GA-870A-UD3 and Ripjaws F3-12800CL7D-4GBRM (2Gx2) timings

[AxelBSD]

Hi,

I have built a box with the motherboard Gigabyte GA-870A-UD3 and AMD Phenom x6 1090T BE, with the memory kit Ripjaws F3-12800CL7D-4GBRM (2Gx2).
The timings of the memory are : 7-8-7-24-2N - 1.6v
So I have set these settings in the BIOS : x8 1600Mhz - 7-8-7-24-2T - DDRAM voltage : 1.6v
All the others values are set with default values (auto).

My setup is it correct ?
Have I got to modify the NB voltage from 1.1v to 1.2v ?

Thanks.

[GSKILL TECH]

If it is unstable, then yes you need to.

Thank you
GSKILL TECH

[AxelBSD]

Thanks for your reply.
After reading the forum, I have set all SPD values (in SPD column in the BIOS) except the 7-8-7 (SPD values are 9-9-9).
Now my settings in the BIOS are : x8 1600Mhz - 7-8-7-24-1T-[SPD Values] - DDRAM voltage : 1.6v
I will run an OCCT test tonight to see if my system is stable.

[Tradesman]

Let us know

[AxelBSD]

My system has passed with success the OCCT test (Large Data Set).

I attached CPU-Z and OCCT screenshots :



If needed, I can take a photo of my BIOS settings.

[GSKILL TECH]

Fantastic, looks good!

Thank you
GSKILL TECH

[AxelBSD]

Hi,
I have passed with success a MemTest without problem.
Here the settings and timings I have set :
x8 1600Mhz
CL: 7
tRCD : 8
tRP : 7
tRAS : 24
tRC : 31
CR : 2T
DDRAM voltage : 1.6v

Why tRC set to 31 ? because the forumula is : tRC = tRAS + tRP, so (31 = 24 + 7).
All the other settings have been reset to their AUTO values in the BIOS.

Using 1T, OCCT test is passed without problem, but the kit is marked to work at 7-8-7-24-2T @1.6v.

[Tradesman]

Some sets (sticks) are a little stronger than others), if your set is one of those and can run 1T, even better, it provides a slight performance increase