Abstract: An adjustable filter for a computing system having memory error detecting and correcting features selectively masks user-specified errors, thereby preventing storage of such errors in a control and status register (CSR). The invention includes a command and data register 102; a CSR 103; an error detecting and correcting circuit 108, including a check bit generator 108a, an error detecting circuit 108b, and an error correcting circuit 108c; a memory module 114; and filter logic 300. The contents of a filter control register 220 of the CSR 103 operate to specify a particular error which is to be "filtered". The filter logic 300 includes a plurality of logic gates that compare the user-specified signals stored in the register 220 with error-related signals reported by the error detecting circuit 108b. If the signals match, information associated with the detected error is prevented from being stored in the CSR 103.