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*Official* Intel DDR4 24/7 Memory Stability Thread - Page 208

post #2071 of 5477
Thread Starter 
lol, was just seeing if I could get it stable! Better sticks would do it with less, but I was stuck with probably the least preferable 3866+ kit on the market from back when Z170 launched
post #2072 of 5477
you're gonna like that 6950X. 10 cores just lights things up. thumb.gif
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post #2073 of 5477
Just received the 3600c15 kit. First impressions say the secondaries are looooose haha. Having an issue getting it to run 1T. Needed 1.2vccio and 1.2SA while running 1.5V dram. Seems a bit high on dram just to use 1T. If I increase SA to 1.25 do you guys think I can back down on the dram voltage? Also is there a point in playing with boot voltages or eventual voltages on z170 or just use VCCIO, dram and SA?
post #2074 of 5477
Quote:
Originally Posted by Praz View Post

Quote:
Originally Posted by stargate125645 View Post

I'm not looking to get posted on the front page; only looking for guidance. In this case, I was following on my results with guidance offered previously.

Hello

Front page? I thought you were testing for ram stability.
OK, your post was vague so I wasn't sure to what you were referring.

So, to answer my other post, I can get away with lots of tight timings on AIDA64 for 5 hours, but if I run HCI MemTest (it is such a pain to close down and start up again when you tweak settings, so I dread its use), my timings will return to what I would expect (i.e. looser).
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post #2075 of 5477
Quote:
Originally Posted by stargate125645 View Post

[...] if I run HCI MemTest [...] my timings will return to what I would expect (i.e. looser).
That doesn't quite make sense, you mean if you run HCI, the test will fail with the tight timings used on Aida? That wouldn't surprise me, Aida is not what one should use to check RAM stability.
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post #2076 of 5477
After an excursion into 1.45v dimm territory, I finally was able to get a stable 3418 14-15-14-CR1 in adaptive (14-14-14 still a no-go with several GSAT errors. The problem is that it comes with lower cpu & uncore speed, so my previous 125 strap sitch was slightly better in AIDA benchmarks (I do multiple runs to analyze since they do vary instance to instance).

But I figured I might as well and see how far I could stretch that. 3400+ was no good, but I stretched the just-below-3400 to 3386 14-15-14-21-CR1 @ 80min GSAT, with 4571GHz cpu & 3810 uncore @ 4hr RealBench (I killed it - I needed sleep). In order to get that I had to crank up the vcore to 1.38v (it was often below that) with a .295 offset; dimms a moderate 1.39v eventual.


post #2077 of 5477
Quote:
Originally Posted by Kimir View Post

Quote:
Originally Posted by stargate125645 View Post

[...] if I run HCI MemTest [...] my timings will return to what I would expect (i.e. looser).
That doesn't quite make sense, you mean if you run HCI, the test will fail with the tight timings used on Aida? That wouldn't surprise me, Aida is not what one should use to check RAM stability.
That is exactly what I meant, though given I did not receive an error in AIDA64 in 5 hours of straight testing focused on the memory I wonder if it would be stable for games. MemTest is just a pain because of all the windows, and having to reset them if you get an error and need to tweak timings. I figured there wouldn't be much of a difference between the two, so I could focus on AIDA to get close to the final numbers, but it appears as though MemTest and AIDA are worlds apart from my preliminary runs with MemTest.

I have 14-14-14-34-1T 3200MHz vs. 17-18-18-36-1T 3333MHz it would seem at this point. Those latter timings are auto for 3333MHz, so I will hopefully be able to get down to 16-16-16-36 or so, but I'm not holding my breath. I imagine the 3200MHz speed would be faster with those tighter timings, right? Regarding the voltage I asked about earlier, should I be concerned about 1.45V constant use for this RAM (G.Skill F4-3200C14Q-32GTZ)?
Edited by stargate125645 - 7/18/16 at 12:08pm
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post #2078 of 5477
Thread Starter 
Quote:
Originally Posted by stargate125645 View Post

That is exactly what I meant, though given I did not receive an error in AIDA64 in 5 hours of straight testing focused on the memory I wonder if it would be stable for games. MemTest is just a pain because of all the windows, and having to reset them if you get an error and need to tweak timings. I figured there wouldn't be much of a difference between the two, so I could focus on AIDA to get close to the final numbers, but it appears as though MemTest and AIDA are worlds apart from my preliminary runs with MemTest.

I have 14-14-14-34-1T 3200MHz vs. 17-18-18-36-1T 3333MHz it would seem at this point. Those latter timings are auto for 3333MHz, so I will hopefully be able to get down to 16-16-16-36 or so, but I'm not holding my breath. I imagine the 3200MHz speed would be faster with those tighter timings, right? Regarding the voltage I asked about earlier, should I be concerned about 1.45V constant use for this RAM (G.Skill F4-3200C14Q-32GTZ)?

Nowhere in the OP does it say "HCI and establishing stability is barrels of fun, bring your children" wink.gif.

HCI with an instance per thread running is a stringent test of stability, but a realistic one also. AIDAs memory routines are not in the same league as you have discovered yourself
post #2079 of 5477
Quote:
Originally Posted by Silent Scone View Post

Quote:
Originally Posted by stargate125645 View Post

That is exactly what I meant, though given I did not receive an error in AIDA64 in 5 hours of straight testing focused on the memory I wonder if it would be stable for games. MemTest is just a pain because of all the windows, and having to reset them if you get an error and need to tweak timings. I figured there wouldn't be much of a difference between the two, so I could focus on AIDA to get close to the final numbers, but it appears as though MemTest and AIDA are worlds apart from my preliminary runs with MemTest.

I have 14-14-14-34-1T 3200MHz vs. 17-18-18-36-1T 3333MHz it would seem at this point. Those latter timings are auto for 3333MHz, so I will hopefully be able to get down to 16-16-16-36 or so, but I'm not holding my breath. I imagine the 3200MHz speed would be faster with those tighter timings, right? Regarding the voltage I asked about earlier, should I be concerned about 1.45V constant use for this RAM (G.Skill F4-3200C14Q-32GTZ)?

Nowhere in the OP does it say "HCI and establishing stability is barrels of fun, bring your children" wink.gif.

HCI with an instance per thread running is a stringent test of stability, but a realistic one also. AIDAs memory routines are not in the same league as you have discovered yourself
Any thoughts on my questions?

Also, it takes more than 1 instance per thread to fill 32GB to at least 95%...
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post #2080 of 5477
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Yes, this is where Google Stress App comes in, which is even more stringent. This is what I'd recommend.
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