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Haswell Overclocking Guide [With Statistics] - Page 701

post #7001 of 19539
Quote:
Originally Posted by brandon6199 View Post

Thanks... I'm just trying to follow Darkwizzie's first step:
He says to set it to stock multiplier manually. How do I know what the stock multiplier is?

The stock ring for your CPU is 35, but like I said, you might be better off setting it at 34 or 36, just to keep the Turbo from kicking in and boosting the multi to 39....
Quote:
Originally Posted by brandon6199 View Post

Also, what does he mean by:
This doesn't really make sense to me. Is uncore the same as ring bus?

On this, I believe that he was referring to the vRing/VCCIN/Input Voltage - you'd want to take that off of auto so it doesn't increase to some ridiculous level and feed a bunch of unnecessary power to your components.... cheers.gif
post #7002 of 19539
Quote:
Originally Posted by Darkwizzie View Post

1. I said reduction of uncore has almost no effect, not absolutely no effect. If we already say audience agree agreement means nothing, then why are we even discussing this point? This entire point is pointless.

You took objection to me pointing to JJ's explanation so you tell me .... I don't see anything wrong with peeps hearing various opinions and making their own decisions

I upgraded to latest BIOS today so I did some testing. First let me say that I'm unhappy with the new BIOS as at 4.6 GHz I climbed from 74 max core to 81 and from a instantaneous peak of 1.42 to 1.48 so.... I terminated testing at that point at 4.6 during the last test.....will investigate cause of change tomorrow and perhaps roll back to old BIOS.

Running then at 4.5 I tested with RoG Bench ....did one test to warm up the puter followed by three runs

Open CL test

At 39 cache ratio, I received scores of 63,941 in all tests
At 42 , I received scores of 63,941 in 2 tests and 67232 in the other (wrote it off as an error)
At 45 , I received scores of 63,941 in 1 tests and 67232 in 2 others (meybe it wasn't a fluke ? did note expect significant changes here)
At 46 Ghz and 42 cache got another 67232

There's a 5 % difference here but I don't know how to judge it's validity .... I only ran the test 3 times and only got two different numbers ....


Encoding

42 cache ratio was just less than 1 % faster than 39 .... and 45 only 0.5 % faster than 42 indicating that it was not much affected by cache ratio

Heavy Multitasking

39 and 42 scored almost identically and 45 scored just over 1.25% faster....


Image Editing

At 39, scores averaged 116,756
At 42, scores averaged 119,434, 2.29% higher
At 45, scores averaged 119,452, 2.31% higher
At 4.6 GHz / 39 cahe ration I scored 119,525 on the one test

So we see almost no change dropping by 3 from 45 to 42 (0.2%) ..... but when we go further, there starts to be an impact (2.3%).

So what can be drawn from this ? Well 1) different programs are affected in different ways by cache ratio 2) in the one instance, we saw no impact at all with a difference of 3.... but a 2.3% impact at > 3. An increase in core multiplier from 45 to 46 is a 2.2% increase ...

So I think that's JJs point .....If ya can get ~119,500 at 45 CPU Multi / 45 cache ratio or ya can get ~119,500 at 46 / 39 is the latter better ? In 2 outta the 4 instances in RoG Bench, I'd say yes ....the 3rd I have no idea as I don't understand the results and w/\the 4th it's up in the air. With this new BIOS I'm at 1.32v 73C at 45 / 45 .... 1.38v, 81C at 46 / 39. I'm sure I could do better with more time on both fronts, but remember most of the day this is a production box and file server and before I delve any further I need to see how other have been affected by this BIOS and whether Im gonna roll back...... not to mention I still haven't started the sleeving on this thing.
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post #7003 of 19539
I don't understand why we're still talking about this..

If you can run x45/x45 of course you'll take that over x45/x42 and you'll take that over x45/x39 etc.
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post #7004 of 19539
Thread Starter 
Quote:
Originally Posted by brandon6199 View Post


Thanks... I'm just trying to follow Darkwizzie's first step:
He says to set it to stock multiplier manually. How do I know what the stock multiplier is?

Also, what does he mean by:
This doesn't really make sense to me. Is uncore the same as ring bus?

The answers you seek are actually in the guide, just not where you were looking. It is listed on there that the stock uncore for 4670k/4770k are x34/35 respectively under '1:1 Cache Ratio' section. You don't need to stress out too much on making sure if it's 34 or 35. Either way is fine.

 

The very first step shows that: "1. Set Uncore (AKA Ring Bus) to core ratio to manual." That basically states that uncore is ring bus. The section later on also starts with: "About Ring Bus aka Uncore aka Cache Ratio Tweaking:" meaning those three are the same exact thing.


The info is all in there, it's just a little spread out.

Quote:
Originally Posted by error-id10t View Post

I don't understand why we're still talking about this..

