Common Options : Enabled, Disabled

Details

This is a BIOS feature that introduces a small delay before the memory controller tries to read from a DRAM module. This feature was added to facilitate the operation of certain SDRAM modules that have unusual timings. You need not enable this feature unless you experience strange system crashes that you suspect is due to memory instability.

Therefore, it's recommended that you leave it as Disabled unless you are experiencing some system stability issues. In that case, you can enable this feature to see if your DRAM module is one of those with unusual timings and to correct that problem.