ADVANCED INTEGRATION RESEARCH, INC.
486MI REV. 1.11
|
Processor |
80486SX/80487SX/80486DX/ODP486SX/80486DX2 |
|
Processor Speed |
20/25/33/40/50(internal)/50/66(internal)MHz |
|
Chip Set |
SIS |
|
Max. Onboard DRAM |
64MB |
|
Cache |
64/128/256/512KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit VESA local bus slots (3), floppy drive interface, game port, IDE interface, parallel port, serial ports (2) |
|
NPU Options |
None |
|
CONNECTIONS |
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|
Purpose |
Location |
Purpose |
Location |
|
IDE port |
CN1 |
Green PC LED |
J3 |
|
Floppy port |
CN2 |
Reset switch |
J4 |
|
Parallel port |
CN3 |
Turbo switch |
J5 |
|
Game port |
CN4 |
Turbo LED |
J6 |
|
Serial port 1 |
CN5 |
IDE interface LED |
J7 |
|
Serial port 2 |
CN6 |
32-bit VESA Local bus slots |
S1, S2 & S3 |
|
Speaker |
J1 |
Green PC connector |
W1 |
|
Power LED & keylock |
J2 |
|
|
|
USER CONFIGURABLE SETTINGS |
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|
Function |
Jumper |
Position |
|
|
» |
Factory configured - do not alter |
JP3 |
N/A |
|
» |
Factory configured - do not alter |
JP4 |
N/A |
|
» |
Factory configured - do not alter |
JP9 |
N/A |
|
» |
Monitor type select monochrome, VGA or EGA |
JP16 |
Open |
|
|
Monitor type select CGA |
JP16 |
Closed |
|
» |
Flash BIOS write protect enabled |
JP17 |
pins 1 & 2 closed |
|
|
Flash BIOS write protect disabled |
JP17 |
pins 2 & 3 closed |
|
» |
CMOS memory normal operation |
JP20 |
pins 1 & 2 closed |
|
|
CMOS memory clear |
JP20 |
pins 2 & 3 closed |
|
» |
IDE interface enabled |
JP29 |
pins 1 & 2 closed |
|
|
IDE interface disabled |
JP29 |
pins 2 & 3 closed |
|
» |
Parallel port select interrupt IRQ7 |
JP30 |
pins 1 & 2 closed |
|
|
Parallel port select interrupt IRQ5 |
JP30 |
pins 2 & 3 closed |
|
DRAM CONFIGURATION |
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|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
2MB |
(1) 512K x 36 |
None |
None |
None |
|
4MB |
(1) 512K x 36 |
None |
(1) 512K x 36 |
None |
|
4MB |
(1) 1M x 36 |
None |
None |
None |
|
6MB |
(1) 512K x 36 |
None |
(1) 1M x 36 |
None |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
None |
None |
|
8MB |
(1) 2M x 36 |
None |
None |
None |
|
10MB |
(1) 512K x 36 |
None |
(1) 1M x 36 |
(1) 1M x 36 |
|
10MB |
(1) 512K x 36 |
None |
(1) 2M x 36 |
None |
|
12MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
None |
|
12MB |
(1) 2M x 36 |
None |
(1) 1M x 36 |
None |
|
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB |
(1) 2M x 36 |
None |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB |
(1) 2M x 36 |
None |
(1) 2M x 36 |
None |
|
16MB |
(1) 4M x 36 |
None |
None |
None |
|
20MB |
(1) 1M x 36 |
(1) 4M x 36 |
None |
None |
|
24MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
None |
|
24MB |
(1) 2M x 36 |
None |
(1) 4M x 36 |
None |
|
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
None |
None |
|
32MB |
(1) 8M x 36 |
None |
None |
None |
|
36MB |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
None |
|
40MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
40MB |
(1) 2M x 36 |
None |
(1) 4M x 36 |
(1) 4M x 36 |
|
40MB |
(1) 2M x 36 |
None |
(1) 8M x 36 |
None |
|
48MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
None |
|
48MB |
(1) 8M x 36 |
None |
(1) 4M x 36 |
None |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
64MB |
(1) 8M x 36 |
None |
(1) 4M x 36 |
(1) 4M x 36 |
|
64MB |
(1) 8M x 36 |
None |
(1) 8M x 36 |
None |
|
CACHE JUMPER CONFIGURATION |
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|
Size |
JP10 |
JP11 |
JP12 |
JP13 |
JP14 |
JP15 |
|
64KB |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
pins 2 & 3 |
pins 1 & 2 |
pins 1 & 2 |
|
128KB |
pins 2 & 3 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
pins 1 & 2 |
pins 2 & 3 |
|
256KB |
pins 2 & 3 |
pins 2 & 3 |
pins 1 & 2 |
pins 2 & 3 |
pins 2 & 3 |
pins 2 & 3 |
|
256KB |
pins 2 & 3 |
pins 2 & 3 |
pins 2 & 3 |
pins 1 & 2 |
pins 1 & 2 |
pins 2 & 3 |
|
Note:Pins designated should be in the closed position. |
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|
CACHE SIZE CONFIGURATION |
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|
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) 32K 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 |
|
CPU TYPE CONFIGURATION |
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|
Type |
JP1 |
JP2 |
|
80486SX |
Open |
pins 2 & 3 closed |
|
80486DX |
pins 1 & 2 closed |
pins 1 & 2 and 3 & 4 closed |
|
80487SX |
pins 2 & 3 closed |
pins 1 & 2 and 3 & 4 closed |
|
ODP486SX |
pins 2 & 3 closed |
pins 1 & 2 and 3 & 4 closed |
|
80486DX2 |
pins 1 & 2 closed |
pins 1 & 2 and 3 & 4 closed |
|
CPU SPEED CONFIGURATION |
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|
Speed |
JP5 |
JP6 |
JP7 |
JP26 |
JP27 |
JP28 |
|
20MHz |
Closed |
Open |
Open |
pins 2 & 3 |
pins 2 & 3 |
pins 1 & 2 |
|
25MHz |
Open |
Closed |
Closed |
pins 2 & 3 |
pins 2 & 3 |
pins 1 & 2 |
|
33MHz |
Open |
Closed |
Open |
pins 2 & 3 |
pins 2 & 3 |
pins 1 & 2 |
|
40MHz |
Open |
Open |
Closed |
pins 1 & 2 |
pins 1 & 2 |
pins 2 & 3 |
|
50i MHz |
Open |
Closed |
Closed |
pins 2 & 3 |
pins 2 & 3 |
pins 1 & 2 |
|
50MHz |
Open |
Open |
Open |
pins 1 & 2 |
pins 1 & 2 |
pins 2 & 3 |
|
66i MHz |
Open |
Closed |
Open |
pins 2 & 3 |
pins 2 & 3 |
pins 1 & 2 |
|
Note:Pins designated should be in the closed position. |
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|
IDE RECOVERY TIME |
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|
Speed |
Recovery Time |
JP22 |
JP23 |
JP24 |
|
<33mhz |
9T, low speed |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
<33mhz |
7T, middle speed |
pins 1 & 2 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
<33mhz |
5T, high speed |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
>40mhz |
13T, low speed |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
>40mhz |
11T middle speed |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
>40mhz |
9T high speed |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
VESA WAIT STATE/BUS SPEED (ID2 & ID3) CONFIGURATION |
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|
Speed |
Setting |
ID2 |
ID3 |
|
<=33MHz |
0 wait states |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
>33MHz |
1 wait state |
pins 2 & 3 closed |
pins 2 & 3 closed |