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***Intel i7 4790K Owners thread***

I just downloaded the latest Prime95. I'm normally dead against using these synthetic tests as it's not what I'll expect my PC to do in daily use. However, I think I could've used better paste on my CPU so before I change I thought I'd test temperatures.

I load up Prime95 small FTT's for maximum heat, and pow! The CPU shoots straight to 98C. Is that normal for that kind of test? The blend test is hovering around the mid 60's.

Edit to add : CPU is running 4.6 @ 1.26 vcore.
 
snips86x said:
Yeah, mine will do that at 4.7ghz but when gaming or benching in Firestrike/Valley, it's closer to 70's.
Click to expand...

Mine sits mid 60s when gaming. I think my temps are fine as far as maximum goes, but the graph in Aida shows constant peaks and troughs and I can't remember it being like that before. At first I thought it was micro bubbles but the loops been filled for a month now.
 
Here's a screenshot...

W7FFVgoh.png.jpg

As you can see, temps barely rise above 60C but they aren't very uniform.

It's probably normal, I just haven't paid much attention to it before. :confused:

Here's a full size pic...

W7FFVgo.png
 
P95 ver 28.5 sent temps to mid 90's at stock on both 4790k's I've owned. Games usually anything from 60-75c at 4.7 on 1.300.
 
hi Setter

how are you, my new CPU is running better than my last 4770, my last CPU blew last week, i dont think i can blame the lap and delidd as that was a year ago..it's voltage looks like 1.26v at 4.4 OC, i cant seem to lower the voltage it's stuck on Auto

this cpu is a straight fit, i havent lapped or delidded, or lapped the new Megahalems either.........just in case ;)

even so its temps look pretty good............i'm not sure that i want to risk going above 4.4 yet

thanks
 
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No idea as to what happened with the other chip? 1.26v seems pretty similar to both of mine. Be interesting to see what sort of oc you get out of it.
 
setter said:
No idea as to what happened with the other chip? 1.26v seems pretty similar to both of mine. Be interesting to see what sort of oc you get out of it.
Click to expand...

my other CPU just let go, it took a week to detect the true fault because i had no spare PSU or mobo to test it, i had to replace all 3 until i found out it was the CPU.... the pc just switched off as if it was a power cut, it of course felt like the PSU.

this more powerful CPU is more Gigabyte friendly, it's an instant OC where as my previous 4770 needed a few adjustments..but i cant adjust the Voltage in AUTO mode, it's fixed at 1.26............ but the 4770 could be adjusted in AUTO..... it's most odd

its running well, it's cooler than my previous CPU and considering Megahalems and the CPU are totally stock, this is quite surprising, it's probably been assembled in the factory with good contact under the lid, unlike the 4770

i might try it at 4.6 tomorrow

i'll only lap and delidd if i can get a second cheap cpu off the web
 
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stulid said:
snip
Click to expand...
Thanks for these settings. I have Z97X Gaming 5, 4690k, 16Gb Hyper X Savage. I think the 4690k being of 2015 Vietnam manufacture might be capable.

Since you mention C1E, EIST halt and show settings for LLC, I'm going to post this here:

"Hi, I have a Z97X Gaming 5 and 4690k, 16Gb Hyper X savage, x300 sandisk. I changed one setting related to the CPU, and it was LLC to low (there was no disabled). I did the same with my Q9550 and at stock it needed a vcore bump or was unstable. I was not doing any kind of stress testing but some programs failed to launch and I googled and was pointed to this:
http://support.microsoft.com/en-us/kb/929833

Ran it and told me it corrected some file system corruption. So now I have it back on auto for LLC. I have a 2015 chip made in Vietnam, and would like to try a bit of an overclock (using Prolimatek Megahelim rev b).

Do you use power saving like C1E halt state? With my Q9550 I disabled these functions and overclocked then kept it like that 24/7 since 2009.

The reason I put LLC on low was because I read it can create voltage spikes as it tries to keep the voltage at what the bios is set and I prefer to just start with a higher vcore for a smoother power delivery."

As I said in last paragraph, I think putting the minimum vcore up to balance using low LLC sounds better long term to me.

When I had my q9950 at stock and LLC disabled I got a new mobo and PSU only to find that upping the vcore at stock was necessary.

They must set the vid assuming LLC is on.
 
Mine's a Malay. Arrived today. Set the adaptive to +0.040v, stable at 4.6. Not tried higher yet, or lowering core voltage.

What's the typical adaptive offset you use?
 
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megatron said:
Thanks for these settings. I have Z97X Gaming 5, 4690k, 16Gb Hyper X Savage. I think the 4690k being of 2015 Vietnam manufacture might be capable.

