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post #18751 of 22525
Quote:
Originally Posted by elTRex View Post

Thanks you all for your answers.
I'm still a bit confuse about my installation.
In a few word, Without AVX I stabilize at 80°C (Prime95 26.6, OCCT LinPack, x264 16T), and reaching withing 5 minute 100°C with AVX (I didn't test again since i understand it could damage my CPU, it is just what i experimented yesterday).
What I don't know is if 80°C should be expected for those test using my CPU cooler (I think it is a good air cooler based on test i read before I bought it) or is something wrong cause i should expect lower temperature ?

I just tested an ARMA 3 session, my CPU usage is around 20% And I'm around 40-50 FPS (because I'm using a HD6770 graphic card i guess), and the temperature stabilize at 50°C.

I don't know if theses figures make sense for you or not ?

What is your Vcore under load?
post #18752 of 22525
Is the turbo auto-boosted voltage always indicative of the overclocking potential? Turbo load (4.4) voltage is 1.26v and non-turbo load voltage (4.0) is 1.1v. These seem high? Gigabyte gaming 7 is the MB.
post #18753 of 22525
Quote:
Originally Posted by Bradeh View Post

Is the turbo auto-boosted voltage always indicative of the overclocking potential? Turbo load (4.4) voltage is 1.26v and non-turbo load voltage (4.0) is 1.1v. These seem high? Gigabyte gaming 7 is the MB.

you must read completely the first post in this thread to find out your stock CPU VID.

Do you have a 4790k?
the potential is always there
Edited by AcMtyMx - 11/10/15 at 8:02pm
post #18754 of 22525
Quote:
Originally Posted by Bradeh View Post

Is the turbo auto-boosted voltage always indicative of the overclocking potential? Turbo load (4.4) voltage is 1.26v and non-turbo load voltage (4.0) is 1.1v. These seem high? Gigabyte gaming 7 is the MB.

No. Motherboard default values overcompensate to guarantee stability. You have to test your own chip with manual settings to find out what it can do.
post #18755 of 22525
Quote:
Originally Posted by Bradeh View Post

Is the turbo auto-boosted voltage always indicative of the overclocking potential? Turbo load (4.4) voltage is 1.26v and non-turbo load voltage (4.0) is 1.1v. These seem high? Gigabyte gaming 7 is the MB.

No, the turbo voltage is almost never indicative of the overclocking potential. The stock voltage at 4.0 GHz is sometimes indicative of the chip's o/c potential but this is not a definitive rule because it also depends from how this specific chip is scaling.
    
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post #18756 of 22525
Lolz at "working up to" a bench... Like your CPU will be out of breath if you ask it to work too hard right away?!
post #18757 of 22525
Hey guys, with weather getting cooler slowly, I decided to give another go at overclocking my 4790k. I had left it all summer at 4.6GHz at 1.275V because at my preferred (but admittedly higher than I'm comfortable with sometimes) 4.7GHz/1.315V it was overheating, sort of. The H110 from Corsair isn't the greatest of coolers it seems. But I digress.

Now, first off, either I don't remember correctly and 1.315V was semi-stable or something is wrong-ish. I tried stress testing with OCCT with the aforementioned overclock and my cache set to 40x and 1.2V and my RAM at its default speed of 2133MHz CL11. It crashes, even at 1.32V. Which is strange, considering that I remember it being stable at 4.7GHz with 1.315V, cache at 4.4GHz at 1.23V and the memory at 2200MHz CL9 at 1.65V. I think it at least passed 1 or 2 hours of OCCT. Now, best I got was 20-something minutes at 1.32V. 1.315V is a mediocre to bad overclock as it is (Yeah yeah, I know, it's average. I don't like average, I wanted 5GHz 24/7 dammit! tongue.gif ) and having to go even higher with my voltage almost makes me want to give up and stick with 4.6GHz and call it a day. However, I don't like giving up, especially when my e-peen is at stake. By the way, 4.8GHz just isn't doable. I've crashed at 1.4V trying to get it benchmark stable, so I deem it impossible. I even tried with my cache at 36x and 1.125V, still no go.

