TANDY/RADIO SHACK
2500 SX/33
| 
 Processor  | 
 80386SX  | 
| 
 Processor Speed  | 
 33MHz  | 
| 
 Chip Set  | 
 Unidentified  | 
| 
 Video Chip Set  | 
 Unidentified  | 
| 
 Maximum Onboard Memory  | 
 10MB  | 
| 
 Maximum Video Memory  | 
 1MB  | 
| 
 Cache  | 
 None  | 
| 
 BIOS  | 
 Unidentified  | 
| 
 Dimensions  | 
 391mm x 384mm  | 
| 
 I/O Options  | 
 Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial port, VGA port, riser slot, headphone connector, volume control  | 
| 
 NPU Options  | 
 80387SX  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 VGA port  | 
 CN1  | 
 Headphone connector  | 
 CN6  | 
| 
 PS/2 mouse port  | 
 CN2  | 
 IDE interface  | 
 CN7  | 
| 
 Parallel port  | 
 CN3  | 
 Floppy drive interface  | 
 CN8  | 
| 
 Serial port  | 
 CN4  | 
 Riser slot  | 
 SL1  | 
| 
 Volume control  | 
 CN5  | ||
| 
 USER CONFIGURABLE SETTINGS  | |||
| 
 Function  | 
 Label  | 
 Position  | |
| 
 »  | 
 On board video enabled  | 
 J1  | 
 Pins 1 & 2 closed  | 
| 
 On board video disabled  | 
 J1  | 
 Pins 2 & 3 closed  | |
| 
 DRAM CONFIGURATION  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 2MB  | 
 2MB  | 
 None  | 
| 
 4MB  | 
 2MB  | 
 (2) 1M x 9  | 
| 
 10MB  | 
 2MB  | 
 (2) 4M x 9  | 
| 
 Note: Bank 0 is factory installed and is not configurable. The location is unidentified.  | ||
| 
 VIDEO MEMORY CONFIGURATION  | 
| 
 Note: Board accepts 512KB/1MB of video memory. The size of the chips are unidentified. The number of banks is unidentified.  |