ACER, INC.
VI12G
|
Processor |
80486SX/80486DX/80486DX2 |
|
Processor Speed |
25/33/40/50(internal)/50/66(internal)MHz |
|
Chip Set |
Acer |
|
Max. Onboard DRAM |
128MB |
|
Cache |
128/256KB |
|
BIOS |
Award |
|
Dimensions |
254mm x 218mm |
|
I/O Options |
32-bit VESA local bus slots (3), green PC connector |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
JP6 |
Break switch |
JP12 (pins 16-18) |
|
Power LED & keylock |
JP12 (pins 1-5) |
Reset switch |
JP12 (pins 19-20) |
|
Speaker |
JP12 (pins 7-10) |
Chassis fan power |
JP30 |
|
Green PC connector |
JP12 (pins 12-13) |
32-bit VESA local bus slots |
SL1 - SL3 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
CMOS memory normal operation |
JP5 |
Open |
|
CMOS memory clear |
JP5 |
pins 1 & 2 closed | |
|
|
Factory configured - do not alter |
JP8 |
Open |
|
|
Factory configured - do not alter |
JP10 |
Open |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(4) 256K x 9 |
NONE |
|
1MB |
NONE |
(4) 256K x 9 |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
NONE |
|
5MB |
(4) 256K x 9 |
(4) 1M x 9 |
|
5MB |
(4) 1M x 9 |
(4) 256K x 9 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
|
16MB |
NONE |
(4) 4M x 9 |
|
17MB |
(4) 256K x 9 |
(4) 4M x 9 |
|
17MB |
(4) 4M x 9 |
(4) 256K x 9 |
|
20MB |
(4) 1M x 9 |
(4) 4M x 9 |
|
20MB |
(4) 4M x 9 |
(4) 1M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
64MB |
(4) 16M x 9 |
NONE |
|
65MB |
(4) 16M x 9 |
(4) 256K x 9 |
|
68MB |
(4) 16M x 9 |
(4) 1M x 9 |
|
80MB |
(4) 16M x 9 |
(4) 4M x 9 |
|
128MB |
(4) 16M x 9 |
(4) 16M x 9 |
|
CACHE CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
128KB |
(4) 32K x 8 |
NONE |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | |||
|
Size |
JP1 |
JP2 |
JP3 |
|
128KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
256KB |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
CPU SPEED CONFIGURATION | |
|
Speed |
JP11 |
|
25MHz |
pins 1 & 2, 3 & 4, 5 & 6 closed |
|
33MHz |
pins 1 & 2, 3 & 4 closed |
|
40MHz |
pins 1 & 2, 5 & 6 closed |
|
50iMHz |
pins 1 & 2, 3 & 4, 5 & 6 closed |
|
50MHz |
pins 1 & 2 closed |
|
66iMHz |
pins 1 & 2, 3 & 4 closed |
|
BUS SPEED CONFIGURATION | |
|
CPU speed |
JP14 |
|
<=33MHz |
pins 1 & 2 closed |
|
>33MHz |
pins 2 & 3 closed |