Underclocking & CAS Latency

[Morlock]

I am buying the Gigabyte GA-MA790FXT-UD5P and am having trouble finding some low latency 1600MHz memory which is on the official supported memory list.

I have found some 1800MHz memory which is officially supported and has a latency of 8-8-8-27.

If I underclock it to 1600MHz, will it decrease the latency?

 

[Morlock]

Thanks. Looks like this might be a good solution for some cheap, low latency RAM.