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The Gigabyte Z87/Haswell Overclocking(OC) Guide - Page 266

post #2651 of 3254
Quote:
Originally Posted by Ignoarints View Post

Hello, new to the forums but I've used the OP in this thread (along with two other guides) to help me with my first serious overclocking venture for a few weeks now.

I have an i5-4670k and a Gigabyte Z87x-UD4H mobo.

I delidded my cpu to great success with regards to heat reduction (~20 degrees). I've gotten it up to 4.7 GHz within reasonable temperatures but with what I am thinking are somewhat unreasonable vcores.

Currently I am completely stable at 1.35 vcore at 4.5 GHz. The tests I use (usually in this order) are P95 Blend briefly, XTU, IBT, P95 small FFT for a long time, AIDA 64 (combined and FPU separate). "Real" testing basically involves BF4 and Planetside 2. Temperatures are in the mid 70's maximum, 50-60 under non-synthetic full load use.

I know that vcore is technically within rough estimates, but after viewing charts of user submitted values it seems awfully high. But it gets worse with higher clock speeds. 4.6 GHz requires 1.40 vcore at minimum, and 4.7 GHz requires 1.45 or 1.46. I want to stay out of the 1.4's in general.

This is uncore multiplier set to 35 (the lowest I can go, setting it to 34 makes it run at 4.0 GHz uncore for some reason). For stability at lower vcore I've tried up to 1.3 cache voltage to no effect and up to 2.15 vrin (vrin has been important for stability but hasn't ever allowed me to lower my vcore, currently it is 1.90v). LLC is set to extreme, all C states are off for the purpose of overclocking until I'm done. I also messed with the PCH voltage just to see but it seemed to have no effect and is back to auto.

Basically I can live with 4.5 GHz as it's already blazing fast, and if it has to be at 1.35 vcore so be it. My temperatures seem very, very good at the vcores I have to run at so far. For example below is P95 blend on 1.45 vcore early on. IBT puts it solidly into the mid 80's, however all I have is a Thermaltake 2.0 Performer and not much else going on for cooling (old Antec 300 case, etc). So as far as temps go, I'm very pleased.



My main question I guess, is there anything else I should be doing here to get more GHz per vcore volt? Like I said I'm new to "serious" overclocking like this so I wouldn't be shocked if I forgot some obvious setting somewhere that's messing all this up.

Looks like you have most of it down, two things though:

You need cpu-z 1.64.0, not later, to show your actual vcore. Later versions display the VID sensor on many boards including this one, which is different from load vcore. Alternatively, hwinfo is a good program. It has a working sensor too - you need to scroll down to "Vcore" though, and not "core VID".

You might be able to cut down a little if you narrow down your stress testing, x264 and maybe prime custom only fft 1344-1344 should be able to get you stable or close enough to where you can make a slight adjustment like +0.01vcore and be good

Aside from that: Just silicon lottery. Your chip looks like ~100mhz below average
Edited by Cyro999 - 3/12/14 at 8:47am
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post #2652 of 3254
Quote:
Originally Posted by Cyro999 View Post

Looks like you have most of it down, two things though:

You need cpu-z 1.64.0, not later, to show your actual vcore. Later versions display the VID sensor on many boards including this one, which is different from load vcore. Alternatively, hwinfo is a good program. It has a working sensor too - you need to scroll down to "Vcore" though, and not "core VID".

You might be able to cut down a little if you narrow down your stress testing, x264 and maybe prime custom only fft 1344-1344 should be able to get you stable or close enough to where you can make a slight adjustment like +0.01vcore and be good

Aside from that: Just silicon lottery. Your chip looks like ~100mhz below average

Thanks, I had a feeling it might have been a "that's just how it is" situation. I didn't know that about cpu-z though. Before I was considering measuring the voltage with the contacts on the mobo (I'm assuming that is the most accurate measurement I can acquire?).

Since there isn't a whole lot I can do, is there a general consensus on longevity of a low 1.4 vcore? Temperatures don't seem to be an issue at that level but 1.4 volts seems incredibly high to me but I have virtually zero experience with newer Intel stuff.

Edit: And lets say my VID is 1.4, but my vcore is 1.36 (just making up numbers here). Is the vcore the number I should really be interested in or is VID as important?
Edited by Ignoarints - 3/12/14 at 9:00am
post #2653 of 3254
Quote:
Before I was considering measuring the voltage with the contacts on the mobo (I'm assuming that is the most accurate measurement I can acquire?).

Yea, most accurate. The sensor is very close though - you just need the actual sensor, not the VID that some stuff like newer cpu-z shows

You'd want actual voltage, not VID. VID is just a number, voltage is.. the actual voltage running through chip

Longevity for 1.4v.. If it's cool and being used for gaming etc, with delid and i5 (~10c cooler than i7 under 8thread load) i'd say honestly go for it. It's not the crazy stuffs, i've seen people running 1.47, 1.5, not only that but priming etc small fft on them. Long term data, there's not so much - you can ask in the haswell overclocking thread with statistics, but if you're willing to accept chance of having to raise volts a little or drop OC in the future to safer level, it should be fine, AFAIK. I wouldn't use it for 100% cpu load 24/7 for years, but actual gaming etc is far from that.

