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Haswell Overclocking Guide [With Statistics] - Page 1662

post #16611 of 19540
Is anyone using a asrock exy 6 z87 board with a 4770k on air getting a decent oc running into temp issues on only 1.2v input
post #16612 of 19540
Quote:
Originally Posted by Cyro999 View Post

Drop 100mhz. 124 is almost certainly core or uncore lacking voltage. If it's that hard of a failure, you should definitely work up from being 100mhz lower

As i said earlier it has been running fine on a 43 multiplier its once i try and bump it up to 44

To the other guy i have the worst 4690k ever or i am just a noob at ocing
post #16613 of 19540
Quote:
Originally Posted by gap30 View Post

As i said earlier it has been running fine on a 43 multiplier its once i try and bump it up to 44

To the other guy i have the worst 4690k ever or i am just a noob at ocing
its probably the cpu. Like i said though 4690k is beast for gaming anyways. Dial in the 4.4, or 4.3 and play some games.
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post #16614 of 19540
Quote:
Originally Posted by Wirerat View Post

its probably the cpu. Like i said though 4690k is beast for gaming anyways. Dial in the 4.4, or 4.3 and play some games.

So bloody frustrating that i cant get it pat 4.3 and i just upgraded the cooler to noctua nh-d15 could have kept cm hyper evo
post #16615 of 19540
Quote:
Originally Posted by gap30 View Post

So bloody frustrating that i cant get it pat 4.3 and i just upgraded the cooler to noctua nh-d15 could have kept cm hyper evo

If you're 100% stable, then you go up 100mhz and suddenly can't boot i would be looking at uncore, RAM etc. Make sure they're at 33x, 1333mhz RAM.. Add 0.06vcore (like 1.2 to 1.26 for example) and then try to boot with 100mhz increase. Set Input voltage 0.7 over vcore before you do that. It might not be stable, but it should BOOT. Since you have an NH-D15 and a 4690k (devil's canyon i5) you should be able to approach or even pass 1.4v if you felt like it.
Quote:
Originally Posted by Wirerat View Post

There will be absolutely no difference in 4.4 vs 4.5ghz outside of cpu benchmarks. Games will run the same.

Heck from stock to 4.4 doesnt make that much difference. In poorly threaded games it will be a decent impact but in newer games that scale across threads it will only be a few fps difference.

Well threaded games scale just as much as poorly threaded ones. You're making the scientifically unsound assumption that a well threaded game will be GPU bottlenecked so won't show as high % performance gains, which relies on several things being true that are not always true. The most well threaded, highly CPU demanding games show just as high gains as the poorly threaded, highly CPU demanding games. Crysis 3, for one example. Outside of a few rare examples too, even the well threaded games tend to be held back heavily by the strength of one thread with today's API's.

46 over 36 (stock 4core for one cpu that i forgot, 4670k?) should show a ~28% increase for a variety of CPU bound games/tasks.
Edited by Cyro999 - 1/10/15 at 10:58am
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post #16616 of 19540
Quote:
Originally Posted by gap30 View Post

So bloody frustrating that i cant get it pat 4.3 and i just upgraded the cooler to noctua nh-d15 could have kept cm hyper evo

I know the felling, bro sad-smiley-002.gif I had ordered a 212EVO , sent it back and got me a H80i for nearly 3x the price. Only a foolish one like myself to believe the Devil's Canyon promising promisses...

What core voltage are you aiming at? I wish I could stay under 1.3, but it's taking me 1.35 to get x45 out of this lazy chip.
post #16617 of 19540
Quote:
Originally Posted by 3dosh View Post

Hi guys
awesome thread it helped me out alot
I just want to know is 1.250v good for 4 ghz overclock on the uncore or should i try a lower voltage
I have my cpu at 4.4 ghz with vcore of 1.285 stable with aid 64 8 hours and x264 20 loops
Im overclocking the uncore because if i try to OC the core to 4.5 i need massive vcore voltage of 1.34+ v .
also do you know good thread that can help with RAM OC, i have 1333 hz Ram and i want to OC it to 1600+
thanks
I would not try and go higher for the uncore. 3-400 MHz below core seems to be the typical optimum. Any higher and you might have re-introduce trouble with your core stability. That's plenty of volts for it already too, and I would consider working towards lowering it if possible.
What is your input voltage and LLC setting? I'd suggest about 1.9V for that.

RAM overclocking is fiddly. If the timings are too tight for the speed/volts setting then it can sometimes fail to even boot to the BIOS, in my case leaving me with the task of taking the battery out of the motherboard, which involves removing 4 screws and the graphics card first. Better motherboards have buttons you can simply press to revert things.
RAM isn't like the CPU. Higher MHz isn't necessarily better because your effective speed is largely related to the MHz divided by the latency settings. Some people even get better results by lowering the MHz and just tightening the timings.
I also find that a lot of the information around on the net about RAM overclocking is very old, and not entirely applicable.
You also need a memory stick that you can reformat for booting and running memtest. Note that passing memtest doesn't guarantee stability as I've had plenty of times where that passed but the voltage need to be increased to be stable in the real-world.

I made my own spreadsheet for my RAM where I can enter the voltage and then it will tell me the timings that should be about right for each of the various speeds, and how much margin those settings might have. I also developed my own RAM speed testing console app to test real-world performance, as I wasn't happy with any overcomplicated specialised applications for this. Then I tried various speeds between 1333 and 2666 and found that 2200 worked best for me in the end.

