GA-X58A-UD3R and Corsair CMX6GX3M3A133C9 memory upgrade

[Mikeyrjiom]

Hi
I have the above mobo and memory and after setting the bios with 9-9-9-24 memory timings, this has been stable for a few months now.
I want to take the 6Gb to 12Gb and purchased another 6Gb CMX6GX3M3A133C9 set to add to the original.

I think this may have been a mistake but would like to know if anyone has it running stable with the two 6Gb triple sets and what settings in bios.
Looks like the mem controller voltage has to be increased and maybe I will loose a little on the speed but have no idea what the settings should be.   

Many thanks
Mikeyrjiom

[Dark Mantis]

Hi and welcome to the Gigabyte Forum.

Well the good news is that as long as the memory is the same as the first set it should work fine, with a bit of tweaking.

The bad news is that you have now got twice as much as me!!!

You are going to have to amke sure that you have marked the two sets diferently so that you can tell them apart.

Next the memory voltage is going to have to be increased to make up for the extra loading on the memory controller. If the default is 1.65 increase this to1.68 -1.72v start low.

You will need to increase the QPI/Vtt  also to somewhere between 1.22 and 1.45v. This will have to be played around with until you get stability.

Make sure that your Uncore is set to twice your memory multiplier or twice plus one or two. So if your memory multiplier is 10 the Uncore should be 20-22.

OK I will leave you to play now. Let us know how you get on.