DIGITAL EQUIPMENT CORPORATION
PC 386 CE (IPB1)
| 
 Processor  | 
 80386SX  | 
| 
 Processor Speed  | 
 16MHz  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 Video Chip Set  | 
 None  | 
| 
 Maximum Onboard Memory  | 
 4MB  | 
| 
 Maximum Video Memory  | 
 None  | 
| 
 Cache  | 
 None  | 
| 
 BIOS  | 
 Unidentified  | 
| 
 Dimensions  | 
 220mm x 220mm  | 
| 
 I/O Options  | 
 External memory slots (2), floppy drive interface, SCSI interface, parallel port, serial ports (2)  | 
| 
 NPU Options  | 
 80387  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Front panel connector  | 
 P1  | 
 Serial port  | 
 P8  | 
| 
 Speaker  | 
 P2  | 
 Serial port  | 
 P9  | 
| 
 Floppy drive interface  | 
 P4  | 
 SCSI interface  | 
 J19  | 
| 
 External battery  | 
 P6  | 
 External memory slots  | 
 SL1 & SL2  | 
| 
 Parallel port  | 
 P7  | ||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Label  | 
 Position  | |
| 
 »  | 
 Factory configured - do not alter  | 
 J1  | 
 Unidentified  | 
| 
 »  | 
 Factory configured - do not alter  | 
 J2  | 
 Unidentified  | 
| 
 »  | 
 Factory configured - do not alter  | 
 J3  | 
 Unidentified  | 
| 
 »  | 
 Speaker volume select normal volume  | 
 W1  | 
 Open  | 
| 
 Speaker volume select low volume  | 
 W1  | 
 Closed  | |
| 
 »  | 
 SCSI clock speed select 8MHz  | 
 W11  | 
 Pins 1 & 2 closed  | 
| 
 SCSI clock speed select 16MHz  | 
 W11  | 
 Pins 2 & 3 closed  | |
| 
 »  | 
 Floppy drive pre-compensation mode 125ns  | 
 W13  | 
 Open  | 
| 
 Floppy drive pre-compensation mode 187ns  | 
 W13  | 
 Closed  | |
| 
 »  | 
 Logic ground is connected to chassis ground  | 
 W20  | 
 Closed  | 
| 
 Logic ground is not connected to chassis ground  | 
 W20  | 
 Open  | |
| 
 »  | 
 Parallel port IRQ select IRQ5  | 
 W21  | 
 Pins 1 & 2 closed  | 
| 
 Parallel port IRQ select IRQ7  | 
 W21  | 
 Pins 2 & 3 closed  | |
| 
 Normal mode enabled  | 
 SW1/1  | 
 Off  | |
| 
 Manufacturing mode enabled  | 
 SW1/1  | 
 On  | |
| 
 PC mode enabled  | 
 SW1/2  | 
 Off  | |
| 
 Terminal server mode enabled  | 
 SW1/2  | 
 On  | |
| 
 Video speed select slow  | 
 SW2/1  | 
 Off  | |
| 
 Video speed select fast  | 
 SW2/1  | 
 On  | |
| 
 Monitor type select color  | 
 SW2/2  | 
 On  | |
| 
 Monitor type select monochrome  | 
 SW2/2  | 
 Off  | |
| 
 DRAM CONFIGURATION  | ||||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
 Bank 2  | 
 Bank 3  | 
| 
 1MB  | 
 1MB  | 
 None  | 
 None  | 
 None  | 
| 
 2MB  | 
 1MB  | 
 (1) 1M x 9  | 
 None  | 
 None  | 
| 
 3MB  | 
 1MB  | 
 (1) 1M x 9  | 
 (1) 1M x 9  | 
 None  | 
| 
 4MB  | 
 1MB  | 
 (1) 1M x 9  | 
 (1) 1M x 9  | 
 (1) 1M x 9  | 
| 
 Note: Bank 0 is factory installed and is not configurable.  | ||||
| 
 DRAM JUMPER CONFIGURATION  | ||
| 
 Size  | 
 W2  | 
 W3  | 
| 
 1MB  | 
 Open  | 
 Open  | 
| 
 2MB  | 
 Closed  | 
 Open  | 
| 
 3MB  | 
 Open  | 
 Closed  | 
| 
 4MB  | 
 Closed  | 
 Closed  | 
| 
 FLOPPY DRIVE SELECTION  | ||||
| 
 Setting  | 
 W4  | 
 W6  | 
 W7  | |
| » | 
 Enabled  | 
 Closed  | 
 Closed  | 
 Closed  | 
| 
 Disabled  | 
 Open  | 
 Open  | 
 Open  | |
| 
 FLOPPY DRIVE MOTOR SPEED SELECTION  | |||
| 
 Speed  | 
 W10  | 
 W12  | |
| » | 
 Single  | 
 Pins 2 & 3 closed  | 
 Pins 2 & 3 closed  | 
| 
 Dual  | 
 Pins 1 & 2 closed  | 
 Pins 1 & 2 closed  | |
| 
 SCSI INTERRUPT SELECTION  | |||
| 
 IRQ  | 
 W14  | 
 W15  | 
 W16  | 
| 
 IRQ10  | 
 Open  | 
 Open  | 
 Closed  | 
| 
 IRQ12  | 
 Open  | 
 Closed  | 
 Open  | 
| 
 IRQ14  | 
 Closed  | 
 Open  | 
 Open  |