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Haswell Overclocking Guide [With Statistics] - Page 170

post #1691 of 19540
Quote:
Originally Posted by The Storm View Post

One thing I have noticed with these chips is that they have a very distinct WALL that they hit, as with most chips are the same. It seems like the wall is very abrupt and no matter the amount of tweaking it doesn't really get you any further. I can game at 4.5 but it takes big voltage jumps between 4.4 and 4.6 but 4.7 no matter what I do, I cannot do anything other than maybe web browse, and that's with voltages all the way up to 1.46v. I am not delided and don't really think that this chip is even worthy of it, I will just hold out and maybe future batches will be better, then I will just sell this one off and hope for a better one later. So for the guys and gals out there banging there heads against the wall trying to push there chip a little further and it just wont do it, don't worry your not alone.

These chips are very random. Mine on the other hand seems to have no wall and the voltage scales exactly the same as clocks increase. 4.5GHz 1.25 -> 4.6 1.3 -> 4.7 1.35 and probably 4.8 at 1.4 (all 6hrs P95 blend stable), and it boots at 5ghz at 1.4v. L312 batch seems to be a good batch so if you can get your hand on one of these go ahead! thumb.gif Also once you get around 4.7ghz or needing higher vcore you need to do a lot more tweaking then just vcore. I also thought I hit a wall on my 4.7ghz 1.35 oc, but I started tweaking the VRIN and VRing, and the memory related voltages (the ones with an offset) and I made go from 3hrs prime stable to 6hrs.
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post #1692 of 19540
What CPU voltages, are people getting at 4GHz on the 4670k CPU?

It seems that overclock is too small, for anyone to bother lol.
Would be nice to find 5-6 others at 4GHz and compare the volts, so you have an idea at which range to adjust it.

But most people in all these oc categories, starts to talk from 4.4Ghz and above.
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post #1693 of 19540
For a 4ghz OC, you gotta pull down VRIN a lot for best volts. I dunno about exact vcores but 1v vcore wouldn't surprise me with whatever low VRIN you can get, i didn't experiment with it below 1.6 but you want to leash it to vcore for best results (less = better for low vcore, more = better for high, don't want too much or too little)

There's not much reason to run that low OC and undervolt though, i benchmarked sc2 for an hour (1 core full load, one core ~50%, two idle) and my hottest core at 1.15vcore was 53c
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post #1694 of 19540
Quote:
Originally Posted by wendigo4700 View Post

What CPU voltages, are people getting at 4GHz on the 4670k CPU?

It seems that overclock is too small, for anyone to bother lol.
Would be nice to find 5-6 others at 4GHz and compare the volts, so you have an idea at which range to adjust it.

But most people in all these oc categories, starts to talk from 4.4Ghz and above.

Probably at stock volts.
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post #1695 of 19540
Stock volts for me is ~1.13 on the desktop and as high as 1.15-1.2v with some stress.. my chip will do 4.4 at those kinds of voltages and 4.0 is a massive amount easier

You wanna go for 4.0? I'd say just set 1.1vcore, 1.6vrin and then drop vcore from there if it still works
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post #1696 of 19540
Why do the CPU vcore raise up under stressing?

If I set it to 1.2 (just an example) that should be the highest I wanted it to see. I think I would jump off my chair if I saw the CPU vcore increased further on its own when gaming or doing stress-test.

Also, what is default volt for that VRIN thing? The online manual does not cover it.
Edited by wendigo4700 - 9/2/13 at 8:33am
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post #1697 of 19540
Quote:
Originally Posted by Bartouille View Post

These chips are very random. Mine on the other hand seems to have no wall and the voltage scales exactly the same as clocks increase. 4.5GHz 1.25 -> 4.6 1.3 -> 4.7 1.35 and probably 4.8 at 1.4 (all 6hrs P95 blend stable), and it boots at 5ghz at 1.4v. L312 batch seems to be a good batch so if you can get your hand on one of these go ahead! thumb.gif Also once you get around 4.7ghz or needing higher vcore you need to do a lot more tweaking then just vcore. I also thought I hit a wall on my 4.7ghz 1.35 oc, but I started tweaking the VRIN and VRing, and the memory related voltages (the ones with an offset) and I made go from 3hrs prime stable to 6hrs.

what is ur setting?

I got L312 batch also. my batch number is L312B345.
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post #1698 of 19540
Quote:
Originally Posted by rickyman0319 View Post

what is ur setting?

I got L312 batch also. my batch number is L312B345.

Internal graphics: DISABLED
CPU Multiplier: 47x
Uncore Multiplier: 42x
vRIN: 1.86v (0.5 higher than vCore)
vCore: 1.36v (more toward 1.368-1.380v) - usually I run 1.35v, which is my 6hrs P95 blend stable clock, but I needed more stability recently so I bumped it by 0.01v, gaming stable at around 1.33v.
vRing: 1.15v
System agent, CPU IO Analog and Digital: +0.01v
LLC: Extreme
Memory running XMP profile @ 2133MHz 9-11-11-31 at 1.6v

rest is default
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post #1699 of 19540
Quote:
Originally Posted by wendigo4700 View Post

Why do the CPU vcore raise up under stressing?

If I set it to 1.2 (just an example) that should be the highest I wanted it to see. I think I would jump off my chair if I saw the CPU vcore increased further on its own when gaming or doing stress-test.

Also, what is default volt for that VRIN thing? The online manual does not cover it.

IVR gives it a touch more under stress. Usually like +0.01 or +0.02 according to software (software only measures it in 0.008v intervals like 1.256, 1.264 etc and doesn't show between) but not sure what it is if you actually measure it

Default VRIN is 1.8 without LLC. It's high, though.
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post #1700 of 19540
So setting VRIN to 1.6v straight off, on the 4670k to achieve 100*40 = 4GHz, is recommended?

LLC = Load Line Calibration?
If yes, I'll set that to its highest setting
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