UNIDENTIFIED
486L
|
Processor |
80486SX/80487SX/80486DX |
|
Processor Speed |
20/25/33/50MHz |
|
Chip Set |
OPTI |
|
Max. Onboard DRAM |
32MB |
|
Cache |
64/128/256KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 220mm |
|
I/O Options |
Local bus slot |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J1 |
Reset switch |
J16 |
|
Power LED & keylock |
J13 |
Turbo LED |
J17 |
|
Speaker |
J14 |
Local bus slot |
SL1 |
|
Turbo switch |
J15 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
Battery type select internal |
J1 |
pins 1 & 2 closed |
|
Battery type select external |
J1 |
Closed | |
|
|
Monitor type select color |
J2 |
Closed |
|
Monitor type select monochrome |
J2 |
Open | |
|
|
ATCLK select CLKI/6 |
J3 |
Closed |
|
ATCLK select CLKI/4 |
J3 |
Open | |
|
Phase frequency select single phase |
J6 |
pins 1 & 2 closed | |
|
Phase frequency select double phase |
J6 |
pins 2 & 3 closed | |
|
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 |
|
5MB |
(4) 256K x 9 |
(4) 1M x 9 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
|
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 |
|
CACHE CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
TAG 0 |
TAG 1 |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(1) 8K x 8 |
(1) 16K x 4 |
|
128KB |
(4) 32K x 8 |
NONE |
(1) 8K x 8 |
(1) 16K x 4 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
(1) 16K x 4 |
|
CACHE JUMPER CONFIGURATION | ||||
|
Size |
J4 |
J5 |
J10 |
J12 |
|
64KB |
Open |
Open |
pins 2 & 3 closed |
Open |
|
128KB |
Open |
Closed |
pins 1 & 2 closed |
Closed |
|
256KB |
Closed |
Closed |
pins 2 & 3 closed |
Closed |
|
CPU TYPE CONFIGURATION | |||
|
Type |
J7 |
J8 |
JP10 |
|
80486SX |
pins 2 & 3 closed |
Open |
Open |
|
80487SX |
pins 1 & 2 closed |
Closed |
Open |
|
80486DX |
pins 1 & 2 closed |
Closed |
pins 2 & 3 closed |
|
CHIPSET CONFIGURATION | |||
|
Type |
J9 |
J11 | |
|
82C495 |
pins 1 & 2 closed |
pins 1 & 2 closed | |
|
82C493 |
pins 2 & 3 closed |
pins 2 & 3 closed | |