QDI COMPUTER, INC.
VL/ISA-PB486P3
Processor | 80486SX/CX486DX/80486DX/SL80486DX/80486DX2/(SL)80486DX2/ AM486/80486DX4 |
Processor Speed | 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)MHz |
Chip Set | OPTI |
Video Chip Set | None |
Maximum Onboard Memory | 64MB |
Maximum Video Memory | None |
Cache | 128/256/512KB |
BIOS | AMI |
Dimensions | 254mm x 218mm |
I/O Options | 32-bit VESA local bus slots (3), green PC connector |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Power LED & keylock | J2 | Reset switch | S1 |
Speaker | JP18 | 32-bit VESA local bus slots | SL1 - SL3 |
Green PC connector | JP21 | Turbo LED | TBLED |
Green PC connector | JP32 | Turbo switch | TBSW |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
» | Factory configured - do not alter | JP12 | Open |
» | Factory configured - do not alter | JP14 | Pins 1 & 2 closed |
» | Factory configured - do not alter | JP23 | Open |
» | CMOS memory normal operation | JP26 | Pins 2 & 3 closed |
CMOS memory clear | JP26 | Pins 1 & 2 closed | |
» | Monitor type select color | JP30 | Closed |
Monitor type select monochrome | JP30 | Open | |
» | Factory configured - do not alter | JP37 | Pins 1 & 2 closed |
» | Factory configured - do not alter | JP44 | Pins 2 & 3 closed |
» | Factory configured - do not alter | JP45 | Pins 2 & 3 closed |
» | Factory configured - do not alter | JP46 | Pins 2 & 3 closed |
DRAM CONFIGURATION | |||
Size | Bank 0 | Bank 1 | Bank 2 |
1MB | (4) 256K x 9 | None | None |
2MB | None | (1) 512K x 36 | None |
4MB (A) | (4) 1M x 9 | None | None |
4MB (B) | None | (1) 1M x 36 | None |
4MB (C) | None | (1) 512K x 36 | (1) 512K x 36 |
6MB | None | (1) 512K x 36 | (1) 1M x 36 |
8MB (A) | (4) 1M x 9 | None | (1) 1M x 36 |
8MB (B) | None | (1) 2M x 36 | None |
8MB (C) | None | (1) 1M x 36 | (1) 1M x 36 |
10MB | None | (1) 512K x 36 | (1) 2M x 36 |
12MB (A) | (4) 1M x 9 | None | (1) 2M x 36 |
12MB (B) | None | (1) 1M x 36 | (1) 2M x 36 |
16MB (A) | (4) 4M x 9 | None | None |
16MB (B) | None | (1) 4M x 36 | None |
16MB (C) | None | (1) 2M x 36 | (1) 2M x 36 |
16MB (D) | (4) 4M x 9 | (1) 2M x 36 | (1) 1M x 36 |
20MB (A) | (4) 1M x 9 | None | (1) 4M x 36 |
20MB (A) | None | (1) 1M x 36 | (1) 4M x 36 |
32MB (A) | (4) 4M x 9 | None | (1) 4M x 36 |
32MB (B) | None | (1) 4M x 36 | (1) 4M x 36 |
32MB (C) | None | (1) 8M x 36 | None |
64MB (A) | None | (1) 8M x 36 | (1) 8M x 36 |
64MB (B) | (4) 4M x 9 | (1) 8M x 36 | (1) 4M x 36 |
Note: The location of banks 1 & 2 are unidentified. |
DRAM JUMPER CONFIGURATION | |
Size | JP42 |
1MB | Pins 1 & 2 closed |
2MB | Pins 1 & 2 closed |
4MB (A) | Pins 1 & 2 closed |
4MB (B) | Pins 1 & 2 closed |
4MB (C) | Pins 1 & 2 closed |
6MB | Pins 1 & 2 closed |
8MB (A) | Pins 1 & 2 closed |
8MB (B) | Pins 1 & 2 closed |
8MB (C) | Pins 1 & 2 closed |
10MB | Pins 1 & 2 closed |
12MB (A) | Pins 1 & 2 closed |
12MB (B) | Pins 1 & 2 closed |
16MB (A) | Pins 1 & 2 closed |
16MB (B) | Pins 1 & 2 closed |
16MB (C) | Pins 1 & 2 closed |
16MB (D) | Pins 2 & 3 closed |
20MB (A) | Pins 1 & 2 closed |
20MB (A) | Pins 1 & 2 closed |
