VISION TECHNOLOGIES
VAES3486
|
Processor |
80386DX/CX486DLC/CX486S/CX487S/80486SX(PQFP)/ 80486SX/80486DX/80486DX2/Pentium Overdrive |
|
Processor Speed |
16/20/25/33/40/50(internal)/50/66(internal)MHz |
|
Chip Set |
OPTI |
|
Max. Onboard DRAM |
64MB |
|
Cache |
64/128/256KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit VESA local bus slots (2), floppy drive interface, IDE interface, green PC connector, parallel port, serial ports (2) |
|
NPU Options |
CX387 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Serial port 1 |
CN1 |
Power supply/sleep mode |
JP2 |
|
Serial port 2 |
CN2 |
Speaker |
JP28 |
|
Floppy drive interface |
CN3 |
Green PC connector |
JP30 |
|
IDE interface |
CN4 |
Turbo switch |
JP33 |
|
Parallel port |
CN5 |
Turbo LED |
JP38 |
|
External battery |
J10 |
Reset switch |
S1 |
|
IDE interface LED |
J17 |
32-bit VESA local bus slots |
SL1 & SL2 |
|
Power LED & keylock |
J22 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
» |
Factory configured - do not alter |
J9 |
N/A |
|
» |
Pentium Overdrive enabled |
JP1 |
Open |
|
Pentium Overdrive disabled |
JP1 |
Closed | |
|
» |
VESA supports bus mastering |
JP4 |
Closed |
|
VESA does not support bus mastering |
JP4 |
Open | |
|
» |
On board PS/2 style mouse enabled |
JP14 |
Closed |
|
On board PS/2 style mouse disabled |
JP14 |
Open | |
|
» |
Power down mode enabled |
JP15 |
pins 2 & 3 closed |
|
Power down mode disabled |
JP15 |
pins 1 & 2 closed | |
|
» |
Keyboard password clear |
JP16 |
Closed |
|
Keyboard password enabled |
JP16 |
Open | |
|
» |
NPU disabled |
JP24 |
pins 1 & 2 closed |
|
NPU enabled |
JP24 |
pins 2 & 3 closed | |
|
» |
CMOS memory normal operation |
JP29 |
pins 2 & 3 closed |
|
CMOS memory clear |
JP29 |
pins 1 & 2 closed | |
|
» |
Green PC power down mode enabled |
JP30 |
Open |
|
Green PC power down mode disabled |
JP30 |
Closed | |
|
» |
Turbo disabled |
JP33 |
Closed |
|
Turbo enabled |
JP33 |
Open | |
|
» |
VESA card type select standard VESA VGA |
JP34 |
pins 2 & 3 closed |
|
VESA card type select Tekram VESA/Cache IDE |
JP34 |
pins 1 & 2 closed | |
|
Note: The location of JP16 is unidentified. | |||
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(1) 256K x 36 |
NONE |
|
2MB |
(1) 256K x 36 |
(1) 256K x 36 |
|
4MB |
(1) 1M x 36 |
NONE |
|
16MB |
(1) 4M x 36 |
NONE |
|
32MB |
(1) 8M x 36 |
NONE |
|
64MB |
(1) 16M x 36 |
NONE |
|
DRAM JUMPER CONFIGURATION | |
|
Type |
JP42 |
|
Only Bank 0 used |
pins 1 & 2 closed |
|
Bank 0 & Bank 1 used |
pins 2 & 3 closed |
|
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 x 8 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1)32K x 8 |
