DELL COMPUTER CORPORATION
System 425E/433E
Processor |
80486DX |
Processor Speed |
25/33MHz |
Chip Set |
VLSI |
Max. Onboard DRAM |
32MB |
Cache |
None |
BIOS |
AMI |
Dimensions |
353mm x 291mm |
I/O Options |
Parallel port, serial ports (2) |
NPU Options |
4167 |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Serial port one |
COM1 |
Power LED & keylock |
KYLCK |
Serial port two |
COM2 |
Parallel port |
LPT1 |
Reset switch |
J20 |
Speaker |
SPKR |
Keyboard |
KBD |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper |
Position | |
» |
Factory configured - do not alter |
JM2 |
Open |
» |
Monitor type select color |
JM4 |
pins 2 & 3 closed |
Monitor type select monochrome |
JM4 |
pins 1 & 2 closed |
DRAM CONFIGURATION | ||||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
2MB |
(2) 256K x 36 |
NONE |
NONE |
NONE |
4MB |
(2) 256K x 36 |
(2) 256K x 36 |
NONE |
NONE |
6MB |
(2) 256K x 36 |
(2) 256K x 36 |
(2) 256K x 36 |
NONE |
8MB |
(2) 256K x 36 |
(2) 256K x 36 |
(2) 256K x 36 |
(2) 256K x 36 |
8MB |
(2) 1M x 36 |
NONE |
NONE |
NONE |
10MB |
(2) 1M x 36 |
(2) 256K x 36 |
NONE |
NONE |
12MB |
(2) 1M x 36 |
(2) 256K x 36 |
(2) 256K x 36 |
NONE |
14MB |
(2) 1M x 36 |
(2) 256K x 36 |
(2) 256K x 36 |
(2) 256K x 36 |
16MB |
(2) 1M x 36 |
(2) 1M x 36 |
NONE |
NONE |
18MB |
(2) 1M x 36 |
(2) 1M x 36 |
(2) 256K x 36 |
NONE |
20MB |
(2) 1M x 36 |
(2) 1M x 36 |
(2) 256K x 36 |
(2) 256K x 36 |
24MB |
(2) 1M x 36 |
(2) 1M x 36 |
(2) 1M x 36 |
NONE |
28MB |
(2) 1M x 36 |
(2) 1M x 36 |
(2) 1M x 36 |
(2) 256K x 36 |
32MB |
(2) 1M x 36 |
(2) 1M x 36 |
(2) 1M x 36 |
(2) 1M x 36 |
DRAM JUMPER CONFIGURATION | ||||
Size |
J26A |
J26B |
J26C |
J26D |
2MB |
Closed |
N/A |
N/A |
N/A |
4MB |
Closed |
Closed |
N/A |
N/A |
6MB |
Closed |
Closed |
Closed |
N/A |
8MB |
Closed |
Closed |
Closed |
Closed |
8MB |
Open |
N/A |
N/A |
N/A |
10MB |
Open |
Closed |
N/A |
N/A |
12MB |
Open |
Closed |
Closed |
N/A |
14MB |
Open |
Closed |
Closed |
Closed |
16MB |
Open |
Open |
N/A |
N/A |
18MB |
Open |
Open |
Closed |
N/A |
20MB |
Open |
Open |
Closed |
Closed |
24MB |
Open |
Open |
Open |
N/A |
28MB |
Open |
Open |
Open |
Closed |
32MB |
Open |
Open |
Open |
Open |