NOVACOR, INC.
OPTIMUM 386SX-16/20/25 REV. B
Processor |
80386SX |
Processor Speed |
16/20/25MHz |
Chip Set |
OPTI |
Max. Onboard DRAM |
16MB |
Cache |
16/32/64KB |
BIOS |
AMI/MR |
Dimensions |
330mm x 218mm |
I/O Options |
None |
NPU Options |
80387SX |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
External battery |
J1 |
Turbo LED |
JP8 |
Speaker |
J21 |
Reset switch |
S1 |
Power LED & keylock |
J22 |
Turbo switch |
S3 |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper |
Position | |
» |
CMOS memory normal operation |
JP1 |
pins 2 & 3 closed |
CMOS memory clear |
JP1 |
pins 1 & 2 closed | |
» |
Monitor type select color (AMI BIOS) |
JP2 |
Closed |
Monitor type select monochrome (AMI BIOS) |
JP2 |
Open | |
» |
Password enabled (MR BIOS) |
JP2 |
Closed |
Password disabled (MR BIOS) |
JP2 |
Open |
DRAM CONFIGURATION | ||||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
1MB |
(2) 256K x 9 |
(2) 256K x 9 |
NONE |
NONE |
2MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 256K x 9 |
2MB |
(2) 1M x 9 |
NONE |
NONE |
NONE |
3MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 1M x 9 |
NONE |
4MB |
(2) 1M x 9 |
(2) 1M x 9 |
NONE |
NONE |
5MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
6MB |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
NONE |
8MB |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 1M x 9 |
9MB |
(2) 256K x 9 |
(2) 256K x 9 |
(2) 4M x 9 |
NONE |
10MB |
(2) 1M x 9 |
(2) 4M x 9 |
NONE |
NONE |
12MB |
(2) 1M x 9 |
(2) 1M x 9 |
(2) 4M x 9 |
NONE |
16MB |
(2) 4M x 9 |
(2) 4M x 9 |
NONE |
NONE |
SRAM CONFIGURATION | |||
Size |
Bank 0 |
Bank 1 |
TAG |
16KB |
(2) 8K x 8 |
NONE |
(2) 4K x 4 |
32KB |
(2) 8K x 8 |
(2) 8K x 8 |
(2) 16K x 4 |
64KB |
(2) 32K x 8 |
NONE |
(2) 16K x 4 |
SRAM JUMPER CONFIGURATION | |||||
Size |
JP3 |
JP4 |
JP5 |
JP6 |
JP7 |
16KB |
1 & 2 |
1 & 2 |
1 & 2 |
Open |
Open |
32KB |
2 & 3 |
1 & 2 |
1 & 2 |
Closed |
Open |
64KB |
2 & 3 |
2 & 3 |
2 & 3 |
Open |
Closed |
Note: Pins designated should be in the closed position. |