cooling for a 5ghz 11700kf

[AusWolf]

I used to have a 240 mm Corsair H100i on my 11700. It kept it around 75-80 °C in Cinebench (~160-170 W load), but failed to prevent it from throttling in Prime 95 (200 W load). My be quiet! Silent Loop 2 (280 mm) on the other hand, manages to keep it around 90 °C in Prime 95 and 70 °C in Cinebench. If you have the space, I'd say 280 or 360 mm AIO, otherwise you'll have to play with your PL values to keep it cool.

 

[gasolin]

Silent loop is a litte out of my budget and the pure loop i remember having some pump noise according to reviews

 

[pavle]

Are you sure 2% increase in CPU clock will bring you more than costs? Just sayin'.

 

[gasolin]

I had a 6 core at 4.8ghz, i just wanna se if i can get to 5.0ghz with 8 cores

When you oc you have to stop at some point, ghz and i wanna go for 5ghz

 

[phanbuey]

I had a 6 core at 4.8ghz, i just wanna se if i can get to 5.0ghz with 8 cores

When you oc you have to stop at some point, ghz and i wann go for 5ghz

Then just do that. If you're at OCCT at 75-80C, then your real life temps wont go above what? 70? You still have thermal headroom on that cooler if 5.0Ghz Prime Small FFT is not your goal...

Just for some perspective:
These chips under heavy gaming workloads are pulling around 100W-125W. Under office workloads they push anywhere from 10-125W.

They might pull 220W-240W during heavy benches (firestrike etc.)

They will pull well over 300W when running Prime w/ an OC and overvolt.

Setting a cooling goal of 5.0 flat when running 300W+ on a synthetic prime burn for funsies, and then limiting your gaming and every day OC to that 5.0Ghz because it bounces off throttle during prime @ 330W is not the most ideal OC approach. You're effectively gimping the chip for a situation that will never happen and is pulling 3x more power than you normally pull.

Better approach -- you have a great silent air cooler - use custom TVB clipping or wattage ceiling to dynamically OC on all core to 5.0/5.1/5.2 and have it drop to 4.9 or 4.8 once it hits 90C or 270W depending on how you want it set up. Depending on your chip may be able to get over 5.0 on your current cooler AND keep it under 80-90 in prime by dropping clocks / setting the W limiter to the OCCT pull.

 

[dcGColts]

Wow does 11th gen need that much more voltage then 10th? On my 10700k with z490 unify and corsair 360mm rgb pro xt pump with 6 noctua ip67 2000rpm in push/pull I do 4.9@1.175 5GHz@1.2v and 5.1@1.230 5.2@1.3.

 

[gasolin]

Nope, was something else, but the question still stands I guess. I don't feel like dumping lots of money on a cooler that is likely to be junk in five years or less.

Historical Binning Statistics

Historical binning statistics from Silicon Lottery

siliconlottery.com

 

[Octopuss]

Historical Binning Statistics

Historical binning statistics from Silicon Lottery

siliconlottery.com

What the actual fuck, why are you quoting a three yearts old post from entirely different thread?

 

[gasolin]

Silicone lottery you can se how much vcore some of the newer intel cpu's need for 5ghz

Some of the high core cpus don't need to much vcore but do to experience and reviews, 8 core or higher still gets warmer than lower core cpus with higher vcore

Just imagine 8 core cpu needing as much vcore as a 6 core cpu that already peakes in the mid 90's or higher at 4.9 or 5.0ghz

 

[kapone32]

The best way to try to achieve what you are saying is to position your AIO at the top of the case, Install 3 140MM fans with a speed of at least 1500 RPM in the front, Install 2 120mm fans in the bottom and set them all through PWM to at least 50% duty cycle, but not above the PSU and get serious air pressure with your AIO and the rear fan exhausting with the 2 bottom fans and the front fans providing nice cool air. The natural way that heat rises is part of it but you will also be exhausting the hot air from the interior of the case directly outside the case through the rad. I have never been a fan of front mounted Rads on AIOs.

 

[gasolin]

3x140 mm and 2x120 mm is not an option

I only have a corsair 4000D airflow case

 

[kapone32]

3x140 mm and 2x120 mm is not an option

I only have a corsair 4000D airflow case

Well if it's 2 140s at the front so be it but I am sure you can fit 2 i20s on the bottom even if the manual doesn't say so.

