IBM CORPORATION
PS/2 MODEL 55SX
| 
 Processor  | 
 80386SX  | 
| 
 Processor Speed  | 
 16MHz  | 
| 
 Chip Set  | 
 None  | 
| 
 Max. Onboard DRAM  | 
 4MB  | 
| 
 Cache  | 
 None  | 
| 
 BIOS  | 
 IBM  | 
| 
 Dimensions  | 
 330mm x 218mm  | 
| 
 I/O Options  | 
 Serial port, parallel port, pointing device connector, video port, floppy drive interface, proprietary bus expansion slot  | 
| 
 NPU Options  | 
 80387SX  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 Video port  | 
 J1  | 
 Keyboard  | 
 J5  | 
| 
 Serial port  | 
 J2  | 
 Floppy drive interface  | 
 J11  | 
| 
 Parallel port  | 
 J3  | 
 CMOS RAM extension module  | 
 J14  | 
| 
 Pointing device  | 
 J4  | 
 MCA bus expansion slot  | 
 J15  | 
| 
 DRAM CONFIGURATION  | ||
| 
 Size  | 
 Bank 0  | 
 Bank 1  | 
| 
 1MB  | 
 (1) 256K x 36  | 
 NONE  | 
| 
 2MB  | 
 (1) 256K x 36  | 
 (1) 256K x 36  | 
| 
 4MB  | 
 (1) 1M x 36  | 
 NONE  | 
| 
 Note:Onboard memory does not have to be installed in order to use memory expansion cards.  | ||