|
CACHE JUMPER CONFIGURATION | ||||
|
Size |
JP3 |
JP18 |
JP19 |
JP20 |
|
64KB |
pins 2 & 3 closed |
Closed |
Closed |
pins 2 & 3 closed |
|
128KB |
pins 1 & 2 closed |
Open |
Closed |
pins 1 & 2 closed |
|
256KB |
pins 2 & 3 closed |
Closed |
Closed |
pins 2 & 3 closed |
|
CPU TYPE CONFIGURATION | |||||||||
|
Type |
JP17 |
JP21 |
JP23 |
JP25 |
JP26 |
JP27 |
JP31 |
JP32 |
JP36 |
|
80386DX(PGA) |
Open |
2 & 3 |
Open |
1 & 2 |
Open |
Open |
Closed |
Open |
Open |
|
CX486DLC |
Open |
2 & 3 |
Open |
1 & 2 |
Open |
Open |
Closed |
Open |
Open |
|
80386DX(PQFP) |
Open |
2 & 3 |
Open |
1 & 2 |
Open |
Open |
Open |
Open |
Open |
|
CX486S |
1 & 2 |
2 & 3 |
Closed |
2 & 3 |
Open |
Open |
Closed |
Closed |
1 & 2 |
|
Cx487S |
1 & 2 |
2 & 3 |
Closed |
2 & 3 |
Closed |
Open |
Closed |
Closed |
1 & 2 |
|
80486SX(PQFP) |
2 & 3 |
2 & 3 |
Open |
1 & 2 |
Open |
Open |
Open |
Open |
Open |
|
80486SX(PGA) |
1 & 2 |
2 & 3 |
Open |
1 & 2 |
Open |
Open |
Closed |
Closed |
2 & 3 |
|
80486DX |
1 & 2 |
2 & 3 |
Open |
1 & 2 |
Open |
Open |
Closed |
Closed |
1 & 2 |
|
80486DX-50(only) |
1 & 2 |
2 & 3 |
Open |
2 & 3 |
Open |
Open |
Closed |
Closed |
1 & 2 |
|
80486DX2 |
1 & 2 |
2 & 3 |
Open |
1 & 2 |
Open |
Open |
Closed |
Closed |
1 & 2 |
|
P24T (WB) |
1 & 2 |
1 & 2 |
Closed |
2 & 3 |
Open |
Open |
Closed |
Closed |
1 & 2 |
|
P24T (WT) |
1 & 2 |
1 & 2 |
Closed |
2 & 3 |
Open |
Closed |
Closed |
Closed |
1 & 2 |
|
Note: Pins designated should be in the closed position (The location of JP25 and JP26 is unidentified). | |||||||||
|
CPU TYPE CONFIGURATION | |||
|
Type |
JP5 |
JP22 |
JP35 |
|
80386/CX486DLC |
Open |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
80486/P24T/CX486S |
Closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
CPU SPEED CONFIGURATION | |||
|
Speed |
JP39 |
JP40 |
JP41 |
|
16MHz |
Open |
Closed |
Open |
|
20MHz |
Open |
Closed |
Closed |
|
25MHz |
Closed |
Open |
Open |
|
33MHz |
Closed |
Open |
Closed |
|
40MHz |
Closed |
Closed |
Open |
|
50iMHz |
Closed |
Open |
Open |
|
50MHz |
Closed |
Closed |
Closed |
|
66iMHz |
Closed |
Open |
Closed |
|
DMA CHANNEL INTERRUPT CONFIGURATION | |||||||||
|
DRQ |
DACK |
JP6 |
JP7 |
JP8 |
JP9 |
JP10 |
JP11 |
JP12 |
JP13 |
|
DRQ3 |
DACK3 |
Closed |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
|
DRQ5 |
DACK5 |
Open |
Closed |
Open |
Open |
Open |
Closed |
Open |
Open |
|
DRQ6 |
DACK6 |
Open |
Open |
Closed |
Open |
Open |
Open |
Closed |
Open |
|
DRQ7 |
DACK7 |
Open |
Open |
Open |
Closed |
Open |
Open |
Open |
Closed |
|
VESA WAIT STATE CONFIGURATION | |
|
Wait states |
JP37 |
|
0 wait states |
Open |
|
1 wait state |
Closed |