ACER, INC.
V12LC
|
Device Type |
Mainboard |
|
Processor |
CX M1/AM K5/Pentium |
|
Processor Speed |
75/90/100/120/133/150MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
Cirrus Logic |
|
Maximum Onboard Memory |
128MB |
|
Maximum Video Memory |
2MB |
|
Cache |
256KB |
|
BIOS |
Acer |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
Ethernet 10BaseT connector, floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port, riser slot |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
VGA port |
C1 |
Power LED & keylock |
CN6/pins 1 - 5 |
|
Parallel port |
C2 |
Speaker |
CN6/pins 7 - 10 |
|
Serial port 2 |
C3 |
Turbo LED |
CN6/pins 12 & 13 |
|
Serial port 1 |
C4 |
Turbo switch |
CN6/pins 15 - 17 |
|
PS/2 mouse port |
C5 |
Reset switch |
CN6/pins 19 & 20 |
|
Ethernet 10BaseT connector |
C6 |
Power LED & keylock |
CN7/pins 1 - 4 |
|
VGA feature connector |
CN1 |
Reset switch |
CN7/pins 6 & 7 |
|
IDE interface 1 |
CN2 |
IDE interface LED |
CN8 |
|
IDE interface 2 |
CN3 |
Network/multimedia interface |
CN10 |
|
Floppy drive interface |
CN4 |
Riser slot |
SL1 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
|
Factory configured - do not alter |
CN9 |
Unidentified |
|
|
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 type select flash |
JP3 |
Pins 2 & 3 closed |
|
BIOS type select EPROM |
JP3 |
Pins 1 & 2 closed | |
|
|
On board I/O enabled |
JP6 |
Pins 2 & 3 closed |
|
On board I/O disabled |
JP6 |
Pins 1 & 2 closed | |
|
|
Reset function |
JP15 |
Pins 2 & 3 closed |
|
Suspend mode function |
JP15 |
Pins 1 & 2 closed | |
|
|
Detects hard drive access only |
JP19 |
Open |
|
Detects hard drives & floppy drive accesses |
JP19 |
Closed | |
|
|
Flash BIOS write protect disabled |
JP20 |
Pins 2 & 3 closed |
|
Flash BIOS write protect enabled |
JP20 |
Pins 1 & 2 closed | |
|
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 |
|
SIMM CONFIGURATION (CON'T) | ||
|
Size |
Bank 0 |
Bank 1 |
|
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 | |
|
Size |
Bank 0 |
|
256KB |
(8) 32K x 8 |
|
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 TYPE SELECTION | |
|
Type |
JP12 |
|
AM K5 |
Pins 1 & 2 closed |
|
CX M1 |
Pins 2 & 3 closed |
|
Intel |
Pins 1 & 2 closed |
|
CPU MULTIPLIER SELECTION (CX M1) | ||
|
Multiplier |
JP14 |
JP18 |
|
1.5x, 2x, 3x |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
1x |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
|
1.5x, 2x, 3x |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
1x |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
CPU MULTIPLIER SELECTION (AM K5) | ||
|
Multiplier |
JP14 |
JP18 |
|
1.5x, 2x, 3x |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
1x |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
|
1.5x, 2x, 3x |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
1x |
Pins 2 & 3 closed |
Pins 2 & 3 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 |
|
3x |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
2.5x |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
CPU VOLTAGE SELECTION | ||
|
Voltage |
JP13 | |
|
3.3v |
Pins 1 & 2 closed | |
|
3.5v |
Pins 2 & 3 closed | |
|
CN1 CONNECTOR SELECTION | |||
|
Setting |
JP16 |
JP17 | |
|
Feature connector |
Pins 1 & 2 closed |
Pins 1 & 2 closed | |
|
I2C connector |
Pins 2 & 3 closed |
Pins 2 & 3 closed | |