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CLT486VL2 486AT MOTHERBOARD Motherboard Settings and Configuration
VISIONEX
CLT486VL2 486AT MOTHERBOARD
MSI 486VL2 486 VESA L.B. / ISA
Processor | 80486SX/80487SX/ODP486/80486DX/80486DX2 |
Processor Speed | 20/25/33/50(internal)/50/66(internal)MHz |
Chip Set | Unidentified |
Video Chip Set | None |
Maximum Onboard Memory | 32MB |
Maximum Video Memory | None |
Cache | 64/128/256KB |
BIOS | AMI |
Dimensions | 254mm x 218mm |
I/O Options | 32-bit VESA local bus slots (2) |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Turbo LED | JP10 | External battery | JP17 |
Speaker | JP11 | Turbo switch | JP95 |
Power LED & keylock | JP13 | 32-bit VESA local bus slots | SL1 & SL2 |
Reset switch | JP15 | ||
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
PQFP CPU disabled | JP1 | Closed | |
PQFP CPU enabled | JP1 | Open | |
Monitor type select CGA/EGA/PGA/VGA | JP12 | Closed | |
Monitor type select monochrome | JP12 | Open | |
» | CMOS memory normal operation | JP16 | Pins 1 & 2 closed |
CMOS memory clear | JP16 | Pins 2 & 3 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) 256K x 9 | (4) 1M x 9 |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | None |
17MB | (4) 256K x 9 | (4) 4M x 9 |
20MB | (4) 1M x 9 | (4) 4M 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/32K 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 SPEED SELECTION | |||
Speed | ID3 | JP33 | JP72 |
20MHz | Open | Pins 2 & 4 closed | Closed |
25MHz | Open | Pins 2 & 4 closed | Closed |
33MHz | Open | Pins 2 & 4 closed | Open |
50iMHz | Open | Pins 2 & 4 closed | Closed |
50MHz | Closed | Pins 1 & 2 closed | Open |
66iMHz | Open | Pins 2 & 4 closed | Open |
Note: Pins designated should be in the closed position. | |||
CPU TYPE SELECTION | |||
Type | JP2 | JP3 | JP4 |
80486SX (PQFP) | Open | Open | Open |
80486SX (PGA) | Pins 2 & 3 closed | Open | Open |
80487SX | Pins 1 & 2, 3 & 4 closed | Pins 1 & 2 closed | Closed |
ODP486 | Pins 1 & 2, 3 & 4 closed | Pins 1 & 2 closed | Open |
80486DX | Pins 1 & 2, 3 & 4 closed | Pins 2 & 3 closed | Open |
80486DX2 | Pins 1 & 2, 3 & 4 closed | Pins 2 & 3 closed | Open |
Note: The location of the PQFP is unidentified. | |||
VL BUS WAIT STATE SELECTION | |
Setting | ID2 |
0 | Open |
1 | Closed |
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