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Haswell Overclocking Guide [With Statistics] - Page 626

post #6251 of 19540
Not unless the changes you made we're so extreme that they caused degradation of your chip.

If it was stable before you tweaked it, it would still be stable if you undid the tweaks
post #6252 of 19540
No.

If stuff is auto though, then maybe. That's why i measure and manually set a massive list of stuff
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post #6253 of 19540
OK thanks guys
post #6254 of 19540
Quote:
Originally Posted by Darkwizzieย View Post
ย 

I hope you understand this: By default, when I reply it is to try to help. Whether I succeed in doing that or not, is dependent on the other person. But we have a shared interest, and I'm volunteering time to maintain, update the guide/chart and read every single post in this entire thread. It takes time and I wouldn't be doing this so I can go off on random people.

ย 

I found your initial and reply to my response to your initial reponse to be somewhat snide. That annoys me because I'm doing this in the spirit of getting everybody better overclocks through better informed decisions. If you think I have no idea what you're talking about, the best way would be to spell it out step by step to me. Comments like, why don't you get it, others did, won't help and only serves to annoy me further. I'm telling you the way I saw things regardless of your actual intentions

ย 

Now, about temps: I'm a believer in that each person should decide what temps they are comfortable with. My normal load includes chess, which in temps is like perpetual video rendering, which is why temps are a bit higher. But some people have higher tolerances for risk and higher tolerance to complete CPU meltdown. Some of us can't afford another and some of us could. A small minorityย throw away CPUs like it's a candy wrapper. If by cold case you're referring you general case airflow temperature, with air cooling, the air isn't really changed much by CPU load. The thermal transfer isn't the best, the CPU heatsink gets lukewarm, so the air doesn't really heat up all that much. I find my GPU to be a larger factor. The poor thermal transfer makes sense, this is why people delid, no?

ย 

While you might know 20% is for some applications, for the sake of random people passing by, please specify that it's 20% for these hyperthreaded applications. If it is true that somebody who writes this guide can get mislead by reading that, imagine if I'm brand new to this... I'd think i5 vs i5 would be 20% faster based on a skim.

ย 

The request to see i7 vs i7, Haswell vs Sandy with Sandy being 20% slower isn't just a challenge, I actually want to see it even if I'm wrong. You have to understand, people sometimes run into the guide and make random, unfounded claims. One randomย guy actually came here to troll by spilling BS all over. I have to maintain some level of skepticism, and even if I take what others say on face value, others won't nessesarily believe me if I don't cough up some charts. And I'm not in the position to test both i7s.

ย 

Benefits were not just in hyper-threaded situations, and it's not just "some" programs, it's actually a fair majority (clarifying because I don't want anyone to think I claimed a 20% increase over a small handful of minority programs). I hope you understand that coming at a question with the perspective of "you are a beginner and I will help you because you are too dumb to know the difference between two processors you own" can really get you off on the wrong foot with people, particularly those who were not looking for an elementary definition on the differences between the hardware. It was,ย rather, a personal account of how those who are heavy OCers in the thread view Haswell, and if they personally regret it, due to others writing it off for the same reasons you answered my question with (reasons I had inferred in one of my posts).

ย 

I also hope you understand why I'm not linking to the individual pages here, but these were my sources:

http://www.guru3d.com/articles_pages/core_i7_4770k_review,1.html | Fry Render x64 (17%), Cinebench 11.5 (25.6%), Espresso (18% faster), Handbrake (22%), 3DMark (12%), 3DMark Vantage (16.6%), Mandel Fractal Calculation (10.5%), CPU Z-Lib (15.4%), Queen Math (12%), SHA Hashing (41.7%)ย 19% average increase

http://www.anandtech.com/show/7003/the-haswell-review-intel-core-i74770k-i54560k-tested | Cinebench Single Thread (15%), Cinebench Multi-Thread (30%), POV Ray (23%), 7-Zip Single Thread (7%), 7-Zip Multi-Thread (9%), PCMark 7 (26.7%), x264 HD 1 (15.8%), X264 HD 2 (22%), TrueCrypt AES (25.7%), Visual Studio (18% faster)ย 19.22% average increase

ย 

And this is excluding the fact that they were benching the 2700k and not the 2600k, which is what I upgraded from.


Edited by whiteironknuckle - 11/30/13 at 10:54am
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post #6255 of 19540
Quote:
Originally Posted by JackNaylorPEย View Post

Necroscan link I posted **was** from Asus RoG Site

http://rog.asus.com/forum/showthread.php?40057-RealBench-v2.0-Public-Beta!-amp-Leaderboard&country=&status=

Have to define worth ......

