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Old 21st December 2016, 8:25 AM   #16
paulos Thread Starter
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Yeah for the moment atleast air cooling is as far as i will take this, a mixture of lack of funds and the fact my Gtx1060 is now the bottle neck!
But when i get a chance to upgrade GPU il be looking at water cooling for all!

Thanks for the links/advise on what comes next Wraith.50

Update 4.8Ghz stable at 1.4v
passed Realbench at (63,64,63,60)'c still blown away by CLU's difference or i really did mount it horribly (applied to much TIM)
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Old 21st December 2016, 11:56 AM   #17
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That's quite an amazing chip you've got there, to be at 4.8, 1.4v and still be sub 65C on a low end air cooler puts it in the top 1% of chips easily. I wouldn't even bother with watercooling, in fact i'm jealous. Mine (6700K, delid, CLU) does 4.6 at 1.39v and 80 degrees after 1 hour of video encode, and that's under water. Granted 30 degree ambient, but still...

Makes me want to roll the dice and buy another one, surely I can't get a worse one.

CLU is pure liquid metal, a Gallium alloy that is liquid at room temp. Thermal transfer characteristics are far superior to any other type of TIM.
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Old 21st December 2016, 2:44 PM   #18
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4.4 on 1.200v 51'c max
4.5 on 1.230v 52'c max
4.6 on 1.250v 57'c max
4.7 on 1.310v 62'c max
4.8 on 1.380v 66'c max
4.9 on 1.450v 73'c max

Testing method for todays speeds (6 hours of just watching temps and changing voltage)
-Realbench handbrake test solo first
-Realbench benchmark
-IBT 100% 15mins
-Realbench stress test 15mins ( this seems to get the cpu the hottest by 2-3'c)

is it just voltage to Ghz that controls stability or is there a natural frequency of each and every chip to which the chip prefers certain speeds to certain voltages aka not stable at 4.8 on 1.350 but stable at 4.835 on 1.355.

when im not busy on my computer im going to run the 4.8 and 4.9 speeds for much longer on Realbench stress test just to make sure it can hold up!
Im thinking mabye there is a 5Ghz in there but at what voltage and temp i wonder! i may give it a crack if it can be had at 1.5v and under 82'c. not something i would actually use but for the "mum get the kodak" and can it be done on a hyper 212x would be cool to see.

intel does list max voltage 1.52v am i ok in thinking i am safe to try 1.5v ??
i wonder if my motherboard MSI pro carbon has enough power delivery to support such demand (8 power phase)...?

haha yeah i have read a fair amount of people being stuck at 4.4-4.5 even at 1.45v. i would be happy with 4.6 i was hoping to get that, but at the same time i invoked "the power of now" and told myself i would get lucky and here we are, at the same time i also said my delidding would be perfect but two scratch's says otherwise so who knows what is at work!. i hear kaby lake is the cpu to get 4.8-5ghz as a standard OC potentially, although somehow locked to windows 10 and above.
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Old 21st December 2016, 3:29 PM   #19
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Quote:
Originally Posted by maldotcom2 View Post
How did you manage a min of 7 degrees below ambient?

Edit: and why is realbench reporting a frequency of 800 MHz?
My min temp is always below ambient, when I first start my pc and then after the loop's water temperature has equalized, which usually takes about 30-40 mins then my min/idle temps are close to my ambient temp.

The frequency realbench shows at the top, is a snapshot of the system specs, that it gathers when you first start it up. Because I had my C-states on in the bios and my Windows power plan on balanced, the system is able to lower its frequency to 800mhz and it did so while realbench was collecting the specs and snapshot the cpu when the cores where at 800mhz.
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Old 21st December 2016, 3:32 PM   #20
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It would be reckless of me to recommend going much above 1.4v, but you seem aware of the risks so I'm willing to watch. A lot of people will shoot for a max OC and then wind it back to a more sensible 24/7 OC. At a certain point the voltage and heat required for another 100Mhz isn't worth it. Every CPU has a "sweet spot" before requiring significantly more voltage to go faster.

This has inspired me, I'm going to grab Realbench this arvo and see if it will pass any settings that I know are unstable on my 6700K.
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Old 21st December 2016, 4:19 PM   #21
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haha yeah i will probably go off and search more about others on 1.5v overclocks as messing something up now would not be worth it!

http://imgur.com/URixUiN thats a link to 4.9Ghz

when i collect more data my graph will show how the cpu responds to various oc's so far 4.6 is the sweet spot for voltage required from the jump from 4.5 to 4.6 is very minimal but before that and after that the voltage increase needed is large and increasing as the speed increases ( as expected ).

