Really NEED Undervolt guide for 14700k+MSI z790 mobo

[AndyTheGreat]

Hi, community. Just bought 14700K for my MSI z790-P Wifi DDR5. It burns like hell. I get 99-101 in Cinebench 24 and 102 in AIDA, around 99 in Premiere Pro and After Effects. Did not even try other software since it's obvious my DeepCool LS720 (promised by Tom's Hardware to cope with 13900k's over 300 watts) cannot withstand the 14700k 278 without thermal throttling.
So I either have to get another AIO - and I have no idea which one because there are aio owners saying their particular aio beats the temps of 14900k getting not more than 87 in tetsts and there are ones saying even the best 420 mm aios cannot cope with their 13700k - or undervolt my CPU.
I followed the instructions from some post right here on the MSI forums (cannot find it) and lowered the long term and short term power to 253 watts and also set the Lite Load from the default Mode 9 to Mode 3 and the temps are now ten degrees less. Is it enough? Is there any other method or is this one correct even?
I'm completely dumb in undervolting - those are just numbers in BIOS for me, so I really need some sort of an MSI mobo guide to correct and safe undervolting - step by step with screensots or a video. Please, help.

 

[FlyingScot]

I hope to find a better solution excluding a custom loop. As I said previously there's no way to buy it in my city and a worse chance to install it properly since we have no specialists and I have no experience. Apart from it, a good AIO advice would be much appreciated.

Andy, this news might be of interest as a future product.

Hell froze over, Noctua is working on a liquid cooler. It's very special - HWCooling.net

Noctua's first liquid cooling prototype uses the thermosiphon principleNow that’s news we didn’t expect from Computex 2024: Noctua, possibly the most famous coolers and fans company, has presented a liquid cooler. What’s unusual is that Noctua is focused on silent operation (which liquid cooler...

www.hwcooling.net

Btw, this site has really good comparison charts for you to peruse in your spare time.

 

[AndyTheGreat]

Andy, this news might be of interest as a future product.

Hell froze over, Noctua is working on a liquid cooler. It's very special - HWCooling.net

Noctua's first liquid cooling prototype uses the thermosiphon principleNow that’s news we didn’t expect from Computex 2024: Noctua, possibly the most famous coolers and fans company, has presented a liquid cooler. What’s unusual is that Noctua is focused on silent operation (which liquid cooler...

www.hwcooling.net

Btw, this site has really good comparison charts for you to peruse in your spare time.

I hate the way all Noktua products look, but if this cooler proves better than others, I'm gonna buy it... Though, the price may change my determination )) Thanks for the link, went to study it

 

[FlyingScot]

In regard to the case fan comparison charts, while it's still early days in my testing, it does appear that my personal fan testing experiences align quite well with their charts - which is more than I can say about a lot of other Internet sources. The latest fan chart is found here: https://www.hwcooling.net/en/arctic-p14-max-the-best-yet-well-it-depends-review/14/. If I remember correctly, they also do cooler reviews.

 

[Arctucas]

Unfortunate that you do not like the Noctua, although the fans I would recommend for best performance (not lowest noise level, by any means) are the Industrial (IPPC) line, which are all black, if you remove the brown corner isolators.

NF-A14 industrialPPC-3000 PWM

Conceived for industrial heavy duty applications that require enhanced cooling performance and advanced ingress protection, the NF-A14 industrialPPC (Protected Performance Cooling) is a ruggedised high-speed version of the award-winning retail model. Thanks to the outstanding aerodynamic...

noctua.at

I have noticed that fan reviewers never seems to use these in there comparison charts against other fans, for some reason.

 

[FlyingScot]

Unfortunate that you do not like the Noctua, although the fans I would recommend for best performance (not lowest noise level, by any means) are the Industrial (IPPC) line, which are all black, if you remove the brown corner isolators.

NF-A14 industrialPPC-3000 PWM

Conceived for industrial heavy duty applications that require enhanced cooling performance and advanced ingress protection, the NF-A14 industrialPPC (Protected Performance Cooling) is a ruggedised high-speed version of the award-winning retail model. Thanks to the outstanding aerodynamic...

noctua.at

I have noticed that fan reviewers never seems to use these in there comparison charts against other fans, for some reason.

I believe the STS Youtube channel does. Check him out. He is a funny guy.

https://www.youtube.com/@STSYT

 

[AndyTheGreat]

Well... Don't know what to say...

 

[mariusbocsenean155e02dc]

Hello, I currently have msi z790 tomahawk wifi and I7 14700k (I'm using iCUE H150i ELITE to cool it)and I want to undervolt it so that I don't get 97°c in cinebench. I'm don't understand half of the stuff that is written here so can someone give me universal settings that will help cool down my cpu?

