here is what it says!
This motherboard also provides memory timings adjustments, feature not found on other P965-based motherboards we reviewed. This option, however, is hidden under Advanced, Chipset, North Bridge Configuration menu, and you need to change the “Configure DRAM Timing by SPD” option to “Disable” for the memory configurations to show up. Also, depending on the BIOS version your motherboard is using, you will find more or less options here. Our board came with 0211 BIOS, which provided only the four basic timings adjustment, but after we upgraded the BIOS to version 0904 all the options shown on Figure 6 appeared.
So there it is!
--lupi