Next thing was memory. I'd really love to hit 2400MHz stable. Like, 24/7 use stable. But I also really don't want to go over 1.65V (I kinda chicken out of it for no reason known to me, but I don't feel particularly confident with how many dead IMCs I've seen) and CL10. Like, really, 2200MHz CL9 should be faster than 2400MHz CL10. But 2400MHz > 2200MHz, so I don't care. If it needs CL11 though, I'm outta here. Thing is, 2400MHz CL10 seems unstable, even at 1.65V. It gave me one (ONE!) error during memtest86 (6 instances testing 2048MB each, 85-90% RAM usage) after 150% pass and 1+ hour, but nothing after that. Stranger even, I ran 4 hours of RealBench stress test last night (8GB RAM max, it won't do 16GB for some reason) and it passed, no problems there. Then, I proceeded to run a RealBench benchmark, and it crashed at the section where it shows the video of the guys overclocking on LN2. Like what the hell is going on? Thing is, without touching anything memory related, having my cores at 1.31 or 1.315V gave me too many errors during memtest86, while the above one error occured when I only raised my core voltage to 1.32V (And my system agent voltage, see below). So I'd say there's definitely something I'm missing here and every "problem" I'm experiencing is connected...

System agent voltage, I thought to myself. I entered my BIOS to see it offers just an offset and that the stock value was something like 0.81V. Unless it increases when under load or something, but I can't find it anywhere. I tried adding 0.1V and it improved my memory stability when I also incresed my core voltage to 1.32V. I just don't think it should behave so.

So, after saying I'm really sorry for this long and stupid post, my questions are:
- How do you think running my CPU at say 1.325V would affect longevity? My temps are under control most of the time, but I do get some spikes from time to time when load is applied suddenly. I think it has to do with waiting for the fans to ramp up, but I don't know. Usually these spikes end up in the 80-85C range, but most of the time it sits at something like 70-75C when gaming. Stress testing with OCCT will sometimes spike to 90C, but only on one or two cores and only momentarily. I also never use Prime95. Like, never.
- How high would you go with VCCSA (System agent voltage)? I've seen people recommending getting it to over 1.1V when overclocking memory, so I guess something like +0.3V for my system. That seems a little too much though, considering what the stock value is. Also, I think analog and digital IO voltages matter, but they also have only an offset option. Stock values are about 1.03V for both. How high should I get those? Again, I'm talking about 24/7 usage.
- Do you have any tips for getting my core stable at lower voltages? I mean, 1.32V isn't too extreme, but it's not low either. I'd prefer that my CPU does not die on me too soon. Lowering my cache ratio and voltage didn't seem to help too much with that. Maybe a little or maybe it was placebo and it was the same. Is there anything else I'm missing? 1.3V flat would be sweet. Hell, maybe I could even do 4.8GHz somehow. I know with 99% certainty that the answer is no, but I'm still hoping there's stuff I'm missing. I'm not exactly new to this stuff, but I'm not really hardcore either.
- Anything I should look out for with RAM overclocking? I know it's silly from a performance gained for the time and trouble I put in it, but it's all good fun. I'm first and foremost a hardware enthusiast and enjoy this kind of tinkering.

Thank you guys in advance for any replies, tips or insight. Sorry for the long and tiring post, but I've been sitting here collecting question marks in my head and I had to ask someone. I couldn't think of a better place. smile.gif
post #18758 of 22525
Quote:
Originally Posted by tolis626 View Post

Hey guys, with weather getting cooler slowly, I decided to give another go at overclocking my 4790k. I had left it all summer at 4.6GHz at 1.275V because at my preferred (but admittedly higher than I'm comfortable with sometimes) 4.7GHz/1.315V it was overheating, sort of. The H110 from Corsair isn't the greatest of coolers it seems. But I digress.