 

[gasolin]

360 mm case fans in the front

no holes for bottom fans

Max 4 fans with a 2 fan aio

Max 3 fans with a 3 fan aio

To me the rear fan makes no sense when using a 2 fan aio on the top

Have no idea if a 2 fan aio is possible with push pull the left holes,lanes for the fan in the top, that you always use no matter the size of the aio, is close to the windows, so a 240mm aio is further away from the mb than a 280mm aio that of course is close to the mb an what ever might be in the way of a 280 mm aio (although it looks like theres i pleanty of space for a 280mm aio)

I do have 4x arctic P14 pwm pst fans but only one cpu fan headere

I would run the fan at low rpm for normal temps i think max 800 rpm (also case fans) and higher at 75c, max at 85c

My mb

here is what i atm can settle with at normal loads at 1.345 volt and 4.9ghz with more than safe temps gaming late 60's fans only run faster at above 75 c

Intel Core i7 11700KF @ 4898.82 MHz - CPU-Z VALIDATOR

[f9rkfg] Validated Dump by DESKTOP-NEPLQTO (2022-01-16 22:40:22) - MB: MSI Z490-A PRO (MS-7C75) - RAM: 32768 MB

valid.x86.fr

 

[GorbazTheDragon]

Better approach -- you have a great silent air cooler - use custom TVB clipping or wattage ceiling to dynamically OC on all core to 5.0/5.1/5.2 and have it drop to 4.9 or 4.8 once it hits 90C or 270W depending on how you want it set up. Depending on your chip may be able to get over 5.0 on your current cooler AND keep it under 80-90 in prime by dropping clocks / setting the W limiter to the OCCT pull.

This, it's basically the setup I use, I get some extra clocks at lower power than the stock config with an undervolt, and then add a power limit to cap it against my cooling limits.

Make sure to use a power limit for doing this though, using a temperature limit will result in wonky performance if it does throttle due to the different mechanism used for power limit Vs temperature limit throttling on intel CPUs.

 

[AlwaysHope]

OP, your be quite cooler has 250w TDP, just set the mobo power limits to that & whatever highest all core OC you can get with that 250 limit via stress testing apps like LinX, p95 etc & leave it there imo. LinX will also stop on error altogether unlike p95.
I test my 11700K OC with LinX app min 5 runs, if it can handle that, it will be more than adequate for any game you throw at it. LinX hammers the cpu & Imc at once. Surely the most punishing app for OC testing.

 

[gasolin]

Need to make some adjust,ents it failed ibt at maximum

best aio ever ? https://www.tweaktown.com/reviews/9546/lian-li-galahad-aio-360-rgb-closed-loop-cpu-cooler/index.html

 

[claes]

It depends on what you want out of it.

I wouldn’t trust tweaktown personally. Their results are all over the place and often read more like ads than reviews.

 

[gasolin]

update:

Im not shure i want to go for 5ghz since it needs to be stable in all tests (atm not stable in ibt)

I tried ibt maximum but it was unstable after 2 or 3 runs, can someone tell me why ibt in very high takes about 40 sec each run but takes 700 sec at maximum, that's a huge difference, less than 7 min in very high for 10 runs and maximum takes more than 100 min, 1 hour and 40 min for 10 runs

I desided to try to go for 4.9ghz and for it to be stable in ibt maximum

I bought an aio, not 280mm since im not going for 5ghz but do need something better or atleast the advantage of water + radiator + fans instead of heasink + fans

Cooler Master MasterLiquid ML240L V2 not to expensive and fairly okay low noise pump (have experience with cooler master aio's), i use be quiet! Shadow Wings 2 in my case and have one as an exhaust fan, i bough 1 extra (they only had one in stock in the same colour and model, pwm 1100rpm).

Then i can try the stock fans, the be quiet shadow wings, the stock corsair case fans, scythe kaza slim fans or arctic p12 pwm pst fans (4 set of fans for the best combination of cooling and noise).

Basically im at the cooling limited of my dark rock pro 4, it goes beyond 90c in ibt and also as i remember in prim small fft, as mention not 100% stable in ibt maximum so i have to tweak it, more vcore i need a little more cooling (thats where the water comes in) but noit as much as i would need for 5.0ghz

Would the rear fan make any difference when it's trying to push some of the air out that one of the aio fan is trying to push thru the radiator in the top ?

 

[phanbuey]

update:

Im not shure i want to go for 5ghz since it needs to be stable in all tests (atm not stable in ibt)

I tried ibt maximum but it was unstable after 2 or 3 runs, can someone tell me why ibt in very high takes about 40 sec each run but takes 700 sec at maximum, that's a huge difference, less than 7 min in very high for 10 runs and maximum takes more than 100 min, 1 hour and 40 min for 10 runs

I desided to try to go for 4.9ghz and for it to be stable in ibt maximum

I bought an aio, not 280mm since im not going for 5ghz but do need something better or atleast the advantage of water + radiator + fans instead of heasink + fans

Cooler Master MasterLiquid ML240L V2 not to expensive and fairly okay low noise pump (have experience with cooler master aio's), i use be quiet! Shadow Wings 2 in my case and have one as an exhaust fan, i bough 1 extra (they only had one in stock in the same colour and model, pwm 1100rpm).

Then i can try the stock fans, the be quiet shadow wings, the stock corsair case fans, scythe kaza slim fans or arctic p12 pwm pst fans (4 set of fans for the best combination of cooling and noise).

Basically im at the cooling limited of my dark rock pro 4, it goes beyond 90c in ibt and also as i remember in prim small fft, as mention not 100% stable in ibt maximum so i have to tweak it, more vcore i need a little more cooling (thats where the water comes in) but noit as much as i would need for 5.0ghz

Would the rear fan make any difference when it's trying to push some of the air out that one of the aio fan is trying to push thru the radiator in the top ?

