G.Skill Ripjaws-X F3-10666CL7Q System Freeze

[Alphetto]

Excuse my English, I am a Italian user.
My setup

Intel I7 2600 K
VGA Gainward GeForce GTX 570 GS-GLH Core 800MHz Memory GDDR5 4000MHz 1280MB
Hard Disk Hitachi 7K3000 2TB 3.5" 7200rpm 64MB SATA3
.RAM DDR3 G.Skill Ripjaws-X F3-10666CL7Q-16GBXH 1333MHz 16GB (4x4GB) CL7-7-7-21 1.5v
Asus P8Z68-V PRO Socket 1155 Intel Z68 DDR3
Corsair 850 Watt
Zalman 9900 MAX

I have random problems of instability, the system freezes during heavy work or during normal activities is no different.

I have to reboot the computer, reading around the problem should be due to instability of the ram, I would like to know if there is any manual method to set them on a regular basis or there are memories of working (really) for this motherboard?

The temperature of the CPU at full speed is around 60 degrees
Only I have had these problems?
For now seems stable with 8 GB, I set to 1.50 V and 7-7-7-21 in the bios, but I know there are other problems, I would like to have a stable configuration, you have any advice?

[Tradesman]

Might check the CR (Command Rate) it may have defaulted to 1T and should be 2T, w/ 16GB may need a little extra voltage to the CPU/VTT, .03 or so

[Alphetto]

I do not find these settings, especially the CR, I have the EFI BIOS: (

[Tradesman]

It may show as Command Rate, Command Frequency or something to that effect, look for a setting or 1T, 1N, 2T or 2N....you will want it at 2 regardless of the letter designator

[Alphetto]

I have only had these problems? Or there were other cases?

[Tradesman]

Did you manually set the sticks up or did you enable XMP and run them that way or is everything on AUTO?

[Alphetto]

I will Set 7-7-7-21-2, 1,5 V.

Now the system is turned on for 12 hours without problems, I removed everything for overclocking, and I moved the sata port on another. It seems to work and stable with no freeze. Asus AI Suite is set to stability and performance, could also be that?

[Tradesman]

If stable, I'd keep as is, if further problems let us know

[Alphetto]

I found out it was the hard drive, the connector on SATA3 was gray, had to be placed on the BLUE ...... Thanks for all the support!

[Tradesman]

No problem, glad it worked out