1. If goal is to get a certain level of system performance and say "Hey I overclocked my CPU from 3.5 to 4.8 GHz", then ya better off with SB

2. If goal is to get a higher level of system performance than above but only be able to say "I overclocked my CPU from 3.5 to 4.6 GHz", then ya better off with HW

While SB overclocks 3-4% better than HW, HW starts out about 10%-12 faster outta the box so SB never can quite catch up.
The rise is exponential .... this was my experience


Core Speed - VID - Highest Core Temp (* meas all settings on auto ... ONLY 1 change = CPU multiplier ..... all rest onl;y other change was "adaptive))
3.5 GHz - 1.248 - 56*
4.0 GHz - 1.216 - 55*
4.2 Ghz - 1.152 - 55*
4.4 GHz - 1.292 - 64
4.5 Ghz - 1.328 - 68
4.6 Ghz - 1.380 - 74

So my voltage and temps actually dropped from stock setting to 4.2 GHz but then went up 9C with a VID increase from 1.15 to 1.29 ..... as was noted in JJs overclocking video, voltage req'ts and temps rise much faster in Haswell than the did in previous generations
My 1st OC attempt was at 4.6Ghz on the 2600k .... was at 4.8 Ghz and been running 24/7 in SLI box since "birth" smile.gif

For 5.0 .... all I did was turn off Hyperthreading and bump LLC to high to keep heat below 75C (on air)


As for the SB / HW compression ....covered in detail in JJ's overclocking video on youtube. Quite clear that HW does not OC as well as SB.... as for the difference in performance..... anandtech's CPU bench sows a 10-12% difference in performance outta the box".

Yeah, I know.. I already got it lol. Someone was saying (sorry, can't remember who frown.gif) it's only a beta. I was just replying to that comment smile.gif
post #6256 of 19540
Quote:
Originally Posted by Menphistoย View Post

Can it happen that, when i have a fully stable oc and want to test another OC and change the stable settings(for testing other setting) and change it back to the stable settings ,that this settings are not stable any longer...


...i know...confusing...

Let's just trade chips. You can work on mine and I'll work on yours smile.gif I'll get it stable for ya.. thumb.gif
post #6257 of 19540
Quote:
Originally Posted by Scotty Macย View Post

Yeah, I know.. I already got it lol. Someone was saying (sorry, can't remember who frown.gif) it's only a beta. I was just replying to that comment smile.gif

Heck....Windows 7 is still a beta smile.gif .....

I'm older enough to remember the old IT Mantra ..... "The MS Windows Beta Period ends after the release of SP3"

Over half my utilities are either classified as Beta or Version 0.xx
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post #6258 of 19540
Quote:
Originally Posted by JackNaylorPEย View Post

Heck....Windows 7 is still a beta smile.gif .....

I'm older enough to remember the old IT Mantra ..... "The MS Windows Beta Period ends after the release of SP3"

Over half my utilities are either classified as Beta or Version 0.xx

In that case, Windows 7 will stay a Beta, since they're not going to be making any more SPs for it.....
post #6259 of 19540
Quote:
Originally Posted by fleetfeatherย View Post

i find it really interesting that you guys claim you have a lot of issues with strange instabilities from unknown sources. My chip acted as all chips of previous generations have

BSOD 124's, rectified through bumping vcore.

There are some oddities. On lower multipliers, I'd say up to x45 it behaves normally. Up the vcore and you're pretty much guaranteed to get it working if you can keep the temps under control. But beyond that and I guess it depends on the chip also, it doesn't behave that way anymore. When I try my suicide runs due to temps @ x47 etc, it's very hard to find stability.

For example I only start getting BSOD 101 when I start going for x46 or higher.

I've had SB and Ivy, both could be stabilities fairly easily with just vcore tuning. I had my SB running @ x49 and 1.54v no problems, I didn't have good luck with that chip but it ran cool. I had a fairly good Ivy which also ran cool and beat the SB @ lower clock, but I was dumb and tried to de-lid and broke it (well it's dual channel memory). Now I have a piss-poor Haswell and it's barely matching Ivy when I had it running @ peak.
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post #6260 of 19540
This really is a pacy thread packed with excellent advice and suggestions. I've just built a secondary i5 4670k system and so far I'm stable with 4.3ghz @1.15 vcore, default all other settings and ddr3 2133 @11-11-11-30-2t. Temps max out 60c (non avx prime95 27.9)with corsair h50. Will push it harder with a better cooler (possibly a refurbished h100 from Scan).
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