OC i7 3770K Maximus V Formula watercooling

[Akarr]

I7 3770K
maximus v formula
32 gb ram corsair vengance
Asus GTX680
ssd samsung 840 pro 256gb
ssd samsung 840 500gb
2Tb Western digital green
Corsair AX860i

Compete watercooling with 2 radiators. 280 for cpu and 240 for the VGA
here is an image on how the rig looks.


i am trying to OC using the guide. http://rog.asus.com/194232013/overclocking/overclocking-guide-4-7ghz-core-i7-3770k-on-the-maximus-v-...

but temps goes up to over 80 with this settings. taking down the cpu voltage i get error in prime95 and intel burntest. i took
have tried running stable at 4.6 but temps still to high for a 24/7 clock

I am thinking of replacing the EK-Supremacy Acetal-Copper CPU block if its that who gives me the high temps to a another block.

Can anyone share settings for a nice stable 24/7 clock for my rig?

[chilinmichael]

I only have a Thermaltake Water 2.0 Extreme and barely tap 80c under OCCT in 15 minutes of running with an ambient room temp of 70F. I'm using CPU Level Up and @ 4.6Ghz stable now. Realize that unless you are doing some real crazy computing all the time (transcoding a dvd, etc) even a game usually won't push all 4 cores 100%, so you won't be near the testing temp. Honestly, that's a fine temp (just around 80) when overclocked.

What thermal paste did you use? Arctic Silver 5 I hope?

[Akarr]

chilinmichael wrote:
I only have a Thermaltake Water 2.0 Extreme and barely tap 80c under OCCT in 15 minutes of running with an ambient room temp of 70F. I'm using CPU Level Up and @ 4.6Ghz stable now. Realize that unless you are doing some real crazy computing all the time (transcoding a dvd, etc) even a game usually won't push all 4 cores 100%, so you won't be near the testing temp. Honestly, that's a fine temp (just around 80) when overclocked.

What thermal paste did you use? Arctic Silver 5 I hope?

I think i used "Phobya HeGrease Extreme" on last remount.

still i got watercooling for over 1200USD installed in this rig. and temps are a tad high for my taste, next step is to open up the cover of the cpu and to change the thermal grease to see if that changes.. talked with a friend that did it on his i7 3770k and he said he improved alot from doing so.

but still i need stable settings if anyone care to share.

[Akarr]

Why does my CPU jump up to 4.6Ghz when i have core speed set to 43 and bus to 100mhz?

[nikosa43]

Hi Akarr, nice system you have there.
The guide you followed is a given one, to help as much people as possible to reach this clock.
It is very generous in Voltages and aggresive in LLC because of the nature of different hardware. Usually all hardware will work at these settings (at least boot in windows and bench). If has used less, some people could not even boot in OS.
So you have to use it as reference and fine tune your system, to your needs and taste after starting alter settings and after having understand what is these things and what they do.
So, your water block and cooling system you have is perfectly Ok. You dont have to change anything.
The high temps you have is because your CPU is not delidded and with 1.37 Volts and Extreme LLC they are perfectly expected.
Also your thermal paste in my opinion, is one of the worst of the market and if you have made a not good application, contributes to your high temps. I would change it with Coolaboratory Ultra. If you have any aluminium to your coolers or you dont like it because is fully conductive, search for Shinetsu X23-7783, or Noctua NH-T1.
If you plan to delid, the results are amazing if you use Coolaboratory ultra but there are lots of drawbacks. You loose your warranty for the chip and you cant imagine how easy is to throw your chip to the bin during delidding and during socket installation. So if you are not absolutely sure about, stay away.
From the picture of your system I see all the slots of RAM occupied. If you want to OC its better to use 2 of them.Otherwise you put your CPU under bigger stress and you face more instabillity issues.
The fluctuation you see to the clock multiplier and Voltage is from overshooting from the Extreme LLC. (We dont want this).
Start playing in the BIOS conservatily and I can help for OC.

[Akarr]

nikosa43 wrote:
Hi Akarr, nice system you have there.
The guide you followed is a given one, to help as much people as possible to reach this clock.
It is very generous in Voltages and aggresive in LLC because of the nature of different hardware. Usually all hardware will work at these settings (at least boot in windows and bench). If has used less, some people could not even boot in OS.
So you have to use it as reference and fine tune your system, to your needs and taste after starting alter settings and after having understand what is these things and what they do.
So, your water block and cooling system you have is perfectly Ok. You dont have to change anything.
The high temps you have is because your CPU is not delidded and with 1.37 Volts and Extreme LLC they are perfectly expected.
Also your thermal paste in my opinion, is one of the worst of the market and if you have made a not good application, contributes to your high temps. I would change it with Coolaboratory Ultra. If you have any aluminium to your coolers or you dont like it because is fully conductive, search for Shinetsu X23-7783, or Noctua NH-T1.
If you plan to delid, the results are amazing if you use Coolaboratory ultra but there are lots of drawbacks. You loose your warranty for the chip and you cant imagine how easy is to throw your chip to the bin during delidding and during socket installation. So if you are not absolutely sure about, stay away.
From the picture of your system I see all the slots of RAM occupied. If you want to OC its better to use 2 of them.Otherwise you put your CPU under bigger stress and you face more instabillity issues.
The fluctuation you see to the clock multiplier and Voltage is from overshooting from the Extreme LLC. (We dont want this).
Start playing in the BIOS conservatily and I can help for OC.