yeah let me know and il give them a crack, that being said this isnt a claimed p95 24hour stable OC simply a OC for my needs ( just to clarify for anyone who might read this post and mis-interpret what my overclocks mean).
I wonder if i could get the same OC's with less voltage by changing Baseclock and multi rather than just multi...
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Old 21st December 2016, 4:20 PM   #22
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Quote:
Originally Posted by paulos View Post
4.4 on 1.200v 51'c max
4.5 on 1.230v 52'c max
4.6 on 1.250v 57'c max
4.7 on 1.310v 62'c max
4.8 on 1.380v 66'c max
4.9 on 1.450v 73'c max

Testing method for todays speeds (6 hours of just watching temps and changing voltage)
-Realbench handbrake test solo first
-Realbench benchmark
-IBT 100% 15mins
-Realbench stress test 15mins ( this seems to get the cpu the hottest by 2-3'c)

is it just voltage to Ghz that controls stability or is there a natural frequency of each and every chip to which the chip prefers certain speeds to certain voltages aka not stable at 4.8 on 1.350 but stable at 4.835 on 1.355.

when im not busy on my computer im going to run the 4.8 and 4.9 speeds for much longer on Realbench stress test just to make sure it can hold up!
Im thinking mabye there is a 5Ghz in there but at what voltage and temp i wonder! i may give it a crack if it can be had at 1.5v and under 82'c. not something i would actually use but for the "mum get the kodak" and can it be done on a hyper 212x would be cool to see.

intel does list max voltage 1.52v am i ok in thinking i am safe to try 1.5v ??
i wonder if my motherboard MSI pro carbon has enough power delivery to support such demand (8 power phase)...?

haha yeah i have read a fair amount of people being stuck at 4.4-4.5 even at 1.45v. i would be happy with 4.6 i was hoping to get that, but at the same time i invoked "the power of now" and told myself i would get lucky and here we are, at the same time i also said my delidding would be perfect but two scratch's says otherwise so who knows what is at work!. i hear kaby lake is the cpu to get 4.8-5ghz as a standard OC potentially, although somehow locked to windows 10 and above.
Basically it comes down to having enough voltage for a given frequency, under maximum load that determines stability.

If you really want to see if your cpu is completely stable at a certain frequency and voltage, then test it under Prime95 V28.7 or higher.

This will generate a lot more load and heat, than what Realbench does, so first try it out at stock clocks and see what temps you get and then increase your overclock by 0.1ghz at a time, until you get to 85-90 degrees max temps, when running Prime95.

Another quick but good test of your overclock stability, under a lot of load, is Intel XTU Benchmark. This also places a lot more load and generates a lot more heat from your cpu, than Realbench does.

You may find that your overclock at a certain voltage, will pass Realbench, but fail in Prime95 or XTU Benchmark.
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Old 21st December 2016, 4:50 PM   #23
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Yes I was about to say that 90W consumption @ 4.7GHz is a very light benchmark. I reckon you'll bsod instantly on a "power virus" benchmark like AIDA64 FPU but it's so far beyond real world there's debate over whether it's a fair measure of stability (like furmark for gfx cards where all the manufacturers scare users off from using them and implement driver restrictions on normal use of the gpu in those utils)

Mine's ok so far does 45x at -50mV adaptive which settles to about 1.26V in most benchmarks but AIDA64 FPU stress test needs -25mV before it's stable. But not (yet) being delidded and being in a notebook it's thermally limited, 45x thermal throttles in AIDA64, so I run at 4.0 @ -150mV 24/7 with 4.4 @ -60mV via hotkeys using Throttlestop profiles when I want extra

e.g. what the tests consume on my notebook @ 4.4/-60mV:
wprime 1024M bench = 79-80W
AIDA64 FPU only >110W
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Old 22nd December 2016, 10:47 AM   #24
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I tried AIDA64 FPU only, on 4.8 and 4.9 ( just a quick 15mins each)
passed both fine, however max wattage was 105 and 115 respectively.
I did notice that my multiplier was changing from 46 to 49 ( for 4.9Ghz) temps didnt hit over 74, aida64 didnt report any cpu throttling. apart from reducing multi for power saving options all other stress tests and my games will keep the multi locked at what i set when under load, why the change now..? is it in correlation to a powerdraw safety feature? or a limitation of my motherboard mabye..?
so far both overclocks are very stable for games but at a max of 68watt draw at 90% cpu load i guess that is to be expected!
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Old 22nd December 2016, 3:17 PM   #25
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Download Handbrake and cue up a few hours worth of x264 video encodes. x265 might be even better.
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Old 23rd December 2016, 9:01 PM   #26
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FPU only AIDA64
for some reason my CPU is downclocking its self on this test at 4.8 or 4.9Ghz im not going over 75'c monitoring suggests no cpu throttling
i tried going from 1.380v to 1.400v for 4.8Ghz and it didnt change a thing

The cores do the following under FPU only load
4.8x1 4.5x3
4.8x1 4.5x2
4.8x3 4.5x1

