You are replacing failed RAM sticks in a server that uses ECC RAM. The only replacement RAM available is non-ECC RAM. Mixing ECC and non-ECC RAM is not recommended as the server will not recognize the non-ECC RAM and all RAM needs to be the same type for proper functioning.

1. You are replacing two failed sticks of memory in a server. The server has ECC RAM installed
because of the error checking feature available. The only replacement RAM you have available
is non-ECC RAM, which is otherwise identical to the RAM in the server. Should you replace the
failed ECC RAM sticks with non-ECC RAM, mixing both ECC and non-ECC RAM in the same
server machine?
A. Yes. As long as there are at least two pairs of ECC RAM in the server, the error checking
feature will remain active.
B. Yes, but although all of the RAM will be recognized by the server and work with no
problems, error checking will not be available.
C. No, because the server will not recognize the non-ECC RAM. All of the RAM needs to be
either ECC or non-ECC.
D. No, because none of the RAM will be recognized and the server will fail to boot.
Solution
Option C
No, because the server will not recognize the non-ECC RAM. All of the RAM needs to be either
ECC or non-ECC.