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  |