V12LC-1 Motherboard Settings and Configuration
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 |
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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 |
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