AMI TECH TIP


TECH TIP NO.       25.003


DATE:              May 9, 1991
BOARD TYPE:        Enterprise I and Enterprise II
RELEASED BY:       Engineering Dept.



Problem:           On Enterprise I and Enterprise II boards, the Keyboard Lock 
		   function does not work.

Reason:            AMI Enterprise I and II EISA boards use AMI KF Version of 
		   the keyboard controller, this keyboard controller works in 
		   autosense mode i.e. it can configure itself as either PS/2 
                   type or as AT type controller.

                   The EISA Specifications provide support for a PS/2 type 
		   mouse interface only.

                   Since AMI Enterprise boards support the PS/2 type mouse, 
		   the keyboard controller on these boards works in PS/2 type 
		   interface. 
              
                   The Keyboard lock function is not supported in the PS/2 type
		   interface.