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301 keyboard error,8603 pointing device error?

my computer was working as normal.i shut it and when i started it after a few minutes,a message appeared in bios screen:post setup errors
-301 keyboard errors
-8603 pointing device errors
my keyboard then stopped working and i am stuck to the screen,i tried 2 other keyboards but to no use
what is the problem?
hasham, January 2008
8603 pointing device error in dos

abdullah, March 2010
how to re pair

raja, August 2008
301 Keyboard did not respond to software reset correctly, or a stuck key failure was detected.
8603: System bus error or mouse error.

abobaker, June 2008
As the error message says you have a keyboard problem. (Remember there is keyboard circuitry inside the PC as well.)

You need to run through the diagnostics for the PC. As you don't say what it is however it it difficult to advise tfurther.

t, January 2008