I took my 1866MHz 9-10-9-27 up to 2200MHz 10-11-10-29 and got about an 8% speed increase overall according to my tests.
Better still, I didn't even have to increase the voltage at all!
Be aware though that increasing the frequency increases the power draw more than increasing the voltage does.

Which RAM kit do you have, and what are it's timings?

Try checking out the RAM overclocking forums.
    
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post #16618 of 19540
Quote:
Originally Posted by Cyro999 View Post

If you're 100% stable, then you go up 100mhz and suddenly can't boot i would be looking at uncore, RAM etc. Make sure they're at 33x, 1333mhz RAM.. Add 0.06vcore (like 1.2 to 1.26 for example) and then try to boot with 100mhz increase. Set Input voltage 0.7 over vcore before you do that. It might not be stable, but it should BOOT. Since you have an NH-D15 and a 4690k (devil's canyon i5) you should be able to approach or even pass 1.4v if you felt like it.
Well threaded games scale just as much as poorly threaded ones. You're making the scientifically unsound assumption that a well threaded game will be GPU bottlenecked so won't show as high % performance gains, which relies on several things being true that are not always true. The most well threaded, highly CPU demanding games show just as high gains as the poorly threaded, highly CPU demanding games. Crysis 3, for one example. Outside of a few rare examples too, even the well threaded games tend to be held back heavily by the strength of one thread with today's API's.

46 over 36 (stock 4core for one cpu that i forgot, 4670k?) should show a ~28% increase for a variety of CPU bound games/tasks.
http://www.ocaholic.ch/modules/smartsection/item.php?itemid=1061&page=6 crysis 3 on low details 1280 x 1080 (no gpu bottleneck) 3.4 vs 4.5 4670k shows a 13% delta.

I was unable to find any single gpu overclocking benchmarks on games that are multithreaded showing 28% gains. Bf4 shows much less gains than crysis even.

My wording specifically said in games that do scale across multiple threads. If its a single core maxed due to the api then thats not a game I was talking about obviously.

All i was saying was his 4.3ghz overclock would be fine for gaming.
Edited by Wirerat - 1/10/15 at 11:05pm
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post #16619 of 19540
Quote:
Originally Posted by PaycheckNZ View Post

I would not try and go higher for the uncore. 3-400 MHz below core seems to be the typical optimum. Any higher and you might have re-introduce trouble with your core stability. That's plenty of volts for it already too, and I would consider working towards lowering it if possible.
What is your input voltage and LLC setting? I'd suggest about 1.9V for that.

RAM overclocking is fiddly. If the timings are too tight for the speed/volts setting then it can sometimes fail to even boot to the BIOS, in my case leaving me with the task of taking the battery out of the motherboard, which involves removing 4 screws and the graphics card first. Better motherboards have buttons you can simply press to revert things.
RAM isn't like the CPU. Higher MHz isn't necessarily better because your effective speed is largely related to the MHz divided by the latency settings. Some people even get better results by lowering the MHz and just tightening the timings.
I also find that a lot of the information around on the net about RAM overclocking is very old, and not entirely applicable.
You also need a memory stick that you can reformat for booting and running memtest. Note that passing memtest doesn't guarantee stability as I've had plenty of times where that passed but the voltage need to be increased to be stable in the real-world.

I made my own spreadsheet for my RAM where I can enter the voltage and then it will tell me the timings that should be about right for each of the various speeds, and how much margin those settings might have. I also developed my own RAM speed testing console app to test real-world performance, as I wasn't happy with any overcomplicated specialised applications for this. Then I tried various speeds between 1333 and 2666 and found that 2200 worked best for me in the end.

I took my 1866MHz 9-10-9-27 up to 2200MHz 10-11-10-29 and got about an 8% speed increase overall according to my tests.
Better still, I didn't even have to increase the voltage at all!
Be aware though that increasing the frequency increases the power draw more than increasing the voltage does.

Which RAM kit do you have, and what are it's timings?

Try checking out the RAM overclocking forums.
I tried voltage of 1.240 on the uncore and crashed with x264 test, I have my input voltage at 1.85 and LLC at auto/level 8.
I overclocked my ram from 1333 hz 9-9-9-24 to 1800 hz 10-11-8-20 and i raised the voltage from 1.5 to 1.65. i did two passes with memtest and i also tested it with hyperpi and passed.
i think this is as far as my OC can go. I'm thinking of going 4.5 on the core but that well be hard, that do you think ?
Edited by 3dosh - 1/10/15 at 11:18pm
post #16620 of 19540
Quote:
Originally Posted by 3dosh View Post

I tried voltage of 1.240 on the uncore and crashed with x264 test, I have my input voltage at 1.85 and LLC at auto/level 8.
I overclocked my ram from 1333 hz 9-9-9-24 to 1800 hz 10-11-8-20 and i raised the voltage from 1.5 to 1.65. i did two passes with memtest and i also tested it with hyperpi and passed.
i think this is as far as my OC can go. I'm thinking of going 4.5 on the core but that well be hard, that do you think ?
i think you should put the ram back to 1333mhz until you settle on your core speed. Try to change 1 thing at a time. Starting with core. It simplifies what caused the bsod when testing that way.

You can simply move ram back later since you know its stable.

Try and stabize the current frequency before pushing higher. Move vcore to 1.270v set in bios and try x264 again.
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