ZIDA TECHNOLOGIES, LTD.
OPTI 3486
|
Processor |
80386DX/80486SX/80487SX/80486DX/80486DX2 |
|
Processor Speed |
20/25/33/40/50(internal)/50/66(internal)MHz |
|
Chip Set |
OPTI |
|
Max. Onboard DRAM |
32MB |
|
SRAM Cache |
64/128/256KB |
|
BIOS |
AMI |
|
Dimensions |
220mm x 220mm |
|
I/O Options |
None |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Reset switch |
J1 |
Speaker |
J4 |
|
Turbo LED |
J3 |
Power LED & keylock |
J5 |
|
Note:The Locations of connectors J1, J3, J4, and J5 are unknown. | |||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
| » |
Factory configured - do not alter |
P2 |
Unknown |
|
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 |
|
20MB |
(4) 4M x 9 |
(4) 1M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
SRAM CONFIGURATION | |||
|
Size |
Cache |
Location |
TAG |
|
64KB |
(8) 8K x 8 |
Banks 0 & 1 |
(1) 8K x 8 |
|
128KB |
(4) 32K x 8 |
Bank 0 |
(1) 8K x 8 |
|
256KB |
(8) 32K x 8 |
Banks 0 & 1 |
(1) 32K x 8 |
|
SRAM JUMPER CONFIGURATION | ||||||
|
Size |
P3 |
P5 |
P6 |
P7 |
P8 |
P9 |
|
64KB |
pins 2 & 3 closed |
Open |
Open |
Open |
Open |
Open |
|
128KB |
pins 1 & 2 closed |
Open |
Open |
Closed |
Closed |
Closed |
|
256KB |
pins 2 & 3 closed |
Closed |
Closed |
Closed |
Closed |
Closed |
|
CONFIGURATION FOR 80386DX CPU | ||
|
Jumper |
33MHz |
40MHz |
|
P4 |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
P12 |
N/A |
N/A |
|
P13 |
N/A |
N/A |
|
P14 |
N/A |
N/A |
|
P25 |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
P28 |
Open |
Open |
|
P30 |
Closed |
Open |
|
P31 |
Closed |
Open |
|
P32 |
Open |
Closed |
|
P33 |
Open |
Open |
|
P39 |
Closed |
Open |
|
P97 |
Closed |
Closed |
|
P100 |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
CONFIGURATION FOR 80486SX, 80486DX & 80486DX2 CPU | ||||||
|
Jumper |
20MHz |
25MHz |
33MHz |
50iMHz |
50MHz |
66iMHz |
|
P4 |
pins 2 & 3 |
pins 2 & 3 |
pins 2 & 3 |
pins 2 & 3 |
pins 2 & 3 |
pins 2 & 3 |
|
P12 |
pins 2 & 3 |
pins 2 & 3 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
|
P13 |
Open |
Open |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
|
P14 |
Open |
Open |
Closed |
Closed |
Closed |
Closed |
|
P25 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
|
P28 |
Closed |
Closed |
Closed |
Closed |
Closed |
CLosed |
|
P30 |
Open |
Closed |
Closed |
Closed |
Closed |
Closed |
|
P31 |
Closed |
Open |
Closed |
Open |
Open |
Closed |
|
P32 |
Closed |
Closed |
Open |
Closed |
Closed |
Open |
|
P33 |
Closed |
Closed |
Closed |
Closed |
Closed |
Closed |
|
P39 |
N/A |
N/A |
N/A |
N/A |
N/A |
N/A |
|
P97 |
Open |
Open |
Open |
Open |
Closed |
Open |
|
P100 |
pins 2 & 3 |
pins 2 & 3 |
pins 2 & 3 |
pina 2 & 3 |
pins 2 & 3 |
pins 2 & 3 |
|
Note:Pins designated should be in the closed position. Location of jumpers P30, P31, P32 and P97 are unknown. | ||||||