED SELECTION |
|------------------------------------------------------------|
| Speed | JP8 |
|------------------------------+-----------------------------|
| 75MHz | Pins 1 & 4 closed |
|------------------------------+-----------------------------|
| 90MHz | Pins 2 & 5 closed |
|------------------------------+-----------------------------|
| 100MHz | Pins 3 & 6 closed |
|------------------------------+-----------------------------|
| 120MHz | Pins 2 & 5 closed |
|------------------------------+-----------------------------|
| 133MHz | Pins 3 & 6 closed |
|------------------------------+-----------------------------|
| 150MHz | Pins 2 & 5 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU MULTIPLIER SELECTION (INTEL) |
|------------------------------------------------------------|
| Multiplier | JP14 | JP18 |
|------------------+--------------------+--------------------|
| » 1.5x | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 2x | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 2.5x | Pins 2 & 3 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 3x | Pins 1 & 2 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU MULTIPLIER SELECTION (CX 6X86 & AM K5) |
|------------------------------------------------------------|
| Multiplier | JP14 | JP18 |
|------------------+--------------------+--------------------|
| » 1x, 1.5x, 3x | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 1x | Pins 2 & 3 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| 1x, 1.5x, 3x | Pins 1 & 2 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 1x | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU VOLTAGE SELECTION |
|------------------------------------------------------------|
| Voltage | JP13 |
|----------------------------+-------------------------------|
| » 3.3825v | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 3.5250v | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CN1 CONNECTOR SELECTION |
|------------------------------------------------------------|
| Setting | JP16 | JP17 |
|--------------------+-------------------+-------------------|
| » Feature | Pins 1 & 2 closed | Pins 1 & 2 closed |
| connector | | |
|--------------------+-------------------+-------------------|
| I2C connector | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+