DIAMOND FLOWER, INC.
486-OCV PLUS
Processor | 80486SX/80486DX/80486DX2/Pentium Overdrive |
Processor Speed | 25/33/40/50(internal)/50/66(internal)/66MHz |
Chip Set | Opti |
Max. Onboard DRAM | 64MB |
Cache | 64/128/256KB |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | 32-bit VESA local bus slots (2) |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Diagnostic LCD port | J1 | Turbo switch | J7 |
Keyboard connector | J2 | Reset switch | J8 |
Speaker | J3 | PS/2 mouse port | J9 |
Power LED & keylock | J4 | External battery | J10 |
Turbo LED | J5 | 32-bit VESA Local bus slots | SL1, SL2 |
Reset switch | J6 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | CMOS memory normal operation (External Battery) | J11 | pins 1,2,3 open |
CMOS memory normal operation (Internal Battery) | J11 | pins 1 & 2 closed | |
CMOS memory clear | J11 | pins 2 & 3 closed | |
» | Factory configured - do not alter | JP13 | Open |
» | Factory configured - do not alter | JP14 | Closed |
» | Factory configured - do not alter | JP26 | pins 1 & 2 closed |
» | Monitor type select color | JP29 | Closed |
Monitor type select monochrome | JP29 | Open | |
» | Factory configured - do not alter | JP31 | pins 1 & 2 closed |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
1MB | (1) 256K x 36 | NONE | NONE | NONE |
2MB | (1) 256K x 36 | (1) 256K x 36 | NONE | NONE |
2MB | (1) 512K x 36 | NONE | NONE | NONE |
4MB | (1) 1M x 36 | NONE | NONE | NONE |
5MB | (1) 256K x 36 | (1) 1M x 36 | NONE | NONE |
6MB | (1) 2M x 36 | (1) 256K x 36 | (1) 1M x 36 | NONE |
6MB | (1) 512K x 36 | NONE | (1) 1M x 36 | NONE |
8MB | (1) 1M x 36 | (1) 1M x 36 | NONE | NONE |
8MB | (4) 2M x 36 | NONE | NONE | NONE |
9MB | (1) 1M x 36 | (1) 1M x 36 | (1) 256K x 36 | NONE |
9MB | (4) 2M x 36 | NONE | (1) 256K x 36 | NONE |
12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | NONE |
12MB | (4) 2M x 36 | NONE | (1) 1M x 36 | NONE |
13MB | (1) 256K x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
13MB | (1) 256K x 36 | (1) 1M x 36 | (1) 2M x 36 | NONE |
16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
16MB | (4) 4M x 36 | NONE | NONE | NONE |
16MB | (4) 2M x 36 | NONE | (1) 2M x 36 | NONE |
18MB | (1) 256K x 36 | (1) 256K x 36 | (1) 4M x 36 | NONE |
18MB | (1) 512K x 36 | NONE | (1) 4M x 36 | NONE |
20MB | (1) 1M x 36 | (1) 4M x 36 | NONE | NONE |
20MB | (1) 4M x 36 | (1) 1M x 36 | NONE | NONE |
24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x 36 | NONE |
24MB | (1) 2M x 36 | NONE | (1) 4M x 36 | NONE |
24MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x 36 | NONE |
24MB | (1) 4M x 36 | (1) 1M x 36 | (1) 4M x 36 | NONE |
28MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x 36 | (1) 1M x 36 |
28MB | (1) 2M x 36 | NONE | (1) 4M x 36 | (1) 1M x 36 |
28MB | (1) 1M x 36 | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x 36 |
28MB | (1) 1M x 36 | (1) 4M x 36 | (1) 2M x 36 | NONE |
28MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
28MB | (1) 4M x 36 | (1) 1M x 36 | (4) 2M x 36 | NONE |
32MB | (1) 4M x 36 | (1) 4M x 36 | NONE | NONE |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
32MB | (1) 8M x 36 | NONE | NONE | NONE |
34MB | (1) 256K x 236 | (1) 256K x 236 | (1) 4M x 36 | (1) 4M x 36 |
34MB | (1) 512K x 36 | NONE | (1) 8M x 36 | NONE |
36MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x 36 | NONE |
36MB | (1) 4M x 36 | (1) 1M x 36 | (1) 4M x 36 | NONE |
36MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x 36 | NONE |
36MB | (1) 8M x 36 | NONE | (1) 1M x 36 | NONE |
40MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x 36 |
40MB | (4) 2M x 36 | NONE | (1) 8M x 36 | NONE |
40MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x 36 |
40MB | (1) 4M x 36 | (1) 1M x 36 | (1) 4M x 36 | (1) 1M x 36 |
40MB | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x 36 |
40MB | (1) 8M x 36 | NONE | (1) 2M x 36 | NONE |
48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | NONE |
48MB | (1) 8M x 36 | NONE | (1) 4M x 36 | NONE |
52MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 |
52MB | (1) 1M x 36 | (1) 4M x 36 | (1) 8M x 36 | NONE |
52MB | (1) 4M x 36 | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x 36 |
52MB | (1) 4M x 36 | (1) 1M x 36 | (1) 8M x 36 | NONE |
52MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | (1) 1M x 36 |
52MB | (4) 8M x 36 | NONE | (1) 4M x 36 | (1) 1M x 36 |
64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 |
64MB | (1) 8M x 36 | NONE | (1) 8M x 36 | NONE |
CPU SPEED SELECTION | ||
Speed | JP12 | JP25 |
25MHz | Open | pins 2 & 3 closed |
33MHz | Closed | pins 2 & 3 closed |
50iMHz | Open | pins 1 & 2 closed |
50MHz | Open | pins 2 & 3 closed |
66iMHz | Closed | pins 2 & 3 closed |
CACHE CONFIGURATION | |||
Size | Bank 0 | Bank 1 | TAG |
64KB | (4) 8K x 8 | (4) 8K x 8 | 8K x 8 |
128KB | (4) 32K x 8 | NONE | 8K x 8 |
256KB | (4) 32K x 8 | (4) 32K x 8 | 16K x 8 or 32K x 8 |
CACHE JUMPER CONFIGURATION | ||||
Size | JP6 | JP7 | JP8 | JP9 |
64KB | Open | Open | pins 2 & 3 closed | pins 2 & 3 closed |
128KB | Closed | Open | pins 1 & 2 closed | pins 1 & 2 closed |
256KB | Closed | Closed | pins 2 & 3 closed | pins 2 & 3 closed |
VESA WAIT STATE/BUS SPEED CONFIGURATION | |||
CPU speed | Wait states | JP23 | JP24 |
< 33MHz | 0 wait states | Open | Open |
> 33MHz | 1 wait state | Closed | Closed |
VESA CONFIGURATION | ||
Function | JP18 | JP34 |
No delay | pins 2 & 3 closed | pins 2 & 3 closed |
Delay 1 PLCK | pins 1 & 2 closed | pins 1 & 2,3 & 4 closed |
Note:If using a 80486DX 50mhz CPU, the recommended setting is for delay 1 PLCK. |