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 |
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|
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 |
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|
Function |
Jumper/Switch |
Position |
|
|
|
Factory configured - do not alter |
JP18 |
Open |
|
DRAM CONFIGURATION |
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|
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 |
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|
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. |
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|
CPU TYPE CONFIGURATION |
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|
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 |