There's a rise of ~0.02v over what you set, though - so setting 1.38vcore in bios would give ~1.4 load. Given that, i would likely stick to your 4.5 which requires ~1.36-1.375
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post #2654 of 3254
Quote:
Originally Posted by Cyro999 View Post

Yea, most accurate. The sensor is very close though - you just need the actual sensor, not the VID that some stuff like newer cpu-z shows

You'd want actual voltage, not VID. VID is just a number, voltage is.. the actual voltage running through chip

Longevity for 1.4v.. If it's cool and being used for gaming etc, with delid and i5 (~10c cooler than i7 under 8thread load) i'd say honestly go for it. It's not the crazy stuffs, i've seen people running 1.47, 1.5, not only that but priming etc small fft on them. Long term data, there's not so much - you can ask in the haswell overclocking thread with statistics, but if you're willing to accept chance of having to raise volts a little or drop OC in the future to safer level, it should be fine, AFAIK. I wouldn't use it for 100% cpu load 24/7 for years, but actual gaming etc is far from that.

There's a rise of ~0.02v over what you set, though - so setting 1.38vcore in bios would give ~1.4 load. Given that, i would likely stick to your 4.5 which requires ~1.36-1.375

I know it's just a 100 mhz but I'd like to run at 4.6 for whatever reason. I hardly keep processors for more than a year or two anyways, but that was also with AMD usually which seems like it was easier on the sockets and reusing motherboards. I'll check what my vcore really is and go from there. My temps seem good even at 1.45/1.46 so I'll see if I can pull 4.6 GHz stable out of 1.40 or so flat. But thanks for answering the main question that was really what I didn't know (if there was anything else major I could do)

Also I won't mind being a long term 1.4 volt case study tongue.gif
post #2655 of 3254
Quote:
Originally Posted by Horsemama1956 View Post

Ring voltage seems low for 4.1Ghz uncore, no? I haven't noticed a difference between 34 and a higher setting. Try ditching adaptive and setting everything in stone.
Is your setup for gaming? Still with the 450? Stock would probably be fine tbh, unless you're doing something else.

Yeah my set up is for gaming and the normal stuff the 450 still works prety fine for now planing to buy gtx 760oc from gygabite no money for eng gmae stuff biggrin.gif

I managed to get 2 profiles stable for 8h 43x and 45x
Profile 1:multi x43, vcore 1.23, uncore x41, vring 1.18-1.2 (forgot coz i was testing 4.5 till now)
LLC extreme, Vin 1.9v (i am sure that i can drop it abit here with more testing), power saving:C3 enabled and turbo on auto.

Profile 2:multi x45, vcore 1.35 (1.33 work but for like 5h only), uncore x40, vring 1.2,
LLC extreme, Vin 2v (i don't think i can drop it coz that how i got stable on 1.35v), all power savings are auto only C3 enabled.
Now using the x45 to see how it works with some games.
And i am gonna buy new more powerful PSU would it efect the OC planng to buy a modular 750W Corsair PSU.

What you guys think biggrin.gif
post #2656 of 3254
Quote:
Originally Posted by cfcboy View Post

Stumbled across this excellent guide after having a bit of hassle with my 4670k.

I wonder if someone could help point me in the right direction with a couple of issues I seem to be getting out of my cpu?

Ok so the issue im having is micro stuttering in games, its pretty bad frown.gif Lets take Metro Last Night for example, quite an intensive system usage game but my fps breezes through at 120+ fps. But when something kicks off, like loud explosion or sudden big scene I will get a huge cpu lag spike for a millisecond. I get this in all my games including Tomb Raider, Far Cry 3, Thief, etc etc. In BF4 using mantle it goes through the roof, the yellow cpu spike (shown via the ingame perf graph) will hit and completely freeze my system for a split second. Obviously when your getting such high fps its quite disheartening to see all these darn stutters/spikes.

So my system is such:

Board: MSI Z87-G45
Bios: Version 1.7
VGA: Gigabyte R9 290 4GB
Intel Core i5-4670k@ Stock
MEM: Gskill 2x4gb
HDD: Samsung 840 256gb SSD
PSU: Novatech 750Watt Power Station V2 Black Edition 80 plus bronze
COOLER: Artic v7 rev 2
Windows 8.1

All latest drivers, gpu using 14.2 beta

Ive literally gone through everything i can think off until someone mentioned it could be some of the settings in bios. So I turned off my C-State and the stutter seems to have halved, good result so far! But im thinking there must be some otherthing holding this back like the voltage, speeds, ring or somekind of setting thats giving me these stutters and creating a bottlekneck which is causing these issues.

