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Haswell Overclocking Guide [With Statistics] - Page 673

post #6721 of 19539
Quote:
Originally Posted by fleetfeather View Post

you don't "have" to set a manual VCCIN, but most people prefer to. Run aida64 cache stress test for a couple of hours and see if 4.0 @ 1.18v is stable. If it is, you can keep moving "Adjust Ring Ratio" higher (4.1 -> 4.2 -> 4.3 etc.). You can also increase "CPU Ring Voltage" to 1.20v, but i wouldn't go any higher than that personally.

so you recommend me changing the VCCIN is that voltage?? It booted up at 4.1ghz and I used Intel burn test temps never went over 66c biggrin.gif or do I gotta use Aida64 stress test each ghz?
post #6722 of 19539
Quote:
Originally Posted by NightHawk06 View Post

so you recommend me changing the VCCIN is that voltage?? It booted up at 4.1ghz and I used Intel burn test temps never went over 66c biggrin.gif or do I gotta use Aida64 stress test each ghz?

Do you have the program called HWInfo64 on your pc? I'd use that to see what Auto voltage is currently giving you before I made any recommendations to change VCCIN.

Use aida64 as follows:



Notice only the 'cache' test is ticked.
post #6723 of 19539
Quote:
Originally Posted by fleetfeather View Post

Quote:
Originally Posted by NightHawk06 View Post

Hey guys I have a problem I overclocked my haswell i5 4670k to 4.8ghz other day now i'm at 4.7ghz!! Anyway I was doing some overclocking on my Memory and came
across this NB Freq is at 3.8ghz why so?? I have the CPU Ratio at 4.7ghz 1.34v complete stable but shows here 3800mhz NB Freq that normal? I change it to 4.7 but wouldnt boot up so its at auto and Cpu ratio at 47

Have a MSI Z87 G45 motherboard

NB Frequency is the Cache frequency. It is related to the Core frequency, but they are not the same thing.
Wizzie has explained a bit about it in the guide, but the basics are as follows:

- Cache frequency has a default clock of 3.7ghz for 4670k chips
- In an ideal world, you would set the Cache frequency to the same frequency as your Core frequency (so, 4.7ghz in your case)
- To do this, you would more-than-likely need to increase Vring voltage (it is a voltage different to that of Vcore voltage)
- The max recommended Vring voltage is ~1.2v. It's default voltage hovers around 1.05v for most chips.
- Next-to-no chips are actually capable of holding a cache frequency identical to a high core frequency. (mine doesn't like going above 4.3ghz with recommended max voltages)
- The cache frequency has a absolute minimal impact on performance. You're loosing next-to-nothing by leaving it at default.
- The quickest way to test for cache frequency overclock stability is to run the Aida64 cache stress test (tick the cache stress test box and leave the rest blank). If you survive 4 hours, you'll be golden.

hope this helps

You are wrong as to say that maximum recommended Vring voltage is 1.2V.
Just take a look at the OC chart on the first page of the chart and see how many people are running Vring over 1.2V.

Nowhere has it been specified to stay below 1.2V for Vring.
post #6724 of 19539
Quote:
Originally Posted by rt123 View Post

You are wrong as to say that maximum recommended Vring voltage is 1.2V.
Just take a look at the OC chart on the first page of the chart and see how many people are running Vring over 1.2V.

Nowhere has it been specified to stay below 1.2V for Vring.

i have a ~ before the 1.2v. im stating 1.2v because i have no idea what his LLC settings are, thus i have no idea how far over 1.2v he might be shooting to his cache.
post #6725 of 19539
Quote:
Originally Posted by fleetfeather View Post

Do you have the program called HWInfo64 on your pc? I'd use that to see what Auto voltage is currently giving you before I made any recommendations to change VCCIN.

Use aida64 as follows:



Notice only the 'cache' test is ticked.

No but here what it shows right now on hwmonitor.. I'm at 4.2ghz ran intel burn test and it passed didnt crash so I go higher? if crash raise the cpu ring voltage to 1.20v? Do I test it same way your picture shows?? tick that 1 box leave other blank?

post #6726 of 19539
Quote:
Originally Posted by NightHawk06 View Post

No but here what it shows right now on hwmonitor.. I'm at 4.2ghz ran intel burn test and it passed didnt crash so I go higher? if crash raise the cpu ring voltage to 1.20v? Do I test it same way your picture shows?? tick that 1 box leave other blank?


Alright let's see. I would:

- change VCCIN from Auto to 1.84v (this should bring VCCIN up to about 1.872v in HWMonitor)
- change Ring Voltage from 1.18v to 1.20v (this should bring LLC/Ring voltage up to 1.23v in HWMonitor)

I don't use IBT so I have no idea how easily it finds instability in cache ratio. Yeah, I'd say keep the cache at 4.2 like you have it now and see how you go in Aida64 with the settings exactly as they are in the screenshot i posted (all boxes unticked except for "Stress cache")
post #6727 of 19539
Quote:
Originally Posted by fleetfeather View Post

Alright let's see. I would:

- change VCCIN from Auto to 1.84v (this should bring VCCIN up to about 1.872v in HWMonitor)
- change Ring Voltage from 1.18v to 1.20v (this should bring LLC/Ring voltage up to 1.23v in HWMonitor)

I don't use IBT so I have no idea how easily it finds instability in cache ratio. Yeah, I'd say keep the cache at 4.2 like you have it now and see how you go in Aida64 with the settings exactly as they are in the screenshot i posted (all boxes unticked except for "Stress cache")

okay here what it shows right now I change all that what you said and will do a stress test only check that 1 box you have screenshot?? I'm at 4.4ghz

post #6728 of 19539
Quote:
Originally Posted by NightHawk06 View Post

okay here what it shows right now I change all that what you said and will do a stress test only check that 1 box you have screenshot?? I'm at 4.4ghz


looks alright to me (VCCIN will probably move a bit higher once you put your cpu under load). yep stress test with only that 1 box checked.
post #6729 of 19539
Quote:
Originally Posted by fleetfeather View Post

looks alright to me (VCCIN will probably move a bit higher once you put your cpu under load). yep stress test with only that 1 box checked.

Is this gonna hurt my CPU doing all this lol?? Dont wanna click stress and watch it catch FIRE lol how long stress test can I do each ghz bout 1hr? till I crash?
post #6730 of 19539
Quote:
Originally Posted by NightHawk06 View Post

Is this gonna hurt my CPU doing all this lol?? Dont wanna click stress and watch it catch FIRE lol how long stress test can I do each ghz bout 1hr? till I crash?

It shouldn't hurt your cpu at all, especially if you've been running IBT already tongue.gif The "Stress cache" test produces fairly limited heat; when I run it with 1.28Vcore + 1.15Vring I reach 60C tongue.gif



yep, the test should fail within the first 1-2hours if it isn't stable
Edited by fleetfeather - 12/10/13 at 7:12pm
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