EVGA X58 3X SLI - Manual (Page 60)

Rank Interleave Setting
This function is allows you to select the Rank Interleave Setting. The options
are 1 way, 2 way and 4 way.
tCL Setting
This function is set the CAS latency. The options are 0 through 18.
tRCD Setting
This function is set the RAS to CAS Delay for Read/Write commands to the
same bank. The options are 0 through 15.
tRP Setting
This function is set the Row Precharge time. This is the Precharge-to-Active
or Auto-to-Refresh of the same bank. The options are 0 through 15.
tRAS Setting
This function is set the minimum RAS# active time. The options are 0
through 31.
Command Rate
This function is set the command timing setting on a per clock unit basis.
The options are Auto, 1T and 2T.