Patent ID: 7733720

Claim:
A computer performed method for determining digital voltage selection control values for a storage device having per-element selectable power supply voltages, comprising: performance testing of storage cells within a plurality of elements of the storage device; determining whether or not a result of the testing indicates that one or more storage cells or other circuits within a particular element have marginal performance or fail at a nominal desired operating voltage for the storage device; in response to determining that the result of the testing indicates that the one or more storage cells or other circuits within a particular element have marginal performance or fail at the desired operating voltage, setting a state of a digital control value corresponding to the particular element within a data set stored within a computer-readable storage of the computer system, wherein the state of the digital control value selects a higher operating power supply value for the particular element; and in response to determining that the result of the testing indicates that the one or more storage cells or other circuits within the particular element do not have marginal performance and do not fail at the desired operating voltage, setting a different state of the corresponding digital control value within the data set.