ELISA TECHNOLOGY, INC.
LM-486EISA (BASEBOARD)
|
Processor |
80486SX/80487SX/80486DX/80486DX2 |
|
Processor Speed |
16/20/25/33/50(internal)/66(internal)MHz |
|
Chip Set |
OPTI |
|
Max. Onboard DRAM |
128MB |
|
Cache |
256KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 225mm |
|
I/O Options |
CPU expansion card slot, 32-bit VESA local bus slots (2) |
|
NPU Options |
4167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Speaker |
J1 |
Reset switch |
S1 |
|
Power LED & keylock |
J2 |
CPU expansion card |
S2 |
|
Turbo switch |
JP14 |
32-bit VESA local bus slots |
S3 & S4 |
|
Turbo LED |
JP15 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Factory configured - do not alter |
BM1 |
N/A | |
|
Factory configured - do not alter |
BM2 |
N/A | |
|
Factory configured - do not alter |
JP1 - JP6 |
Open | |
|
Factory configured - do not alter |
JP2 |
Open | |
|
Factory configured - do not alter |
JP3 |
Open | |
|
Factory configured - do not alter |
JP4 |
Open | |
|
Factory configured - do not alter |
JP5 |
Open | |
|
Factory configured - do not alter |
JP6 |
Open | |
|
Bus master on baseboard (U26) enabled |
JP7 |
pins 1 & 2 closed | |
|
Bus master on baseboard (U26) disabled |
JP7 |
pins 2 & 3 closed | |
|
Monitor type select monochrome |
JP8 |
Open | |
|
Monitor type select color |
JP8 |
Closed | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
4MB |
(4) 1M x 9 |
NONE |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
|
20MB |
(4) 1M x 9 |
(4) 4M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
68MB |
(4) 1M x 9 |
(4) 16M x 9 |
|
80MB |
(4) 4M x 9 |
(4) 16M x 9 |
|
128MB |
(4) 16M x 9 |
(4) 16M x 9 |
|
CPU TYPE CONFIGURATION | |||
|
Type |
JP9 |
JP10 |
JP11 |
|
80487SX-16 |
Closed |
Closed |
pins 2 & 3 closed |
|
80487SX-20 |
Closed |
Closed |
pins 2 & 3 closed |
|
80486SX-16 |
Closed |
Closed |
pins 2 & 3 closed |
|
80486SX-20 |
Closed |
Closed |
pins 2 & 3 closed |
|
80486SX-25 |
Closed |
Open |
pins 1 & 2 closed |
|
80486DX-25 |
Closed |
Open |
pins 1 & 2 closed |
|
80486DX-33 |
Open |
Open |
pins 1 & 2 closed |
|
80486DX2-50 |
Closed |
Open |
pins 1 & 2 closed |
|
80486DX2-66 |
Open |
Open |
pins 1 & 2 closed |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Factory configured - do not alter |
JP2 |
pins 2 & 3 closed | |
|
Factory configured - do not alter |
JP4 |
Open | |
|
Bus master on CPU card enabled |
JP5 |
Open | |
|
Bus master on CPU card disabled |
JP5 |
Closed | |
|
CACHE CONFIGURATION | ||||||
|
Size |
Bank 0 |
Bank 1 |
TAG (U16) |
Dirty bit (U25) |
TAG (U26) |
TAG (U27) |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(1) 16K x 1 |
(1) 8K x 8 |
NONE |
(1) 8K x 8 |
|
128KB |
(4) 32K x 8 |
NONE |
(1) 16K x 1 |
(1) 8K x 8 |
NONE |
(1) 8K x 8 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 16K x 1 |
(1) 8K x 8 |
(1) 8K x 8 |
(1) 8K x 8 |
|
512KB |
(4) 128K x 8 |
NONE |
(1) 64K x 1 |
(1) 8K x 8 |
NONE |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | |||||||
|
Size |
JP6 |
JP8 |
JP9 |
JP10 |
JP11 |
JP12 |
JP13 |
|
64KB |
2 & 3 |
Open |
Open |
Open |
Open |
Open |
Open |
|
128KB |
1 & 2 |
Closed |
Open |
Open |
Closed |
Open |
Open |
|
256KB |
2 & 3 |
Closed |
Closed |
Open |
Closed |
Closed |
Open |
|
512KB |
1 & 2 |
Closed |
Closed |
Closed |
Closed |
Closed |
Closed |
|
Note: Pins designated should be in the closed position. | |||||||
|
CPU TYPE CONFIGURATION | |||
|
Type |
JP1 |
JP3 |
JP7 |
|
80487SX-16 |
pins 1 & 2, 3 & 4 closed |
pins 1 & 2 closed |
Closed |
|
80487SX-20 |
pins 1 & 2, 3 & 4 closed |
pins 1 & 2 closed |
Closed |
|
80486SX-16 |
pins 2 & 3 closed |
Open |
Closed |
|
80486SX-20 |
pins 2 & 3 closed |
Open |
Closed |
|
80486SX-25 |
pins 2 & 3 closed |
Open |
Open |
|
80486DX-25 |
pins 1 & 2, 3 & 4 closed |
pins 2 & 3 closed |
Open |
|
80486DX-33 |
pins 1 & 2, 3 & 4 closed |
pins 2 & 3 closed |
Open |
|
80486DX2-50 |
pins 1 & 2, 3 & 4 closed |
pins 2 & 3 closed |
Open |
|
80486DX2-66 |
pins 1 & 2, 3 & 4 closed |
pins 2 & 3 closed |
Open |