UNIDENTIFIED
OPTI-P9
Processor | 80386SX |
Processor Speed | 16/20MHz |
Chip Set | OPTI |
Max. Onboard DRAM | 16MB |
Cache | None |
BIOS | AMI |
Dimensions | 220mm x 220mm |
I/O Options | None |
NPU Options | 80387SX |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Turbo switch | J1 | Speaker | J4 |
Turbo LED | J2 | Power LED & keylock | J5 |
Reset switch | J3 | External battery | JP2 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Turbo mode enabled | J1 | Open |
Normal mode enabled CLK2/6 OR CLK2/4 | J1 | Closed | |
» | Monitor type select monochrome | JP1 | Open |
Monitor type select color | JP1 | Closed | |
» | CMOS memory normal operation | JP2 | pins 2 & 3 closed |
CMOS memory clear | JP2 | pins 3 & 4 closed | |
» | NPU asynchronous with CPU | JP3 | Closed |
NPU synchronous with CPU | JP3 | 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 |
6MB | (2) 1M x 9 | (2) 1M x 9 | (2) 1M x 9 | NONE |
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 |
DRAM CONFIGURATION | ||||||||
Size | Bank 0 | Parity 0 | Bank 1 | Parity 1 | Bank 2 | Parity 2 | Bank 3 | Parity 3 |
256KB | ||||||||
256KB | ||||||||
512KB | ||||||||
512KB | ||||||||
576KB | ||||||||
576KB | ||||||||
640KB | ||||||||
640KB | ||||||||
Note:When using 44256 or 4464 chips, insert the chips into the dual-size sockets. |
CACHE CONFIGURATION | ||||
Size | Max Cachable | Bank 0 | Bank 1 | TAG |
64KB | 8MB | (4) 8K x 8 | (4) 8K x 8 | (2) 16K x 4 |
128KB | 16MB | (4) 32K x 8 | NONE | (2) 16K x 4 |
256KB | 32MB | (4) 32K x 8 | (4) 32K x 8 | (2) 16K x 4 |
CACHE JUMPER CONFIGURATION | ||||
Size | W3 | W4 | W5 | W6 |
64KB | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed | pins 1 & 2 closed |
128KB | pins 2 & 3 closed | pins 2 & 3 closed | pins 1 & 2 closed | pins 1 & 2 closed |
256KB | pins 2 & 3 closed | pins 2 & 3 closed | pins 2 & 3 closed | pins 2 & 3 closed |
VESA CPU TYPE (ID0 & ID1) CONFIGURATION | ||
CPU Type | JP1 (ID0) | JP2 (ID1) |
80386 | pins 2 & 3 closed | pins 1 & 2 closed |
80486 | pins 1 & 2 closed | pins 2 & 3 closed |
VESA WAIT STATE/BUS SPEED (ID2 & ID3) CONFIGURATION | |||
CPU speed | Wait states | JP4 (ID3) | JP5 (ID2) |
< 33MHz | 0 wait states | pins 1 & 2 closed | pins 1 & 2 closed |
> 33MHz | 1 wait state | pins 2 & 3 closed | pins 2 & 3 closed |
VESA ID4 CONFIGURATION | |
Setting | JP6 (ID4) |
Reserved for future use | pins 2 & 3 closed |
MISCELLANEOUS TECHNICAL NOTE |
Note:Pins designated should be in the closed position. |