Go with BIOS defaults. Test. And then gradually introduce higher clocks for the RAM, testing at each stage. There might be some BIOS setting that gives you stability -- I am trying to remember -- adaptive that's the one :smile:

[QUOTE=paulunderwood;445679]Go with BIOS defaults. Test. And then gradually introduce higher clocks for the RAM, testing at each stage. There might be some BIOS setting that gives you stability -- I am trying to remember -- adaptive that's the one :smile:[/QUOTE]

I should have pointed out that my ram is currently at 2133. I am aware that I will probably need to up the voltage of the memory controller to reach 3000. This is on bios defaults apart from switching on vt-d and vt-x which I use for virtualbox.

[QUOTE=henryzz;445680]I should have pointed out that my ram is currently at 2133. I am aware that I will probably need to up the voltage of the memory controller to reach 3000.[/QUOTE]

2133 is quite low -- good. Try "adaptive" for you CPU.

Added 9.76mv to the cpu as an adaptive offset.

[QUOTE=henryzz;445683]Added 9.76mv to the cpu as an adaptive offset.[/QUOTE]

Let us know if it is prime95-mprime-torture-test stable now. If it is you can start to test with higher memory clocks.

[QUOTE=paulunderwood;445684]Let us know if it is prime95-mprime-torture-test stable now. If it is you can start to test with higher memory clocks.[/QUOTE]

Could be a decent wait. It took an hour last time.
What temperature would you be expecting with a nh-u14s cooler? The intel extreme tuning facility is reporting 69C currently. My old cpu would have hated that.

[QUOTE=henryzz;445689]Could be a decent wait. It took an hour last time.
What temperature would you be expecting with a nh-u14s cooler? The intel extreme tuning facility is reporting 69C currently. My old cpu would have hated that.[/QUOTE]

69C seems reasonable considering the machine is running flat out at 4GHz -- just keep it dust-free :wink:

[QUOTE=paulunderwood;445693]69C seems reasonable considering the machine is running flat out at 4GHz -- just keep it dust-free :wink:[/QUOTE]

Failed again. Now got 19.5mv added

Is there a way to use just "adaptive" without an offset?

Also turning off turbo might help.

[QUOTE=henryzz;445694]Failed again. Now got 19.5mv added[/QUOTE]

Seems to be failing much quicker at +19.5mv. 10 minutes rather than an hour.
All of these failures have been zeroed residues rather than the expected value.

[QUOTE=henryzz;445697]Seems to be failing much quicker at +19.5mv. 10 minutes rather than an hour.
All of these failures have been zeroed residues rather than the expected value.[/QUOTE]

Have you run memtest86+?