486VLP Motherboard Settings and Configuration
SEANIX TECHNOLOGY, INC.
486VLP
Processor | 80486SX/80487SX/80486DX/80486DX2/Pentium Overdrive |
Processor Speed | 25/33/50(internal)/50/66(internal)MHz |
Chip Set | Unidentified |
Max. Onboard DRAM | 32MB |
Cache | 64/128/256KB |
BIOS | AMI |
Dimensions | 330mm x 218mm |
I/O Options | 32-bit VESA local bus slots (2) |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Speaker | JP11 | Turbo switch | JP95 |
Power LED & keylock | JP13 | Turbo LED | JP96 |
Reset switch | JP15 | 32-bit VESA local bus slots | SL1 & SL2 |
External battery | JP17 | ||
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
» | Password disabled | JP12 | Open |
Password enabled | JP12 | Closed | |
» | CMOS memory normal operation | JP16 | pins 1 & 2 closed |
CMOS memory clear | JP16 | pins 2 & 3 closed | |
» | Factory configured - do not alter | JP33 | pins 1 & 2 closed |
» | VESA card select normal VESA card | JP89 | Closed |
VESA card select Weitek P9000 (pins 2 & 3 closed on JP33) | JP89 | Open | |
» | Factory configured - do not alter | JP94 | pins 1 & 2 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) 1M x 9 | (4) 256K x 9 |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE |
17MB | (4) 4M x 9 | (4) 256K 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 |
64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 |
128KB | (4) 32K x 8 | NONE | (1) 8K x 8 |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
CACHE JUMPER CONFIGURATION | ||
Size | JP7 | JP8 |
64KB | pins 2 & 3 closed | pins 2 & 4 closed |
128KB | pins 1 & 2 closed | pins 2 & 3 closed |
256KB | pins 1 & 2 closed | pins 1 & 2 closed |
CPU TYPE CONFIGURATION | |||
Type | JP2 | JP3 | JP4 |
80486SX | pins 2 & 3 closed | Open | Open |
80487SX | pins 1 & 2, 3 & 4 closed | pins 1 & 2 closed | Closed |
80486DX | pins 1 & 2, 3 & 4 closed | pins 2 & 3 closed | Open |
80486DX2 | pins 1 & 2, 3 & 4 closed | pins 2 & 3 closed | Open |
Pentium Overdrive | pins 1 & 2, 3 & 4 closed | pins 1 & 2 closed | Closed |
CPU SPEED CONFIGURATION | |
Speed | JP72 |
25MHz | Closed |
33MHz | Open |
50iMHz | Closed |
50MHz | Open |
66iMHz | Open |
BUS SPEED CONFIGURATION | ||
CPU speed | ID2 | ID3 |
<= 33MHz | Closed | Open |
> 33MHz | Closed | Closed |
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