ASUS COMPUTER INTERNATIONAL
VL/I-486SV2G (REV. 1.0)
VL/I-486SV2GX4 (REV. 1.0)
|
Processor |
CX486S/80486SX/SL80486SX/486 Overdrive/SL486 Overdrive/ 80487SX/CX486DX/80486DX/SL80486DX/80486DX2/SL80486DX2/CX486DX2/80486DX4/P24T |
|
Processor Speed |
20/25/33/40/50(internal)/50/66(internal)/75(internal)/ 100(internal)MHz |
|
Chip Set |
SIS |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
64MB |
|
Maximum Video Memory |
None |
|
Cache |
128/256/512/1024KB |
|
BIOS |
Award |
|
Dimensions |
254mm x 218mm |
|
I/O Options |
32-bit VESA local bus slots (2), green PC connector |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Power LED & keylock |
J1 |
Green PC connector |
JP2 |
|
Speaker |
J2 |
Green PC connector |
JP3 |
|
Reset switch |
J3 |
Green PC connector |
JP4 |
|
Turbo LED |
J4 |
Green PC connector |
JP28 |
|
Turbo switch |
J5 |
32-bit VESA local bus slots |
SL1 & SL2 |
|
External battery |
J6 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
Battery type select internal |
JP1 |
Pins 1 & 2 closed | |
|
Battery type select external |
JP1 |
Pins 2 & 3 closed | |
|
» |
IRQ12 enabled |
JP7 |
Pins 1 & 2 closed |
|
IRQ12 disabled |
JP7 |
Pins 2 & 3 closed | |
|
» |
Factory configured - do not alter |
JP8 |
Unidentified |
|
Monitor type select monochrome/VGA |
JP9 |
Pins 1 & 2 closed | |
|
Monitor type select CGA |
JP9 |
Pins 2 & 3 closed | |
|
Green PC enabled (JP28) |
JP10 |
Pins 2 & 3 closed | |
|
Green PC disabled (RC control) |
JP10 |
Pins 1 & 2 closed | |
|
» |
VESA clock delay enabled |
JP24 |
Pins 1 & 2 closed |
|
VESA clock delay disabled |
JP24 |
Pins 2 & 3 closed | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
(1) 256K x 36 |
None |
None |
None |
|
2MB |
(1) 256K x 36 |
(1) 256K x 36 |
None |
None |
|
2MB |
(1) 512K x 36 |
None |
None |
None |
|
4MB |
(1) 1M x 36 |
None |
None |
None |
|
5MB |
(1) 256K x 36 |
(1) 1M x 36 |
None |
None |
|
6MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 1M x 36 |
None |
|
6MB |
(1) 512K x 36 |
None |
(1) 1M x 36 |
None |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
None |
None |
|
10MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
10MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 2M x 36 |
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) 1M x 36 |
(1) 1M x 36 |
(1) 2M x 36 |
None |
|
16MB |
(1) 2M x 36 |
None |
(1) 2M x 36 |
None |
|
DRAM CONFIGURATION (CON’T) | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
16MB |
(1) 2M x 36 |
None |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB |
(1) 4M x 36 |
None |
None |
None |
|
17MB |
(1) 256K x 36 |
(1) 4M x 36 |
None |
None |
|
18MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 4M x 36 |
None |
|
18MB |
(1) 512K x 36 |
None |
(1) 4M x 36 |
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) 1M x 36 |
(1) 1M x 36 |
(1) 8M x 36 |
None |
|
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 |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 8M x 36 |
None |
|
64MB |
(1) 8M x 36 |
None |
(1) 8M x 36 |
None |
|
Note: The location of banks 0, 1, 2, & 3 are unidentified. | ||||
|
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) 64K x 8 |
(4) 64K x 8 |
(1) 32K x 8 |
|
512KB (B) |
(4) 128K x 8 |
None |
(1) 32K x 8 |
|
1MB |
(4) 128K x 8 |
(4) 128K x 8 |
(1) 128K x 8 |
|
CACHE JUMPER CONFIGURATION | |||
|
Size |
JP13 |
JP14 |
