ACER, INC.
V12LC-1
|
Device Type |
Mainboard |
|
Processor |
Pentium |
|
Processor Speed |
75/90/100MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
Cirrus Logic |
|
Maximum Onboard Memory |
128MB |
|
Maximum Video Memory |
2MB |
|
Cache |
256KB |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options (backplane) |
bus mouse port, Ethernet 10BaseT connector, 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 |
|
CONNECTIONS |
|||
|
Purpose |
Location |
Purpose |
Location |
|
RJ-45 ethernet port |
CN1 |
Network/multimedia interface |
CN11 |
|
PS/2 mouse port |
CN3 |
CPU fan connector |
CN12 |
|
Serial port 1 |
CN4 |
Hard disk LED connector |
CN13 |
|
Serial port 2 |
CN5 |
Hard disk LED connector |
CN14 |
|
Parallel port |
CN6 |
LED connector |
CN15 |
|
VGA port |
CN7 |
LED connector |
CN16 |
|
Floppy drive interface |
CN8 |
VGA feature connector |
CN17 |
|
IDE interface 2 |
CN9 |
Riser slot |
SL1 |
|
IDE interface 1 |
CN10 |
|
|
|
USER CONFIGURABLE SETTINGS |
|||
|
Function |
Label |
Position |
|
|
» |
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 ROM |
JP3 |
Pins 1 & 2 closed |
|
|
BIOS ROM type select EPROM |
JP3 |
Pins 2 & 3 closed |
|
» |
Onboard SMC665 enabled |
JP6 |
Pins 2 & 3 closed |
|
|
Onboard SMC665 disabled |
JP6 |
Pins 1 & 2 closed |
|
» |
Onboard GD543x enabled |
JP7 |
Pins 2 & 3 closed |
|
|
Onboard GD543x disabled |
JP7 |
Pins 1 & 2 closed |
|
» |
Enhanced IDE enabled |
JP9 |
Pins 2 & 3 closed |
|
|
Enhanced IDE disabled |
JP9 |
Pins 1 & 2 closed |
|
» |
M1451 delay disabled |
JP11 |
Pins 1 & 2 closed |
|
|
M1451 delay enabled |
JP11 |
Pins 2 & 3 closed |
|
» |
Reset function enabled |
JP15 |
Pins 2 & 3 closed |
|
|
SMM function enabled |
JP15 |
Pins 1 & 2 closed |
|
» |
Factory configured - do not alter |
JP16 |
Reserved |
|
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: The 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 |
|
PARALLEL PORT DMA SELECTION |
||
|
Setting |
JP4 |
JP5 |
|
» DMA1 |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
DMA3 |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
CPU SPEED SELECTION |
|
|
Speed |
JP8 |
|
75MHz |
Pins 1 & 4 closed |
|
90MHz |
Pins 2 & 5 closed |
|
100MHz |
Pins 3 & 6 closed |
|
CPU TYPE SELECTION |
|
|
Type |
JP12 |
|
» Intel |
Pins 1 & 2 closed |
|
Cyrix M1 |
Pins 2 & 3 closed |
|
CPU MULTIPLIER SELECTION |
|
|
Multiplier |
JP14 |
|
» 1.5x |
Pins 1 & 2 closed |
|
2x |
Pins 2 & 3 closed |
|
CPU VOLTAGE SELECTION |
|
|
Voltage |
JP13 |
|
» 3.3825v |
Pins 1 & 2 closed |
|
3.5250v |
Pins 2 & 3 closed |