If you can run x45/x45 of course you'll take that over x45/x42 and you'll take that over x45/x39 etc.

That makes sense unless you feel that 45/44 is superior to 46/42. 

Quote:
Originally Posted by jameyscott View Post

Has to happen at least once a week or it wouldn't be the haswell overclocking thread.

I think I'm overdue for another post with enlarged, bold text with spammed emoticons. Or another rage argument. Or both.

 

Quote:
Originally Posted by blaze2210 View Post

I could understand if anyone was bringing up any new points, but it's just the same dispute....Darkwizzie, you should just refer people to the 1st page or one of the many pages where this dispute has happened before.... biggrin.gif

I kind of want to say, agree with me or get out, but I don't think that's nessesarily the right way to go about it. At the same time I'm tired of addressing the same issue. And there are consequences for flat out ignoring it as well.


Edited by Darkwizzie - 12/17/13 at 9:54pm
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post #7005 of 19539
Quote:
Take Cinebench as an example, increase the Multi by 1 and you'll see ~20 point increase. Drop the uncore by 1 Multi and you'll see a reduction of 0.2% of overall score. So if the overall score was 1000 then x49/x49 would score better than x50/x34.

As someone who was trying to improve cine score for a while.. I got four points from +400mhz on uncore. 948 points @4.6ghz with 4.0, 952 points with 4.4, under half a percent for +400mhz. Worth taking (after core overclock is done.. i mean it's not like people would OC core and then leave uncore stock after lol, we just OC it afterwards), but my RAM was far far far more influential on cinebench and on sc2.

As for uncore testing results: It's really actually hard to test due to margin for error. I'll run a few tests.
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post #7006 of 19539
You're still not including the person you're quoting, at least I know it's me! wink.gif

In my example I said 0.2% increase per uncore multi, you're seeing 0.1% increase. That's fair enough and we're nit picking at the moment which leads to my point, wasting pages of pages on this topic is unnecessary. In XTU Bench it's even less, that program loves RAM speed.

Anyhow, if something good comes out of this cycle then that's great .. hopefully I won't come back with 3 pages of back and forth again with nothing conclusive shown that differs what was already known.
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post #7007 of 19539
Pumping 1.42v through my i7-4770k trying to get 46x stable with 35x uncore... and it's not happening. I do not wish to pump any more vcore through my chip for a 24/7 OC, even though I'm only hitting 60C full load with Prime95. Sad, isn't it?

I can get 45x stable at 1.36v, but 46x will take upwards of 1.42v, and who knows what 47x or 48x will take. :roll eyes:

Sadly, I spent lots of money on my custom loop only to find out that I'm not limited by the heat output, but rather the vcore that my chip needs, and I'm not willing to go past 1.43v for 24/7 use.

Guess 45x isn't that bad... but according to the charts, it looks like 90% of the people that were charted had better luck than I did. Well at least my GTX 780 Ti turned out to be a golden overclocker thumb.gif
Edited by brandon6199 - 12/17/13 at 11:01pm
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post #7008 of 19539
Quote:
Originally Posted by brandon6199 View Post

Pumping 1.42v through my i7-4770k trying to get 46x stable with 35x uncore... and it's not happening. I do not wish to pump any more vcore through my chip for a 24/7 OC, even though I'm only hitting 60C full load with Prime95. Sad, isn't it?

I can get 45x stable at 1.36v, but 46x will take upwards of 1.42v, and who knows what 47x or 48x will take. :roll eyes:

Sadly, I spent lots of money on my custom loop only to find out that I'm not limited by the heat output, but rather the vcore that my chip needs, and I'm not willing to go past 1.43v for 24/7 use.

Guess 45x isn't that bad... but according to the charts, it looks like 90% of the people that were charted had better luck than I did. Well at least my GTX 780 Ti turned out to be a golden overclocker thumb.gif

Try 1.425v for the vcore, it might just need a small boost. Also, what voltage are you using for the cache/uncore voltage? To make things easier, would you mind posting the full set of settings that you're using?
post #7009 of 19539
Quote:
Originally Posted by blaze2210 View Post

Try 1.425v for the vcore, it might just need a small boost. Also, what voltage are you using for the cache/uncore voltage? To make things easier, would you mind posting the full set of settings that you're using?

Voltage for cache/uncore is set to AUTO and my uncore multi is set at 35x.

Other than that, XMP is off, and I'm just upping the multiplier and voltage trying to get as high as I can. I haven't even played with the cache voltages or multi yet...
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post #7010 of 19539
@brandon6199
Think that could be that some of the 90 % of the People bought more then one CPU to get a decent one. Most People with a good Haswell CPU did so.
If I would have decent watercooling and get a bad Haswell CPU, first thing I woud do is sell it and get another one.
My first I5 was just doing 4.4 with 1.33 vcore. Got rid of it fast. sonic.gif
Edited by Alxx - 12/17/13 at 11:31pm
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