I did OC my cpu and seemed stable when running normal stuff but still got stutter:

Core - 4.4
Ratio - Dynamic
Ring - 4.1
XMP Enabled @ 9-9-9-9-24 1.5v
Dram - Link
Core Voltage Mode - Adaptive
Core Voltage - 1.180
Ring Mode - Adaptive
Ring Voltage - 1.100
VR eff - Disabled

Any advice on the settings that could help would be greatly appreciated. Ive been searching day in and day out and still not found a fix frown.gif

This has worked for people...

not sure if this is the exact tool I used but I think it is... check it before you download and maybe do some searching on overclock.net about it

http://www.coderbag.com/Programming-C/Disable-CPU-Core-Parking-Utility
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post #2657 of 3254
Quote:
Originally Posted by ludkoto View Post

I gues i will stick with 4.3ghz 1.23v i tried 4.5ghz few times got to 1.35 not stable and i gave up.
Maybe i will try latter when i get new PSU. I gues i got the worst i5 there is QQ

Oh, don't worry. My 4770K is actually worse, lol. I need about 1.25v for 4.2Ghz. It's actually by far the worst overclocking CPU in my OC history. And I am overclocking since Celeron 300A to 450Mhz times wink.gif . Man, that was some easy 50% overclock and all u needed was the stock cooler lmaosmiley.gif
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post #2658 of 3254
Quote:
Originally Posted by Cyro999 View Post

Yea, most accurate. The sensor is very close though - you just need the actual sensor, not the VID that some stuff like newer cpu-z shows

You'd want actual voltage, not VID. VID is just a number, voltage is.. the actual voltage running through chip

Longevity for 1.4v.. If it's cool and being used for gaming etc, with delid and i5 (~10c cooler than i7 under 8thread load) i'd say honestly go for it. It's not the crazy stuffs, i've seen people running 1.47, 1.5, not only that but priming etc small fft on them. Long term data, there's not so much - you can ask in the haswell overclocking thread with statistics, but if you're willing to accept chance of having to raise volts a little or drop OC in the future to safer level, it should be fine, AFAIK. I wouldn't use it for 100% cpu load 24/7 for years, but actual gaming etc is far from that.

There's a rise of ~0.02v over what you set, though - so setting 1.38vcore in bios would give ~1.4 load. Given that, i would likely stick to your 4.5 which requires ~1.36-1.375

I got it stable at 1.385 VID so far for 4.6, since you opened my eyes on what real vcore is now that I'm checking for it that comes out to 1.404 vcore under load. The next "step" up is 1.416, then 1.428 and I didn't want to be at either of those. If it ends up being truly stable under non synthetic use I'll probably keep this permanently. The good side of it, at least, is I can't break 80C under any type of testing I know of to create heat (P95 small fft, IBT, AIDA64 FPU only) and so far under full load for gaming I hit very low 60's max during a few hours.

I'll see how it goes
post #2659 of 3254
Quote:
Originally Posted by BrainSplatter View Post

Oh, don't worry. My 4770K is actually worse, lol. I need about 1.25v for 4.2Ghz. It's actually by far the worst overclocking CPU in my OC history. And I am overclocking since Celeron 300A to 450Mhz times wink.gif . Man, that was some easy 50% overclock and all u needed was the stock cooler lmaosmiley.gif

To tell you the truth 4.3ghz works best for me i am not aiming for some crazy OC just got interested in overcloacking since i got the i5 now gonna try how this 4.5ghz is thinking to try 4.7 just for the test to see how much vcore would i need i am guesing its over 1.4 but gonna try it this weekend biggrin.gif

I don't think i can lower volts on my 4.5 or atleast i am not sure how biggrin.gif
post #2660 of 3254
Quote:
Originally Posted by Ignoarints View Post

I got it stable at 1.385 VID so far for 4.6, since you opened my eyes on what real vcore is now that I'm checking for it that comes out to 1.404 vcore under load. The next "step" up is 1.416, then 1.428 and I didn't want to be at either of those. If it ends up being truly stable under non synthetic use I'll probably keep this permanently. The good side of it, at least, is I can't break 80C under any type of testing I know of to create heat (P95 small fft, IBT, AIDA64 FPU only) and so far under full load for gaming I hit very low 60's max during a few hours.

I'll see how it goes

Linpack is hotter, ~205gflops @4ghz. IBT "only" getting like 120 is super easy on the cpu in comparison

Also, the sensor only updates in those steps, like what you said. The voltage will change, so you can have 1.41v, it can just only display as 1.404 or 1.416 for example

Looks like good OC though! I've been sat back on 4.5 profile with HT at only 1.245vid, because 4.6-4.7 is just really awkward for me to get stable. Seems to want me to add like 0.08v to go to 4.6, which is really odd because i had some success with 4.6+4.7 without ht on far less vcores. Gotta give it some more testing (:
Edited by Cyro999 - 3/13/14 at 10:03am
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