DELL COMPUTER CORPORATION
V486DX/XX, XXS REV. 2
|
Processor |
80486SX/80487SX/80486DX/80486DX2 |
|
Processor Speed |
25/33/50(internal)MHz |
|
Chip Set |
OPTI |
|
Max. Onboard DRAM |
64MB |
|
Cache |
64/256KB |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
NPU options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J1 |
Serial port 1 |
J10 |
|
Unidentified |
J2 |
Turbo LED |
J23 |
|
Unidentified |
J3 |
Reset switch |
J24 |
|
IDE interface |
J5 |
Power LED & keylock |
J25 |
|
Floppy drive interface |
J6 |
Speaker |
J26 |
|
Parallel port |
J8 |
VGA interface |
J27 |
|
Serial port 2 |
J9 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
» |
Monitor type select color |
W1 |
pins 1 & 2 closed |
|
Monitor type select monochrome |
W1 |
pins 2 & 3 closed | |
|
» |
CMOS memory normal operation |
W2 |
pins 1 & 2 closed |
|
CMOS memory clear |
W2 |
pins 2 & 3 closed | |
|
» |
Factory configured - do not alter |
W3 |
pins 2 & 3 closed |
|
» |
Onboard VGA enabled |
W10 |
pins 1 & 2 closed |
|
Onboard VGA disabled |
W10 |
pins 2 & 3 closed | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
4MB |
(1) 1M x 36 |
NONE |
NONE |
NONE |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
NONE |
|
12MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
|
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB |
(1) 4M x 36 |
NONE |
NONE |
NONE |
|
20MB |
(1) 4M x 36 |
(1) 1M x 36 |
NONE |
NONE |
|
24MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
|
28MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
NONE |
NONE |
|
36MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
NONE |
|
40MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
48MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
NONE |
|
52MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
CACHE CONFIGURATION | |
|
Size |
Bank 0 |
|
64KB |
(8) 16K x 4 |
|
256KB |
(8) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | |||
|
Size |
W4 |
W5 |
W9 |
|
0KB |
Open |
Open |
Open |
|
64KB |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
|
256KB |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
CPU FREQUENCY SELECT | |||
|
CPU type |
W6 |
W7 |
W8 |
|
80486SX |
pins 2 & 3 closed |
pins 2 & 3 closed |
Open |
|
80487SX |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
|
80486DX |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
80486DX2 |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
VIDEO RAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
512KB |
(4) 256KB x 4 |
NONE |
|
1MB |
(4) 256KB x 4 |
(4) 256KB x 4 |
|
Note:Bank 0 is factory installed and is not configurable. | ||
|
VIDEO RAM JUMPER CONFIGURATION | |
|
Size |
SW1/6 |
|
512KB |
On |
|
1MB |
Off |
|
MONITOR REFRESH RATE (800 X 600) | ||
|
Rate |
SW1/1 |
SW1/2 |
|
56Hz |
Off |
Off |
|
60Hz |
Off |
On |
|
72Hz |
On |
Off |
|
56Hz |
On |
On |
|
MONITOR REFRESH RATE (1024 X 768) | ||
|
Rate |
SW1/3 |
SW1/4 |
|
Interlaced |
Off |
Off |
|
60Hz (noninterlaced) |
Off |
On |
|
70Hz (noninterlaced) |
On |
Off |
|
72Hz (noninterlaced) |
On |
On |
|
STANDARD VGA MODES | |
|
Mode |
SW1/5 |
|
40Hz horizontal, 75/80Hz vertical |
On |
|
31.5Hz horizontal, 60/70Hz vertical |
Off |