GIGA-BYTE TECHNOLOGY CO., LTD.
GA-486SA
Processor |
80486SX/80487SX/80486DX/ODP486SX/80486DX2 |
Processor Speed |
16/20/25/33/50(internal)/50/66(internal)MHz |
Chip Set |
OPTI |
Max. Onboard DRAM |
128MB |
Cache |
64/128/256/512KB |
BIOS |
AMI |
Dimensions |
330mm x 218mm |
I/O Options |
32-bit local bus card slots (2) |
NPU Options |
4167 |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Power LED & keylock |
J1 |
Turbo switch |
J4 |
Reset |
J2 |
Turbo LED |
J5 |
Speaker |
J3 |
32-bit local bus cards (2) |
S1 & S2 |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper |
Position | |
» |
CPU type select 80486DX |
J6 |
pins 1 & 2 closed |
CPU type select 80486SX |
J6 |
pins 2 & 3 closed | |
» |
Monitor type select color |
J14 |
Closed |
Monitor type select monochrome |
J14 |
Open |
DRAM CONFIGURATION | ||
Size |
Bank 0 |
Bank 1 |
1MB |
(4) 256K x 9 |
NONE |
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
4MB |
(4) 1M x 9 |
NONE |
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
16MB |
(4) 4M x 9 |
NONE |
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
64MB |
(4) 16M x 9 |
NONE |
128MB |
(4) 16M x 9 |
(4) 16M x 9 |
CACHE CONFIGURATION | |||
Size |
Bank 0 |
Bank 1 |
TAG |
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(1) 8K x 8 |
128KB |
(4) 32K x 8 |
NONE |
(1) 8K x 8 |
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
512KB |
(4) 128K x 8 |
NONE |
(1) 32K x 8 |
CACHE JUMPER CONFIGURATION | ||||
Size |
J8 |
J9 |
J10 |
J11 |
64KB |
Open |
Open |
Open |
Open |
128KB |
Open |
Closed |
Open |
pins 1 & 2 closed |
256KB |
Open |
Closed |
Closed |
pins 2 & 3 closed |
512KB |
Closed |
Closed |
Closed |
pins 1 & 2 closed |