Now, first off, either I don't remember correctly and 1.315V was semi-stable or something is wrong-ish. I tried stress testing with OCCT with the aforementioned overclock and my cache set to 40x and 1.2V and my RAM at its default speed of 2133MHz CL11. It crashes, even at 1.32V. Which is strange, considering that I remember it being stable at 4.7GHz with 1.315V, cache at 4.4GHz at 1.23V and the memory at 2200MHz CL9 at 1.65V. I think it at least passed 1 or 2 hours of OCCT. Now, best I got was 20-something minutes at 1.32V. 1.315V is a mediocre to bad overclock as it is (Yeah yeah, I know, it's average. I don't like average, I wanted 5GHz 24/7 dammit! tongue.gif ) and having to go even higher with my voltage almost makes me want to give up and stick with 4.6GHz and call it a day. However, I don't like giving up, especially when my e-peen is at stake. By the way, 4.8GHz just isn't doable. I've crashed at 1.4V trying to get it benchmark stable, so I deem it impossible. I even tried with my cache at 36x and 1.125V, still no go.

Next thing was memory. I'd really love to hit 2400MHz stable. Like, 24/7 use stable. But I also really don't want to go over 1.65V (I kinda chicken out of it for no reason known to me, but I don't feel particularly confident with how many dead IMCs I've seen) and CL10. Like, really, 2200MHz CL9 should be faster than 2400MHz CL10. But 2400MHz > 2200MHz, so I don't care. If it needs CL11 though, I'm outta here. Thing is, 2400MHz CL10 seems unstable, even at 1.65V. It gave me one (ONE!) error during memtest86 (6 instances testing 2048MB each, 85-90% RAM usage) after 150% pass and 1+ hour, but nothing after that. Stranger even, I ran 4 hours of RealBench stress test last night (8GB RAM max, it won't do 16GB for some reason) and it passed, no problems there. Then, I proceeded to run a RealBench benchmark, and it crashed at the section where it shows the video of the guys overclocking on LN2. Like what the hell is going on? Thing is, without touching anything memory related, having my cores at 1.31 or 1.315V gave me too many errors during memtest86, while the above one error occured when I only raised my core voltage to 1.32V (And my system agent voltage, see below). So I'd say there's definitely something I'm missing here and every "problem" I'm experiencing is connected...

System agent voltage, I thought to myself. I entered my BIOS to see it offers just an offset and that the stock value was something like 0.81V. Unless it increases when under load or something, but I can't find it anywhere. I tried adding 0.1V and it improved my memory stability when I also incresed my core voltage to 1.32V. I just don't think it should behave so.

So, after saying I'm really sorry for this long and stupid post, my questions are:
- How do you think running my CPU at say 1.325V would affect longevity? My temps are under control most of the time, but I do get some spikes from time to time when load is applied suddenly. I think it has to do with waiting for the fans to ramp up, but I don't know. Usually these spikes end up in the 80-85C range, but most of the time it sits at something like 70-75C when gaming. Stress testing with OCCT will sometimes spike to 90C, but only on one or two cores and only momentarily. I also never use Prime95. Like, never.
- How high would you go with VCCSA (System agent voltage)? I've seen people recommending getting it to over 1.1V when overclocking memory, so I guess something like +0.3V for my system. That seems a little too much though, considering what the stock value is. Also, I think analog and digital IO voltages matter, but they also have only an offset option. Stock values are about 1.03V for both. How high should I get those? Again, I'm talking about 24/7 usage.
- Do you have any tips for getting my core stable at lower voltages? I mean, 1.32V isn't too extreme, but it's not low either. I'd prefer that my CPU does not die on me too soon. Lowering my cache ratio and voltage didn't seem to help too much with that. Maybe a little or maybe it was placebo and it was the same. Is there anything else I'm missing? 1.3V flat would be sweet. Hell, maybe I could even do 4.8GHz somehow. I know with 99% certainty that the answer is no, but I'm still hoping there's stuff I'm missing. I'm not exactly new to this stuff, but I'm not really hardcore either.
- Anything I should look out for with RAM overclocking? I know it's silly from a performance gained for the time and trouble I put in it, but it's all good fun. I'm first and foremost a hardware enthusiast and enjoy this kind of tinkering.

Thank you guys in advance for any replies, tips or insight. Sorry for the long and tiring post, but I've been sitting here collecting question marks in my head and I had to ask someone. I couldn't think of a better place. smile.gif



Well im not going to respond everything since i just wanted to comment on the cooling part smile.gif


The h110 is more than enough for cooling this chip. The issue is the Stress test used. I use game since those cpu cant transfer heat correctly. And i delided. Im using a h75 i cant make it go over 80c with 4.9ghz 1.375v on a small 120mm radiator.
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post #18759 of 22525
Quote:
Originally Posted by tolis626 View Post


....