32MB (A) | Pins 1 & 2 closed |
32MB (B) | Pins 1 & 2 closed |
32MB (C) | Pins 1 & 2 closed |
64MB (A) | Pins 1 & 2 closed |
64MB (B) | Pins 2 & 3 closed |
CACHE CONFIGURATION | |||
Size | Bank 0 | Bank 1 | TAG |
128KB | (4) 32K x 8 | None | (1) 8K x 8 |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
512KB | (4) 128K x 8 | None | (1) 32K x 8 |
Note: The location of banks 0 & 1 and the TAG are unidentified. |
CACHE JUMPER CONFIGURATION | ||||
Size | JP10 | JP11 | JP13 | JP35 |
128KB | Open | Closed | Pins 1 & 2 closed | Pins 1 & 2 closed |
256KB | Closed | Closed | Pins 2 & 3 closed | Pins 1 & 2 closed |
512KB | Closed | Closed | Pins 1 & 2 closed | Pins 2 & 3 closed |
CPU SPEED SELECTION | ||
Speed | JP38 | JP39 |
25MHz | Open | Closed |
33MHz | Closed | Open |
40MHz | Open | Open |
50iMHz | Open | Closed |
50MHz | Closed | Closed |
66iMHz | Closed | Open |
75iMHz | Open | Closed |
80iMHz | Open | Open |
100iMHz | Closed | Open |
CPU TYPE SELECTION | |||||
Type | JP3 | JP4 | JP5 | JP6 | JP7 |
80486SX | Open | Open | Open | 1 & 2 | Open |
SL80486SX | Open | Open | Open | 1 & 2 | Open |
CX486DX (1x) | 1 & 2 | Open | 2 & 3 | 2 & 3 | Open |
CX486DX (2x) | 1 & 2 | Open | 2 & 3 | 2 & 3 | Open |
80486DX | 1 & 2 | Open | 2 & 3 | 1 & 2 | Open |
SL80486DX | 1 & 2 | Open | 2 & 3 | 1 & 2 | Open |
80486DX2 | 1 & 2 | Open | 2 & 3 | 1 & 2 | Open |
AM486 3.3v (2x) | 1 & 2 | Open | 2 & 3 | 1 & 2 | 2 & 3 |
AM486 3.3v (3x) | 1 & 2 | Open | 2 & 3 | 1 & 2 | 1 & 2 |
80486DX4 | 1 & 2 | Open | 2 & 3 | 1 & 2 | Open |
Note: Pins designated should be in the closed position. |
CPU TYPE SELECTION (CON’T) | |||||
Type | JP8 | JP9 | JP22 | JP24 | JP25 |
80486SX | 2 & 3 | Open | 1 & 2 | Open | Open |
SL80486SX | 2 & 3 | Open | 1 & 2 | Closed | Closed |
CX486DX (1x) | 1 & 2 | 1 & 2 | 1 & 2 | Open | Open |
CX486DX (2x) | 1 & 2 | 1 & 2 | 1 & 2 | Open | Open |
80486DX | 1 & 2 | Open | 1 & 2 | Open | Open |
SL80486DX | 1 & 2 | Open | 1 & 2 | Closed | Closed |
80486DX2 | 1 & 2 | Open | 1 & 2 | Open | Open |
AM486 3.3v (2x) | 1 & 2 | Open | 1 & 2 | Open | Open |
AM486 3.3v (3x) | 1 & 2 | Open | 1 & 2 | Open | Open |
80486DX4 | 1 & 2 | Open | 1 & 2 | Closed | Closed |
Note: Pins designated should be in the closed position. |
CPU TYPE SELECTION (CON’T) | ||||
Type | JP27 | JP36 | JP40 | JP43 |
80486SX | Open | Pins 1 & 2 closed | Open | Open |
SL80486SX | Open | Pins 2 & 3 closed | Open | Open |
CX486DX (1x) | Pins 1 & 2 closed | Pins 1 & 2 closed | Open | Open |
CX486DX (2x) | Pins 2 & 3 closed | Pins 1 & 2 closed | Open | Open |
80486DX | Open | Pins 1 & 2 closed | Open | Open |
SL80486DX | Open | Pins 2 & 3 closed | Open | Open |
80486DX2 | Open | Pins 1 & 2 closed | Open | Open |
AM486 3.3v (2x) | Open | Pins 1 & 2 closed | Open | Open |
AM486 3.3v (3x) | Open | Pins 1 & 2 closed | Open | Open |
80486DX4 | Open | Pins 2 & 3 closed | Closed | Open |
CPU VOLTAGE SELECTION | |
Voltage | JP1 |
3.3v | Open |
5v | Closed |
VL BUS WAIT STATE SELECTION | ||
Setting | JP33 | |
» | 0 | Open |
1 | Closed |
VL BUS SPEED SELECTION | ||
Speed | JP34 | |
» | <= 33MHz | Open |
>33 MHz | Closed |