JP25 |
|
128KB |
Open |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
|
256KB (A) |
Open |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
256KB (B) |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
|
512KB (A) |
Pins 4 & 5 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
512KB (B) |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
1MB |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
CPU SPEED SELECTION | |||
|
Speed |
JP21 |
JP22 |
JP23 |
|
20MHz |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
25MHz |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
33MHz |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
40MHz |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
|
50iMHz |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
50MHz |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
66iMHz |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
75iMHz |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
100iMHz |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
CPU TYPE SELECTION | |||||
|
Type |
JP16 |
JP17 |
JP18 |
JP19 |
JP20 |
|
CX468S |
2 & 3, 4 & 5 |
1 & 2 |
1 & 2, 3 & 4 |
2 & 3 |
2 & 3 |
|
80486SX |
Open |
Open |
Open |
2 & 3 |
2 & 3 |
|
SL80486SX |
3 & 4, 5 & 6 |
Open |
4 & 5 |
2 & 3 |
2 & 3 |
|
486 Overdrive |
Open |
Open |
Open |
1 & 2 |
2 & 3 |
|
SL486 Overdrive |
5 & 6 |
Open |
4 & 5 |
1 & 2 |
2 & 3 |
|
80487SX |
Open |
Open |
Open |
1 & 2 |
2 & 3 |
|
CX486DX |
2 & 3, 4 & 5 |
1 & 2 |
1 & 2, 3 & 4 |
1 & 2 |
2 & 3 |
|
80486DX |
Open |
Open |
Open |
1 & 2 |
2 & 3 |
|
SL80486DX |
3 & 4, 5 & 6 |
Open |
4 & 5 |
1 & 2 |
2 & 3 |
|
80486DX2 |
Open |
Open |
Open |
1 & 2 |
2 & 3 |
|
SL80486DX2 |
3 & 4, 5 & 6 |
Open |
4 & 5 |
1 & 2 |
2 & 3 |
|
CX486DX2 |
2 & 3, 4 & 5 |
1 & 2 |
1 & 2, 3 & 4 |
1 & 2, 4 & 5 |
2 & 3 |
|
80486DX4 (2x) |
3 & 4, 5 & 6 |
5 & 6 |
4 & 5 |
1 & 2 |
2 & 3 |
|
80486DX4 (2.5x) |
3 & 4, 5 & 6 |
4 & 5 |
4 & 5 |
1 & 2 |
2 & 3 |
|
80486DX4 (3x) |
3 & 4, 5 & 6 |
Open |
4 & 5 |
1 & 2 |
2 & 3 |
|
P24T |
5 & 6 |
Open |
4 & 5 |
1 & 2 |
1 & 2 |
|
Note: Pins designated should be in the closed position. | |||||
|
CPU TYPE SELECTION | |
|
Type |
JP11 |
|
Cyrix |
Pins 1 & 2 closed |
|
Intel |
Pins 2 & 3 closed |
|
CPU HARDWARE TRAP SELECTION | ||
|
Type |
JP5 |
JP6 |
|
CX468S |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
|
80486SX |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
SL80486SX |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
CX486DX |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
|
80486DX |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
SL80486DX |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
80486DX2 |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
SL80486DX2 |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
CX486DX2 |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
|
80486DX4 |
Pins 1 & 2 closed |
Pins 2 & 3 closed |
|
P24T |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
CPU VOLTAGE SELECTION | ||
|
Voltage |
JP12 |
JP15 |
|
3v |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
5v |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
VL BUS WAIT STATE SELECTION | |
|
Setting |
JP26 |
|
0 |
Pins 1 & 2 closed |
|
1 |
Pins 2 & 3 closed |
|
VL BUS SPEED SELECTION | |
|
Speed |
JP27 |
|
<= 33MHz |
Pins 1 & 2 closed |
|
>33 MHz |
Pins 2 & 3 closed |