486VL EISA VESA LOCAL BUS (REV. 1.0) Motherboard Settings and Configuration
TYAN COMPUTER CORPORATION
486VL EISA VESA LOCAL BUS (REV. 1.0)
Processor | 80486SX/80487SX/80486DX/80486DX2 |
Processor Speed | 20/25/33/50 (Internal)/50/66 (Internal)MHz |
Chip Set | SIS |
Max. Onboard DRAM | 256MB |
Cache | 64/128/256/512/1024KB |
BIOS | AMI |
Dimensions | 330mm x 220mm |
I/O Options | 32-bit VESA local bus slots (2) |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Power LED & keylock | JP20 | Turbo switch | JP23 |
Speaker | JP21 | Turbo LED | JP24 |
Reset switch | JP22 | 32-bit VESA Local bus slots | S1 & S2 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper/Switch | Position | |
» | Factory configured - do not alter | JP18 | Open |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
4MB | (4) 1M x 9 | NONE | NONE | NONE |
8MB | (4) 1M x 9 | (4) 1M x 9 | NONE | NONE |
12MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | NONE |
16MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | NONE | NONE | NONE |
20MB | (4) 1M x 9 | (4) 4M x 9 | NONE | NONE |
24MB | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 | NONE |
28MB | (4) 1M x 9 | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 | NONE | NONE |
36MB | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 | NONE |
40MB | (4) 1M x 9 | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 |
48MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | NONE |
52MB | (4) 1M x 9 | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 |
64MB | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 | (4) 4M x 9 |
64MB | (4) 16M x 9 | NONE | NONE | NONE |
128MB | (4) 16M x 9 | (4) 16M x 9 | NONE | NONE |
192MB | (4) 16M x 9 | (4) 16M x 9 | (4) 16M x 9 | NONE |
256MB | (4) 16M x 9 | (4) 16M x 9 | (4) 16M x 9 | (4) 16M x 9 |
CACHE CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | TAG (U15) | TAG (U16) |
64KB | (4) 8K x 8 | (4) 8K x 8 | (1) 8K x 8 | NONE |
128KB | (4) 32K x 8 | Bank 0 | (1) 8K x 8 | NONE |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 8K x 8 | NONE |
512KB | (8) 32K x 8 | (8) 32K x 8 | (1) 32K x 8 | NONE |
1024KB | (8) 128K x 8 | NONE | (1) 32K x 8 | (1) 32K x 8 |
CACHE JUMPER CONFIGURATION | |||||||||
Size | JP5 | JP6 | JP7 | JP8 | JP9 | JP10 | JP12 | JP13 | JP14 |
64KB | Open | Open | Open | 2 & 3 | 1 & 2 | 1 & 2 | Open | 2 & 3 | 1 & 2 |
128KB | Closed | Open | Open | 2 & 3 | 1 & 2 | 1 & 2 | Open | 1 & 2 | 1 & 2 |
256KB | Closed | Closed | Open | 2 & 3 | 2 & 3 | 1 & 2 | Open | 2 & 3 | 2 & 3 |
512KB | Closed | Closed | Closed | 2 & 3 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 | 1 & 2 |
1024KB | Closed | Closed | Closed | 1 & 2 | 1 & 2 | 2 & 3 | 2 & 3 | 2 & 3 | 2 & 3 |
Note:Pins designated should be in the closed position. | |||||||||
CPU TYPE CONFIGURATION | ||
Type | JP1 | JP2 |
80486SX | Pins 1 & 2 closed | pins 2 & 3 closed |
80487SX | Pins 1 & 2 closed | pins 2 & 3 closed |
80486DX | Pins 2 & 3 closed | pins 1 & 2, 3 & 4 closed |
80486DX2 | Pins 2 & 3 closed | pins 1 & 2, 3 & 4 closed |
CPU SPEED CONFIGURATION | |
Speed | JP16 |
£33MHz | pins 2 & 3 closed |
>33MHz | pins 1 & 2 closed |
My Books
