DFI UT X58-T3EH8 continued - Part 2

[ci2kla]

Looks good. Are you changing subtimings (or other RAM/IMC settings too)? In case do tell, I want to try them too.

I'm experimenting with some "high-BCLK, low-Volt"-actions and getting some very proposing results by letting the RAM on "relax" timings for now. I couldn't get it stable at over BCLK212 on my previews setup (with 1333MHZ CL7 RAM), but it seams to be running stable at BCLK216 now (and I have seen indications for even higher). @4.1GHZ(216x19) seams to be stable for 24/7 use .

4.1GHZ(216x19), 1.18v

HyperPi 32M:


45 min OCCT:


I have to test more, but it seams to be running stable at higher BCLK with the new RAM

It's good to hear you got good results with these babies
From my own experiance, CPU VTT is also important when going for higher bclk overclocking. Also if you have time you can play with IOH / IOH Analog voltage as well as they seems have effect when getting to ultra high base clocks. If you hit a wall, try up the PCI-E to 105+~

[Sam_oslo]

It's good to hear you got good results with these babies
From my own experiance, CPU VTT is also important when going for higher bclk overclocking. Also if you have time you can play with IOH / IOH Analog voltage as well as they seems have effect when getting to ultra high base clocks. If you hit a wall, try up the PCI-E to 105+~

Yes I'm having some fun and good results with these sticks .

VVT-volt seams to be very CPU-pendent. So far, my w3520 hasn't care much about VVT, and I can't see it having any effect on stability, yet. So far (up to 216x19) it is running stable with anything from 1.21v to 1.28v VVT. But it doesn't like high VVT-volts at all, and it can't even get into windows with VVT>1.32v .

On the other hand, my i7 920 C0 wouldn't run stable at it's highest 24/7 OC, @4GHZ(211x19) 1.34v with anything else than VVT=1.34v. But it didn't care much about VVT at lower speeds and would run stable with almost anything at < @3.8GHZ.

I have to test more to make sure, but so far, the new RAM haven't had any affect on VVT, either.


I belive VVT is very CPU-batch dependent and seams to get important when you get closer to your max-stable 24/7 OC, but not before that.

Anyways, does this mean that you haven't changed subtimings or other RAM/IMC settings

[ci2kla]

Yes I'm having some fun and good results with these sticks .

VVT-volt seams to be very CPU-pendent. So far, my w3520 hasn't care much about VVT, and I can't see it having any effect on stability, yet. So far (up to 216x19) it is running stable with anything from 1.21v to 1.28v VVT. But it doesn't like high VVT-volts at all, and it can't even get into windows with VVT>1.32v .

On the other hand, my i7 920 C0 wouldn't run stable at it's highest 24/7 OC, @4GHZ(211x19) 1.34v with anything else than VVT=1.34v. But it didn't care much about VVT at lower speeds and would run stable with almost anything at < @3.8GHZ.

I have to test more to make sure, but so far, the new RAM haven't had any affect on VVT, either.


I belive VVT is very CPU-batch dependent and seams to get important when you get closer to your max-stable 24/7 OC, but not before that.

Anyways, does this mean that you haven't changed subtimings or other RAM/IMC settings

Subtimings = no.
Some BIOS settings = yes, PWM frequency Reduce 15%, all data vref -0.5%
VTT is very useful when overclocking uncore frequency. Try it out!~