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IBM PS/2 FAQ | What UART chip does my PS/2 have?  


      Model ??      |          UART chip           |    Maxinum bps 
----------------------------------------------------------------------- 
  Model 25          |     NS8250                    |         9,600 
  Model 25-286  |     NS16450                  |        19,200 
  Model 25 SX   |     NS16450                  |        19,200 
  Model 30          |     NS8250                    |         9,600 
  Model 30-286  |     NS16450                  |        19,200 
  Model 35          |     NS16450                  |        19,200 
  Model 40          |     NS16450                  |        19,200 
  Model L40        |     NS16450                  |        19,200 
  Model N45       |     NS16450                  |        19,200 
  Model 50          |     NS16450                  |        19,200 
  Model N51       |     NS16450                  |        19,200 
  Model 55          |     NS16550A               |        19,200 
  Model 56          |     NS16550A type 4    |        345,600 
  Model 57          |     NS16550A type 4    |        345,600 
  Model CL57     |     NS16450                  |        19,200 
  Model 60          |     NS16450                  |        19,200 
  Model 65          |     NS16550A               |        19,200 
  Model 70          |     NS16550A               |        19,200 
  Model P70       |     NS16550A               |        19,200 
  Model P75       |     NS16550A               |        19,200
  Model 76          |     NS16550A type 4   |         345,600 
  Model 77          |     NS16550A type 4   |         345,600
  Model 80          |     NS16550A               |        19,200 
  Model 85          |     NS16550A type 4   |         345,600
  Model 90          |     NS16550A type 4   |         345,600
  Model 95          |     NS16550A type 4   |         345,600
  Server 500       |     NS16550A type 4   |         345,600
 
Last updated: 2-14-98