The H110 from Corsair isn't the greatest of coolers it seems. But I digress.

...


.............
    
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Samsung 850 EVO 250 GB SanDisk Extreme Pro 240GB Samsung 840 PRO 128GB Plextor PX-128M5S 128GB 
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WD 1002FAEX 1TB Caviar BLACK (in enclosure) Noctua NH-D15S Corsair H110 2 x Noctua NF-A14 industrialPPC-2000/3000 PWM ... 
CoolingCoolingCoolingOS
Case Fan: 1 x Noctua NF-A14 PWM (rear, exhaust) Case Fan: Noctua NF-S12A PWM (front, intake) Case Fans: 2 x Noctua NF-S12A FLX (front, intake) Windows 10 Pro 64 bit 
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Windows 10 TP KDE Neon Developer Stable HP ZR2440w Dell U2311H 
KeyboardPowerCaseAudio
Microsoft Ergonomic keyboard 4000 Corsair AX760 (Platinum); EVGA SuperNova 750 G2 Corsair Air 540 Asus Xonar Essence STX II 
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post #18760 of 22525
Quote:
Originally Posted by tolis626 View Post

So, after saying I'm really sorry for this long and stupid post, my questions are:
- How do you think running my CPU at say 1.325V would affect longevity? My temps are under control most of the time, but I do get some spikes from time to time when load is applied suddenly. I think it has to do with waiting for the fans to ramp up, but I don't know. Usually these spikes end up in the 80-85C range, but most of the time it sits at something like 70-75C when gaming. Stress testing with OCCT will sometimes spike to 90C, but only on one or two cores and only momentarily. I also never use Prime95. Like, never.
- How high would you go with VCCSA (System agent voltage)? I've seen people recommending getting it to over 1.1V when overclocking memory, so I guess something like +0.3V for my system. That seems a little too much though, considering what the stock value is. Also, I think analog and digital IO voltages matter, but they also have only an offset option. Stock values are about 1.03V for both. How high should I get those? Again, I'm talking about 24/7 usage.
- Do you have any tips for getting my core stable at lower voltages? I mean, 1.32V isn't too extreme, but it's not low either. I'd prefer that my CPU does not die on me too soon. Lowering my cache ratio and voltage didn't seem to help too much with that. Maybe a little or maybe it was placebo and it was the same. Is there anything else I'm missing? 1.3V flat would be sweet. Hell, maybe I could even do 4.8GHz somehow. I know with 99% certainty that the answer is no, but I'm still hoping there's stuff I'm missing. I'm not exactly new to this stuff, but I'm not really hardcore either.
- Anything I should look out for with RAM overclocking? I know it's silly from a performance gained for the time and trouble I put in it, but it's all good fun. I'm first and foremost a hardware enthusiast and enjoy this kind of tinkering.

Thank you guys in advance for any replies, tips or insight. Sorry for the long and tiring post, but I've been sitting here collecting question marks in my head and I had to ask someone. I couldn't think of a better place. smile.gif

Quite the novel.

I like to leave mine at a voltage that stays under 85C while stressing with OCCT:Linpack for 30 min. 75C while gaming is a little high in my opinion. That being said. Its up to what you are comfortable with. Just remember the cooler any electronics stay over time, the longer they last. '

Lowering your uncore to 40x should be more stable, but not sure how much it'll help since you said you've already tried it.

Try really high/low input voltages. Some chips seem to be better at 1.55-1.65v at higher clocks, some need 1.9-2.0v.

Verify your motherboard settings here...Workshop: How to overclock Haswell processors

With RAM overclocking, I spent a few days monkeying with it only to discover my chips best scores were using XMP settings. Now I just buy ram at the clocks I want and use XMP profile to save time.

Edit: If your not using your H110 as intake, you could probably shave off 5-10C flipping the fans around (while gaming)
Edited by kl6mk6 - 11/11/15 at 10:57am
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