VISIONEX
486 AT MOTHERBOARD MODEL [4GPV5]
Processor | AM486SX/80486SX/CX486DX/AM486DX/80486DX/CX486DX2/ AM486DX2/80486DX2/CX486DX4/AM486DX4/80486DX4 |
Processor Speed | 25/33/40/50(internal)/50/66(internal)/75(internal)/80(internal)/ 100(internal)/120(internal)MHz |
Chip Set | Unidentified |
Video Chip Set | None |
Maximum Onboard Memory | 64MB |
Maximum Video Memory | None |
Cache | 128/256/512/1024KB |
BIOS | AMI/Award/MR |
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 |
Green PC connector | JP3 | Green PC connector | JP20 |
Power LED & keylock | JP16 | Turbo LED | JP21 |
Speaker | JP17 | Reset switch | JP26 |
Green PC LED | JP18 | 32-bit VESA local bus slots | SL1 - SL3 |
Turbo switch | JP19 |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
» | CMOS memory normal operation | JP1 | Pins 1 & 2 closed |
CMOS memory clear | JP1 | Pins 2 & 3 closed | |
Flash BIOS voltage select 12v | JP5 | Pins 2 & 3 closed | |
Flash BIOS voltage select 5v | JP5 | 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) 512K x 36 | None | None | None |
2MB | (1) 256K x 36 | (1) 256K x 36 | None | None |
3MB | (1) 512K x 36 | (1) 256K x 36 | None | None |
3MB | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 | None |
3MB | (1) 256K x 36 | (1) 512K x 36 | None | None |
4MB | (1) 1M x 36 | None | None | None |
4MB | (1) 512K x 36 | (1) 256K x 36 | (1) 256K x 36 | None |
4MB | (1) 512K x 36 | (1) 512K x 36 | None | None |
4MB | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 |
5MB | (1) 1M x 36 | (1) 256K x 36 | None | None |
5MB | (1) 512K x 36 | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 |
5MB | (1) 256K x 36 | (1) 512K x 36 | (1) 512K x 36 | None |
5MB | (1) 256K x 36 | (1) 1M x 36 | None | None |
6MB | (1) 1M x 36 | (1) 256K x 36 | (1) 256K x 36 | None |
6MB | (1) 1M x 36 | (1) 512K x 36 | None | None |
6MB | (1) 512K x 36 | (1) 512K x 36 | (1) 512K x 36 | None |
6MB | (1) 512K x 36 | (1) 1M x 36 | None | None |
7MB | (1) 1M x 36 | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 |
7MB | (1) 256K x 36 | (1) 512K x 36 | (1) 512K x 36 | (1) 512K x 36 |
8MB | (1) 2M x 36 | None | None | None |
8MB | (1) 1M x 36 | (1) 512K x 36 | (1) 512K x 36 | None |
8MB | (1) 1M x 36 | (1) 1M x 36 | None | None |
8MB | (1) 512K x 36 | (1) 512K x 36 | (1) 512K x 36 | (1) 512K x 36 |
9MB | (1) 2M x 36 | (1) 256K x 36 | None | None |
9MB | (1) 256K x 36 | (1) 1M x 36 | (1) 1M x 36 | None |
9MB | (1) 256K x 36 | (1) 2M x 36 | None | None |
10MB | (1) 2M x 36 | (1) 256K x 36 | (1) 256K x 36 | None |
10MB | (1) 2M x 36 | (1) 512K x 36 | None | None |
10MB | (1) 1M x 36 | (1) 512K x 36 | (1) 512K x 36 | (1) 512K x 36 |
10MB | (1) 512K x 36 | (1) 1M x 36 | (1) 1M x 36 | None |
10MB | (1) 512K x 36 | (1) 2M x 36 | None | None |
11MB | (1) 2M x 36 | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 |
12MB | (1) 2M x 36 | (1) 512K x 36 | (1) 512K x 36 | None |
12MB | (1) 2M x 36 | (1) 1M x 36 | None | None |
DRAM CONFIGURATION (CON’T) | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | None |
12MB | (1) 1M x 36 | (1) 2M x 36 | None | None |
13MB | (1) 256K x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
14MB | (1) 2M x 36 | (1) 512K x 36 | (1) 512K x 36 | (1) 512K x 36 |
14MB | (1) 512K x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
16MB | (1) 4M x 36 | None | None | None |
16MB | (1) 2M x 36 | (1) 1M x 36 | (1) 1M x 36 | None |
16MB | (1) 2M x 36 | (1) 2M x 36 | None | None |
16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
17MB | (1) 4M x 36 | (1) 256K x 36 | None | None |
17MB | (1) 256K x 36 | (1) 2M x 36 | (1) 2M x 36 | None |
17MB | (1) 256K x 36 | (1) 4M x 36 | None | None |
18MB | (1) 4M x 36 | (1) 256K x 36 | (1) 256K x 36 | None |
18MB | (1) 4M x 36 | (1) 512K x 36 | None | None |
18MB | (1) 512K x 36 | (1) 2M x 36 | (1) 2M x 36 | None |
18MB | (1) 512K x 36 | (1) 4M x 36 | None | None |
19MB | (1) 4M x 36 | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 |
20MB | (1) 4M x 36 | (1) 512K x 36 | (1) 512K x 36 | None |