 

[FlyingScot]

Hello, I currently have msi z790 tomahawk wifi and I7 14700k (I'm using iCUE H150i ELITE to cool it)and I want to undervolt it so that I don't get 97°c in cinebench. I'm don't understand half of the stuff that is written here so can someone give me universal settings that will help cool down my cpu?

May I suggest this wonderful little guide over here:

https://forum-en.msi.com/index.php?threads/guide-how-to-set-good-power-limits-in-the-bios-and-reduce-the-cpu-power-draw.400270/

I’m also working on something that might help you out in the near future.

 

[AndyTheGreat]

Hi, friends. Your opinion on this is needed. Also if I've downvolted to -0.125 and set the power limits do I have to do what's described in this post there?

https://www.reddit.com/r/intel/comments/1ej6bib

And a quick off the topic question - what is ME? Do I need to install it? I've never installed it before - just the main bioses

 

[citay]

That post probably somewhat describes something similar to what they will do in the upcoming microcode, setting certain voltage limits internally. And MSI are also looking into exposing such a setting in the BIOS, see here.

By lowering the voltage (by whatever methods) while making sure we're staying stable, we're already doing one hugely important step in protecting the CPU and making sure it can run more efficiently. By setting power and current limits, we protect the cooling and the CPU additionally. Then if we get another tool such as this "IA VR Voltage Limit" which sets an actual ceiling for it, we can protect things even better, so i'm all for it.

And a quick off the topic question - what is ME? Do I need to install it? I've never installed it before - just the main bioses

The Management Engine aka Intel Converged Security and Management Engine (CSME) is an embedded system inside the PCH/chipset, talking over secure channels to the CPU and the BIOS. The firmware TPM is also part of this. Usually the ME FW is updated along with the normal BIOS update, but recently, they split the BIOS update and the ME FW update into two parts.

Now, i think that the BIOS update actually also updates the ME sometimes still. Because on a recent BIOS update i did on a PRO Z790-A WIFI, from factory BIOS 7E07vA4 to 7E07vAB (when that was the latest stable version), it also had the latest ME afterwards, without having to update it seperately. The ME version is for example shown in the BIOS under System Status. If it's old, update it with the seperate tool they offer.

 

[AndyTheGreat]

Thanks, @citay
As for the Me update. Do I need to install it at all? Does it influence anything in terms of stability? This is my home PC and I'm the only user here, so don't really care much for the security (in case I understand its function correctly)

 

[citay]

Just update it if it's old, takes two minutes and a reboot. Intel won't say exactly what is fixed.

 

[charonme]

By the way, everyone
Can you explain this video? This guy claims a 2-fan AIO can withstand the 14700k's 348 watts at 90 degrees...

more things are very suspicious in that video: the max package power shown in his hwinfo is way too high compared to the low CB R23 score he got for a 14700K (especially when it's only 1 loop)

Can confirm that the TechPowerUp Wattage numbers have no relationship to what is reported by HWInfo. They are way too high for both my coolers. I suspect they are wall socket related or something... Otherwise, maybe the guy is an Eskimo!

which techpowerup article? the one posted above only said: "For overclock testing, the motherboard has MCE enabled, and all limits are removed. We then set the CPU to 4.8 GHz at 1.21 volts. This results in the CPU going from the 125-watt limit defined by Intel, all the way up to 200 watts under a sustained heavy load." which I don't find that extreme

anyway it's difficult to compare the results from various reviews not only because of varying ambient temperature, but also how long they let the benchmark run (for watercoolers this needs to be as long as the water temperature is rising which can sometimes be even 20 or more minutes) and also their bios settings, especially DC_LL and the noise level too. I like the HWcooling tests the most because they do noise-normalization, show delta temperatures above ambient and measure the EPS cable for power (although this has the disadvantage of including VRM losses)

can someone give me universal settings that will help cool down my cpu?

Sounds like you're pushing out of spec power into your cpu. The simplest and most universal setting would be to decrease your PL1 and PL2 limits in BIOS (which most likely will also slightly decrease your performance by a tiny bit without more work and testing). But you should set them below 253W (and IccMAX to 307A) anyway

 

[AndyTheGreat]

Hi, guys. Does any one have an idea why the BCLK 100 MHz option could just... disappear in the Bios? I've got the latest - finally a full release, not the Beta - bios installed from here: https://ru.msi.com/Motherboard/PRO-Z790-P-WIFI/support#bios
Yesterday I was experimenting with the settings to check whether the temps would change, and I used this option several times. Today I continued and discovered the lock BCLK on 100 MHz can nowhere be found. So I reset the Bios, changed from Normal user to Experienced - the option is gone. Whatthehell?