Couple things:
1. For AIO you can get up to a 10-15 C difference between intake and exhaust orientations (this is especially true for silent setups) -- when you're shooting for quiet, you need the air as cold as possible. Exhausting hot air through the radiator is going to make it less effective -- Intake is the way for a silent AIO setup.

2. You can stabilize the chip by running half the cores on prime 95 small fft for 4 hours, then run the other half for 4 hours, you will know if it has enough volts without completely baking your thermal paste into a fine powder. Then just run all core with power limits on to make sure the power draw is in line (throttle works) and your VRMs won't crash with your settings.

For IBT I usually just run standard for 300 passes -- usually that gives you 99% stability, combined with a long on test (keep the system on for 14 days of gaming and occasional stressing/heavy benching) if it doesn't die or throw a WHEA error then you're stable.

 

[GorbazTheDragon]

Rocket lake is quite temperature sensitive, you may have better luck with the clocks if you can keep the temps under 85c or so.

 

[gasolin]

Couple things:
1. For AIO you can get up to a 10-15 C difference between intake and exhaust orientations (this is especially true for silent setups) -- when you're shooting for quiet, you need the air as cold as possible. Exhausting hot air through the radiator is going to make it less effective -- Intake is the way for a silent AIO setup.

2. You can stabilize the chip by running half the cores on prime 95 small fft for 4 hours, then run the other half for 4 hours, you will know if it has enough volts without completely baking your thermal paste into a fine powder. Then just run all core with power limits on to make sure the power draw is in line (throttle works) and your VRMs won't crash with your settings.

For IBT I usually just run standard for 300 passes -- usually that gives you 99% stability, combined with a long on test (keep the system on for 14 days of gaming and occasional stressing/heavy benching) if it doesn't die or throw a WHEA error then you're stable.

I don't test that extreme, i just had no more than 3 runs of ibt at maximum before it got unstable (might just be a little more vcore or better cooling)

Ibt very high takes 40 sec each run but wt.... does ibt maximum (1 x above very high) takes over 10 min, 700 sec each run, that's under 7 min for 10 runs or more than 1 hour and 40 sec

Why this huge difference ?

Still unstable in ibt maximum

I think 240 + radiator + 1800 rpm fans are not enough, stock air cooler fans are 1200 and 1500 rpm where CUPIDHWmonitor is saying 1200-1300 rpm

I know i should have gone for atleast 280mm, i just don't go anymore for 5.0 ghz, does 280mm make a bigger difference than push pull

 

[phanbuey]

I don't test that extreme, i just had no more than 3 runs of ibt at maximum before it got unstable (might just be a little more vcore or better cooling)

Ibt very high takes 40 sec each run but wt.... does ibt maximum (1 x above very high) takes over 10 min, 700 sec each run, that's under 7 min for 10 runs or more than 1 hour and 40 sec

Why this huge difference ?

Still unstable in ibt maximum

I think 240 + radiator + 1800 rpm fans are not enough, stock air cooler fans are 1200 and 1500 rpm where CUPIDHWmonitor is saying 1200-1300 rpm

I know i should have gone for atleast 280mm, i just don't go anymore for 5.0 ghz, does 280mm make a bigger difference than push pull

IBT maximum uses up maximum ram where as high is like 2GB - so if you have 32GB of ram that's 40 sec * 16 ~ 10 mins. Plus throw in the added overhead of processing a dataset that size and you get to your 700 seconds. Your data set is about 15-16 times bigger.

As far as radiator it depends -- if you're seeing that it starts out at like 80 and then slowly rises to 100C, and the radiator is hot to the touch -- then yes a bigger rad would be much better, preferably a push pull 360 in the front.

If it's shooting up almost immediately to 100C and then dropping down immediately when you stop then it's a heat dissipation issue meaning that the chip / IHS can't dissipate heat fast enough to the cold plate to keep from hitting throttle.

 

[gasolin]

i does go slowley up to 100c and settles just under 100c when the fan are at max rpm and 4.9ghz

 

[phanbuey]

i does go slowly up to 100c and settles just under 100c when the fan are at max rpm and 4.9ghz

If you go push pull 360 in the front you could probably get it down to 85C with quiet fans... Or you need to go 4x 2000RPM fans on the 240mm and stick it as an intake to get maximum flow out of it.

 

[gasolin]

Just wonder why Techpowerup can get it to 81 c at 4.9ghz with 1.403 Nhu121s or or a 240mm aio

At 4.9ghz occt temps are okay

Intel Core i7-11700KF Review - Almost as Fast as the 11900K

The Intel Core i7-11700KF has the same 8-core/16-thread configuration as the much more expensive Core i9-11900K, which it can almost match out of the box, and beat with a little bit of tweaking. Thanks to its very reasonable price point of only $390, the 11700KF could also be a tempting...

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