TULIP COMPUTERS
DC/DT 486SX (TC35)
| 
 Processor  | 
 80486SX/80487SX/80486DX/ODP486SX  | 
| 
 Processor Speed  | 
 20/40(internal)MHz  | 
| 
 Chip Set  | 
 Texas Instruments  | 
| 
 Max. Onboard DRAM  | 
 20MB  | 
| 
 Cache  | 
 256K  | 
| 
 BIOS  | 
 Phoenix  | 
| 
 Dimensions  | 
 330mm x 218mm  | 
| 
 I/O Options  | 
 Floppy drive interface, IDE interface, parallel port, serial ports(2), VGA feature connector, VGA port  | 
| 
 NPU Options  | 
 None  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 VGA port  | 
 CN1  | 
 LED, Speaker, Batteries  | 
 J2  | 
| 
 Serial port 2  | 
 CN2  | 
 IDE interface  | 
 J3  | 
| 
 Parallel port  | 
 CN3  | 
 VESA feature connector  | 
 J9  | 
| 
 Serial port 1  | 
 CN4  | 
 Floppy drive interface  | 
 J10  | 
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Jumper  | 
 Position  | |
| 
 »  | 
 Parallel port unidirectional (printer)  | 
 J20  | 
 Pins 1 & 2 closed  | 
| 
 Paralled port bidirectional  | 
 J20  | 
 Pins 2 & 3 closed  | |
| 
 »  | 
 Battery - Rechargeable  | 
 J21  | 
 Pins 1 & 2 closed  | 
| 
 Battery - Non-rechargeable  | 
 J21  | 
 N/A  | |
| 
 »  | 
 Factory configured - do not alter  | 
 J22  | 
 N/A  | 
| 
 CPU UPGRADE TYPE CONFIGURATION  | ||
| 
 UPGRADE  | 
 J14  | 
 J18  | 
| 
 80487SX  | 
 N/A  | 
 Pins 2 & 3 closed  | 
| 
 80486DX  | 
 Pins 1 & 2 closed  | 
 Pins 2 & 3 closed  | 
| 
 80486DX2  | 
 Pins 1 & 2 closed  | 
 Pins 2 & 3 closed  | 
| 
 ODP486SX  | 
 N/A  | 
 Pins 2 & 3 closed  | 
| 
 CACHE CONFIGURATION  | |||
| 
 Size  | 
 Bank 0  | 
 TAG  | 
 J11  | 
| 
 64KB  | 
 (9) 8K x 8  | 
 (1) 64K x 1  | 
 N/A  | 
| 
 256KB  | 
 (9) 32K x 8  | 
 (1) 64K x 1  | 
 Pins 1 &2, 3 & 4 closed  | 
| 
 DRAM CONFIGURATION  | ||
| 
 Expansion from:  | 
 Expansion to:  | 
 Bank 0  | 
| 
 4MB  | 
 8MB  | 
 (4) 1MB x 9  | 
| 
 4MB  | 
 20MB  | 
 (4) 4MB x 9  | 
| 
 Note: 4MB is internal memory and is not configurable.  | ||
| 
 VRAM CONFIGURATION  | |
| 
 VRAM  | 
 J23  | 
| 
 512KB  | 
 Pins 1 & 2 closed  | 
| 
 1024KB  | 
 Pins 2 & 3 closed  | 
| 
 VRAM CONFIGURATION  | ||
| 
 Expansion from:  | 
 Expansion to:  | 
 VRAM  | 
| 
 512KB  | 
 1MB  | 
 (4) 256K x 4  | 
| 
 Note: 512KB is internal memory and is not configurable.  | ||