20MB | (1) 4M x 36 | (1) 1M x 36 | None | None |
20MB | (1) 2M x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
20MB | (1) 1M x 36 | (1) 2M x 36 | (1) 2M x 36 | None |
20MB | (1) 1M x 36 | (1) 4M x 36 | None | None |
22MB | (1) 4M x 36 | (1) 512K x 36 | (1) 512K x 36 | (1) 512K x 36 |
24MB | (1) 4M x 36 | (1) 2M x 36 | None | None |
24MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 | None |
24MB | (1) 2M x 36 | (1) 4M x 36 | None | None |
25MB | (1) 256K x 36 | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 |
26MB | (1) 512K x 36 | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 |
28MB | (1) 4M x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
28MB | (1) 1M x 36 | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 |
32MB | (1) 4M x 36 | (1) 2M x 36 | (1) 2M x 36 | None |
32MB | (1) 4M x 36 | (1) 4M x 36 | None | None |
32MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 |
33MB | (1) 256K x 36 | (1) 4M x 36 | (1) 4M x 36 | None |
34MB | (1) 512K x 36 | (1) 4M x 36 | (1) 4M x 36 | None |
36MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x 36 | None |
40MB | (1) 4M x 36 | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 |
40MB | (1) 2M x 36 | (1) 4M x 36 | (1) 4M x 36 | None |
48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | None |
49MB | (1) 256K x 36 | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 |
50MB | (1) 512K x 36 | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 |
52MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 |
56MB | (1) 2M x 36 | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 |
64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 |
DRAM JUMPER CONFIGURATION | |
Setting | JP70 |
Banks 0, 1, 2, & 3 are used as single banks | Pins 1 & 2 closed |
Banks 0 & 1 and Banks 2 & 3 used as banks 0 & 1 respectively | Pins 2 & 3 closed |
CACHE CONFIGURATION | |||
Size | Bank 0 | Bank 1 | TAG |
128KB | (4) 32K x 8 | None | (1) 8K x 8 |
256KB (A) | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
256KB (B) | (4) 64K x 8 | None | (1) 32K x 8 |
512KB (A) | (4) 128K x 8 | None | (1) 32K x 8 |
512KB (B) | (4) 64K x 8 | (4) 64K x 8 | (1) 32K x 8 |
1MB | (4) 128K x 8 | (4) 128K x 8 | (1) 128K x 8 |
Note: The location of the TAG is unidentified. |
CACHE JUMPER CONFIGURATION | |||
Size | JP6 | JP11 | JP12 |
128KB | Open | Pins 2 & 3 closed | Pins 1 & 2 closed |
256KB (A) | Open | Pins 1 & 2 closed | Pins 1 & 2 closed |
256KB (B) | Open | Pins 2 & 3 closed | Pins 1 & 2 closed |
512KB (A) | Open | Pins 2 & 3 closed | Pins 2 & 3 closed |
512KB (B) | Pins 1 & 2 closed | Open | Pins 2 & 3 closed |
1MB | Pins 2 & 3 closed | Open | Pins 2 & 3 closed |
CPU SPEED SELECTION | |||||
Speed | JP2A | JP2B | JP2C | JP13 | JP22 |
25MHz | Closed | 1 & 2 | 2 & 3 | Closed | Open |
33MHz | Closed | 2 & 3 | 1 & 2 | Open | Open |
40MHz | Open | 1 & 2 | 2 & 3 | Open | Closed |
50iMHz | Closed | 1 & 2 | 2 & 3 | Closed | Open |
50MHz | Open | 2 & 3 | 1 & 2 | Open | Closed |
66iMHz | Closed | 2 & 3 | 1 & 2 | Open | Open |
75iMHz | Closed | 1 & 2 | 2 & 3 | Closed | Open |
80iMHz | Open | 1 & 2 | 2 & 3 | Open | Closed |
100iMHz | Closed | 2 & 3 | 1 & 2 | Open | Open |
120iMHz | Open | 1 & 2 | 2 & 3 | Open | Closed |
Note: Pins designated should be in the closed position. |
CPU TYPE SELECTION | ||
Type | JP15 | JP80 |
AM486SX | Pins 1 & 2 closed | Pins 1 & 3, 2 & 4 closed |
80486SX | Pins 1 & 2 closed | Pins 1 & 3, 2 & 4 closed |
AM486DX | Pins 1 & 2 closed | Pins 1 & 3, 2 & 4 closed |
CX486DX | Pins 2 & 3 closed | Pins 1 & 3, 2 & 4 closed |
80486DX | Pins 1 & 2 closed | Pins 1 & 3, 2 & 4 closed |
AM486DX2 | Pins 1 & 2 closed | Pins 1 & 3, 2 & 4 closed |
CX486DX2 (3.3v) | Pins 2 & 3 closed | Pins 3 & 5, 4 & 6 closed |
CX486DX2 (5v) | Pins 2 & 3 closed | Pins 1 & 3, 2 & 4 closed |
80486DX2 | Pins 1 & 2 closed | Pins 1 & 3, 2 & 4 closed |
CX486DX4 | Pins 2 & 3 closed | Pins 3 & 5, 4 & 6 closed |
AM486DX4 (3.3v) | Pins 1 & 2 closed | Pins 3 & 5, 4 & 6 closed |
80486DX4 (3.3v) | Pins 1 & 2 closed | Pins 3 & 5, 4 & 6 closed |