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*Official* Intel DDR4 24/7 Memory Stability Thread - Page 267

post #2661 of 5782
Quote:
Originally Posted by Praz View Post

Hello

As Raja wrote this cannot be monitored with AIDA. These voltage also have no effect on the values seen for the user set CPU, cache or memory voltages. The voltages related to the OC Socket should not be considered an applied voltage as one would with the CPU or cache voltage for example. The difference being the OC Socket voltages are manipulated to alter the behavior of the associated internal CPU circuits.

As to my preference of 3200 for 24/7 use consider the following for Broadwell-E. One of the OC Socket rails that is manipulated in conjunction with memory speed is being increased up to 35% higher by Intel over stock memory speed. An OC Socket board may add another 30% or so voltage on top of this if the set memory speed is high enough. A lot of of what is going on with these circuits is shrouded in mystery for all but a few at Intel. The long term effect of these increases are even less known.

Thanks Praz... so, you know of at least one user that is testing the effect of long term higher mystery voltages on BWE *as i check my ITP* redface.gif
IS there a really significant jump in going from 3200 to 3400 on BWE? lol - maybe this is why my package temp is always 40C or higher?
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post #2662 of 5782
Quote:
Originally Posted by Blameless View Post

Gigabyte boards with the OC socket reveals some of these reserved voltages to user control in the form of the VL1-6 options that are available, and I've seen some of these values, left on auto settings, push a 60-70% overvolt.

As Praz says, no one seems to know exactly what they do. I've never been able to get a straight answer from anyone with the authority to speak for any motherboard company about their precise function. Best info on hand comes from tweakers like Der8auer

Asus can we disable OC socket? For example I like VDrop during overclocking and keep LLC at minimum. Frying CPUs behind scenes was never pretty.


Blameless is there a web page with summary of all findings about OC sockets and what they do, or is all info hidden between 3000000 posts made by various people one various forums during 3 years?
post #2663 of 5782
Quote:
Originally Posted by Jpmboy View Post

Thanks Praz... so, you know of at least one user that is testing the effect of long term higher mystery voltages on BWE *as i check my ITP* redface.gif
IS there a really significant jump in going from 3200 to 3400 on BWE? lol - maybe this is why my package temp is always 40C or higher?
I've been running 3390 as my 24/7 for a couple of weeks now, so far no problems, knock on silicon ... thumb.gif

But, it may be slow degradation ...
post #2664 of 5782
Quote:
Originally Posted by djgar View Post

I've been running 3390 as my 24/7 for a couple of weeks now, so far no problems, knock on silicon ... thumb.gif

But, it may be slow degradation ...

none yet, and this rig has been at 3400c13 with 1.45V VDIMM, 3.8 cache with 1.33V since the day I first switched it on... but hey, what's the worst that could happen? Cooked CPU? redface.gif
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post #2665 of 5782
Thread Starter 
Quote:
Originally Posted by Jpmboy View Post

none yet, and this rig has been at 3400c13 with 1.45V VDIMM, 3.8 cache with 1.33V since the day I first switched it on... but hey, what's the worst that could happen? Cooked CPU? redface.gif

In the grand scheme of things it's totally down to the user. Cooked CPU would be more ideal, rather than imperceptive stability issues that might occur a few months, or in a year (or not) from now which is more of an annoyance than it is any kind of disaster.

I wasn't aware until recently, and simply took the mindset that 3200 is more than adequate enough given how it is possible to run the timings on these CPU, and keeping the OC socket volts at a slightly less disconcerting level. These are all valid reasons why 3200 is the go-to ratio, but not necessarily the fastest one possible.

That's not to say it's mutually exclusive, nobody knows the long term effects above or below the speeds in question. That's probably the best take away from this, you're not going to get a definitive answer, so best not to dwell on it and do what you must lol
post #2666 of 5782
Quote:
Originally Posted by Silent Scone View Post

In the grand scheme of things it's totally down to the user. Cooked CPU would be more ideal, rather than imperceptive stability issues that might occur a few months, or in a year (or not) from now which is more of an annoyance than it is any kind of disaster.

I wasn't aware until recently, and simply took the mindset that 3200 is more than adequate enough given how it is possible to run the timings on these CPU, and keeping the OC socket volts at a slightly less disconcerting level. These are all valid reasons why 3200 is the go-to ratio, but not necessarily the fastest one possible.

That's not to say it's mutually exclusive, nobody knows the long term effects above or below the speeds in question. That's probably the best take away from this, you're not going to get a definitive answer, so best not to dwell on it and do what you must lol

lol ... "This is how deep the river is, General."
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post #2667 of 5782
Quote:
Originally Posted by Raghar View Post

Asus can we disable OC socket? For example I like VDrop during overclocking and keep LLC at minimum. Frying CPUs behind scenes was never pretty.

Hello

As Intel is now altering these same circuits in conjunction with overclocking when using a Broadwell-E if behind the scenes adjustments are a concern don't overclock or do so moderately.
post #2668 of 5782
Since I went to all the trouble, I might as well make it official.

stargate125645---i7-5930K @ 4.6/4.4---4x8GB 3200Mhz-C13-15-13-33-1T---1.40v---SA 1.088v---Stressapptest---2 Hours


Additional information:
Strap of 100
Vcore = 1.23V
Vcache = 1.20V
VCCIN = 1.936V
VCCIO = 1.08125V

I couldn't get any timing combination to work without the second timing at at least 15.

I may mess with tREFI or tRFC next.
Edited by stargate125645 - 8/28/16 at 7:26pm
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post #2669 of 5782
And for the other settings I mentioned previously...

stargate125645---i7-5930K @ 4.625/4.375---4x8GB 3333Mhz C14-16-14-34-1T---1.40v---SA 1.088v---Stressapptest---2 Hours


Additional information:
Strap of 125
Vcore = 1.26V
Vcache = 1.20V
VCCIN = 1.936V
VCCIO = 1.08125V
Edited by stargate125645 - 8/31/16 at 7:28am
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post #2670 of 5782
Here's my current 24x7, tamer than before but I guess still in the unknown degradation zone ... no need to register, Scone thumb.gif

4587 CPU Strap 100 BCLK 99.7 46x
3690 Cache 37x NB mult
1.385 VCORE adap turbo
1.28 VCACHE @ .320 - offset
1.20 VCCSA @ .210 offset
1.41 VDIMM
1.96 VINPUT / LLC +8
1.15 VCCIO CPU
.750 VTTDR
Phase Control CPU opt / DRAM - std
CPU current 140% / DRAM Current 130%
Warning: Spoiler! (Click to show)

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