Since you mention C1E, EIST halt and show settings for LLC, I'm going to post this here:

"Hi, I have a Z97X Gaming 5 and 4690k, 16Gb Hyper X savage, x300 sandisk. I changed one setting related to the CPU, and it was LLC to low (there was no disabled). I did the same with my Q9550 and at stock it needed a vcore bump or was unstable. I was not doing any kind of stress testing but some programs failed to launch and I googled and was pointed to this:
http://support.microsoft.com/en-us/kb/929833

Ran it and told me it corrected some file system corruption. So now I have it back on auto for LLC. I have a 2015 chip made in Vietnam, and would like to try a bit of an overclock (using Prolimatek Megahelim rev b).

Do you use power saving like C1E halt state? With my Q9550 I disabled these functions and overclocked then kept it like that 24/7 since 2009.

The reason I put LLC on low was because I read it can create voltage spikes as it tries to keep the voltage at what the bios is set and I prefer to just start with a higher vcore for a smoother power delivery."

As I said in last paragraph, I think putting the minimum vcore up to balance using low LLC sounds better long term to me.

When I had my q9950 at stock and LLC disabled I got a new mobo and PSU only to find that upping the vcore at stock was necessary.

They must set the vid assuming LLC is on.
Click to expand...

I am not to sure what you are trying to say or ask?

But I am assuming its with LLC on low you needed more Vcore? that maybe because LLC on low actually reduces the Vcore less than auto.

LLC on Turbo/extreme is adding Vcore.

Also overclocking on LGA775 is different to Z97.
 
stulid said:
LLC on Turbo/extreme is adding Vcore.

Also overclocking on LGA775 is different to Z97.
Click to expand...

I see LLC as taking away the shock absorbers on a car. You will get a very bumpy ride. The voltage will go from low to high rapidly. This is not something you would be able to tell unless u have an oscilloscope rather than a digital multimeter measuring vCore.

The guy in the video tells it like vdroop was invented by Intel, its not its basic electronics 101 V=IR. The cpu wants more power so draws more current and if there is no compensation i.e. LLC then voltage falls.

here is video:
https://www.youtube.com/watch?feature=player_detailpage&v=c8WrGJ4GLm4#t=1175

He is referencing this thread:
http://linustechtips.com/main/topic...-overclockers-should-care/page-2#entry1534503

This thread is talking about the danger being a user setting eg 1.39v vcore in bios and underload the LLC compensation will set 1.45v and lets say for example the chip's "death voltage" is 1.4v.

What I'm saying is that even if the LLC is measured to be 1.45v LLC could be spiking and giving a pico second worth of an even higher voltage (called overshoot). Typically when going from idle to load [this happens] and then what effect does the power saving modes like C1E have? You are going from 800Mhz to 3.9Ghz (at stock) not sure how LLC is implemented but potentially it could be ramping up that change.

I wonder is 8-pack has an input on this?

As I said I ran my q9550 @ 3.81Ghz 24/7 for 5 or so years with no LLC or cpu idle states. No idle states was more due to the fact I had an overclock and didn't want to change anything to potentially make it unstable.

tl;dr I'm being a pansy about overclocking my new chip.

I was also wondering about the difference between vcore and v offset (didn't have that on LGA 775), I guess I'll go read about it: http://www.overclock.net/t/1375305/manual-vcore-vs-offset-oc
 
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Vcore is Vcore its just the amount of Voltage going into the CPU.

Voffset is instead of say setting Vcore to 1.35V to get 4.5Ghz (numbers plucked out of the sky) you leave Vcore on auto and add the offset voltage that the board applies to the CPU when its under load.

So say Auto vcore = 1.25V, you set an 4.5Ghz overclock via the Turboboost ratios (so the CPU speed still drops etc when not needed) you would then set offset to 0.1V to give the CPU 1.35v when it needs it, when it goes under load and goes back upto 4.5Ghz.

So in simplified terms, Voffset is what you set to add to the Auto Vcore when the CPU is underload (overclocked).
 
Well i use LLC on the highest setting on my Z87 board in sig, for just over 2 years now with first a 4770k and x2 4790k's. Board is still going strong. On haswell it's using offset/adaptive vcore you have to look out for, theese methods add .1v under high load with certain programs, such as p95 which you shouldnt be stressing haswell with anyway. Iuse fixed vcore cause tbh the difference with adaptive/offset and C1E set is so little. You will save pence per year, haswell is very efficient/low power even when oc'd 24/7.
 
I don't use adaptive voltage, I set vcore where I want it to stay (1.26v for 4.6Mhz). I set LLC to extreme and this prevents any fluctuation in voltage. It stays rock solid at 1.26v even when the CPU downclocks in idle.

I also leave turbo boost disabled.
 
Interesting. Might give the vixed voltage a go. I was less concerned about the cost of the additional power running a fixed vCore, and more about the impact to idle temps. I see vCores drop to ~0.8 at 800mhz you see. How big is the impact, Minimal?

How do you disable the turbo in an ASUS UEFI BIOS, can't seem to see the option. Is it done by default whan you sync all cores?
 
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