Hi and thanks for your response.

i relidded the cpu now (first time ever ive done this) and changed paste to AS5.. i had to redo the procedure applying as5 since i got to much paste and got high temps as a result.. 90c.. hehe well after redoing it i got the temps down a bit and playing with the clock.

i know i have 32gb ram installed ( need it or not its there now.)

i am not after an uber clock but if i can run at 4,5ghz stable as a 24/7 i am happy with that. my problem now is iven if i set the corespeed to 43 it still jumps up to 46 and in cpu-z says i have 46 as corespeed for some reason. i dont know what setting i have missed.

what i am doing:
cpu level up - diasbled
Ai OC tuner - manual
bclk -100
core ratio - 45
memory frequence - 1866Mhz (will look in to this to set manual setting)
Xtreme tweaking - enabled
Cpu load line calibration - Extreme
cpu power phase control - Extreme
cpu current capability - 140%

Cpu manual voltage - 1.250 ( still testing and playing with the voltage here)

cpu c3 report - disabled

then rest is default

temps running intel burn test on my last attempt with 4.3ghz (but running 4.6 for some reason) with volt at 1.275 was just around 65c but peaked 73c

[Akarr]

here how temps looks. idle computer before burntest.

Intel burntest
]

prime95 stress
[ATTACH=CONFIG]18051[/ATTACH

[Akarr]

Update

I set to run X.M.P
core speed at 45
cpu voltage at 1.250

temps in prime are average around 60c and peaked 66c so far.. will let it run a day or so.. to check stability.

[chilinmichael]

This thread makes me wonder, not to hijack but to go into more detail, Arctic Silver 5 vs Coolabratory Ultra? Would temps be lower with the latter on average running an overclock?

*I did some research. Apparently the downside (and a major one) of the Coolabratory is that it WILL remove the writing off the lid of your CPU when you go to remove it, voiding any Intel support and hindering your ability to sell should you want to.

If you take a look here: http://skinneelabs.com/2011-thermal-paste-review-comparison/2/ you will see Phobya's HeGrease does very, very well...the Arctic Silver 5 is also on the list way down there (not testing as well). I went ahead and ordered the Phobya as it was recommended on multiple forums I'm on. I have the Water 2.0 Extreme with (2) 120mm pushing and (2) 200mm top fans pulling (though part of the radiator is obscured by case as always). Getting even a bit more heat onto the cooling block will reduce temps very well. I will let the Topic Author know how it compares once it's on, if you are interested!

[nikosa43]

chilinmichael wrote:
This thread makes me wonder, not to hijack but to go into more detail, Arctic Silver 5 vs Coolabratory Ultra? Would temps be lower with the latter on average running an overclock?

*I did some research. Apparently the downside (and a major one) of the Coolabratory is that it WILL remove the writing off the lid of your CPU when you go to remove it, voiding any Intel support and hindering your ability to sell should you want to.

If you take a look here: http://skinneelabs.com/2011-thermal-paste-review-comparison/2/ you will see Phobya's HeGrease does very, very well...the Arctic Silver 5 is also on the list way down there (not testing as well). I went ahead and ordered the Phobya as it was recommended on multiple forums I'm on. I have the Water 2.0 Extreme with (2) 120mm pushing and (2) 200mm top fans pulling (though part of the radiator is obscured by case as always). Getting even a bit more heat onto the cooling block will reduce temps very well. I will let the Topic Author know how it compares once it's on, if you are interested!

No worries, you don't hijack in any case. It's an open discussion and usually through this, everyone learn something.
It was clearly my mistake about the paste. (Definetely I have misread it). I went back to read again the post and I was sure I saw "IC Perihelion".
Now I read again and says HeGrease.... It's unfortunately from a bad experience with Perihelion I had in the past.
Anyway from the link HeGrease looks fantastic. I also would like to see results from this.
I don't want to doubt about comparison charts, (I read them also). I proposed this pastes because I have used them and I know they are very good. (Arctic Silver never worked for me if I compare it with Shinetsu).
Coolaboratory Ultra will not remove the print on your CPU. Cool Pro, will do it, as it needs special treatment for removal.
And yes, temperatures to a normal or to a delidded 3770K will be lower, if we compare Arctic vs Coolaboratory, in favor of the latter.