4.9x3 1x4.5
4.9x2 4.5x2
and at one stage for 4.9Ghz all cores held 4.4Ghz and then didnt change off 4.4

what could this be?
-motherboard powerphase limited?
-psu not holding stable power under load mabye..? (casecom 800watt max)

also FPU only is showing 105watts and 117watts for 4.8 and 4.9Ghz ( does that sound like enough power drawn...?)

im trying to figure this out before i try and find 5Ghz
that being said in Realbench bench and stress, in x264( tweaktowns skylake tester) , IBT and games the Freq holds just fine.


and i also have the cryorig r1, so far only a few degree's diff not overly impressed possibly i will attempt other TIM's.
Cheers Guys (one day il be out of questions)
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Old 23rd December 2016, 11:28 PM   #27
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Quote:
Originally Posted by paulos View Post
FPU only AIDA64
for some reason my CPU is downclocking its self on this test at 4.8 or 4.9Ghz im not going over 75'c monitoring suggests no cpu throttling
i tried going from 1.380v to 1.400v for 4.8Ghz and it didnt change a thing

The cores do the following under FPU only load
4.8x1 4.5x3
4.8x1 4.5x2
4.8x3 4.5x1

4.9x3 1x4.5
4.9x2 4.5x2
and at one stage for 4.9Ghz all cores held 4.4Ghz and then didnt change off 4.4

what could this be?
-motherboard powerphase limited?
-psu not holding stable power under load mabye..? (casecom 800watt max)

also FPU only is showing 105watts and 117watts for 4.8 and 4.9Ghz ( does that sound like enough power drawn...?)

im trying to figure this out before i try and find 5Ghz
that being said in Realbench bench and stress, in x264( tweaktowns skylake tester) , IBT and games the Freq holds just fine.


and i also have the cryorig r1, so far only a few degree's diff not overly impressed possibly i will attempt other TIM's.
Cheers Guys (one day il be out of questions)
Can you try run Prime95 and see if it does the same thing with the cpu cores.

Also check that your CPU Core Current Limit is set to 255W, incase its current throttling the cores.
Also if you have the setting RSR (Reliability Stress Restrictor), make sure its disabled.

In regards to your aircooler, you are not going to see a huge difference in temps, even with a Noctua DH15 which is the best air cooler you can get.

You need to go to water cooling, if you want to achieve a substantial drop in cpu temperature.
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Old 25th December 2016, 3:09 PM   #28
paulos Thread Starter
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So i found my problem, the short/long duration power and some other function were set to auto in bios limiting my wattage draw to 117watts. once this was changed, 4.8 and 4.9 held stable on all cores on all tests
however as expected with an increase in wattage the temps also grew!
this explains my deceptively low temps for some of my tests using the Hyper212x ( or atleast any test that needed over 115watts).

4.9Ghz at 1.460v max temps (83,82,80,76) 2 hour AIDA64 FPU only at 127watts
P95(26.6 used this version on purpose), RealBench, passmark, x264(tweaktown edit) all came in with lower temps and wattage

that being said even with unlocked Wattage no Vcore increase was needed to keep the cores at a stable Freq!

i tried 5Ghz at 1.5v booted fine, ran Aida64 FPU only and it ran for 2mins before the program reported an error but no bluescreen with temps of 87'c. but realbench stress test caused bluescreen. im not willing to go over 1.5v so i wont bother to find a stable 5Ghz...yet

Just some comments:
5-8mins CPU settling in period (where the temp rises the efficiency goes down requiring more power which then increases temp further) so from my results atleast testing a safe working temp should only require 10-15min stress test. if any test makes it past this 10-15mins then it also passes at 2 hours (atleast for me) this is with the absolute lowest voltage i can acheive for a given Freq (as in a 0.005v drop for a given freq will not pass at this settling in point).
can i notice a difference from 4.8 to 4.9..? yes but at the cost of 12'c not worth it!
once again the best performance to temp and Vcore ratio is 4.7Ghz on 1.310v at full load under 64'c
all of my so called overclocking was still as basic as can be just changing Vcore and Freq everything else is set to Auto

Thanks again everyone for giving me the info i needed to be safe and improve temps ( aka CLU under delid, never a normal TIM)
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Old 25th December 2016, 7:06 PM   #29
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Glad you sorted out your power problem.

Out of interest, can you try running Intel XTU Benchmark, with your 4.9ghz and 1.46volts and see what temps you get and if it completes the benchmark successfully.

Is your 4.9ghz overclock, with your cache at 4.9ghz as well or still at 4ghz stock frequency ?

Last edited by wraith.50; 25th December 2016 at 7:09 PM.
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Old 25th December 2016, 9:33 PM   #30
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you got me! it failed at 1.460v on XTU
bumped it up to 1.480v to try and got a score of 1290marks at 73'c highest temp ( probably 26-28ish ambient )
another day il dial in what 4.9Ghz needs voltage wise for XTU as a lowest!

and cache Freq is stock 4Ghz, no point changing it if it doesnt affect games no..? ( apart from getting better test scores )
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