Intel Core i7-14700K

[t3n4]

Did you remove all the plastic protection layers including from the CPU block?

yes i did

 

[InVasMani]

I have no idea a lot of things can cause temps to spike hard and fast. That's a clean looking custom loop though.

 

[t3n4]

Pffff. Problem solved...

 

[chugzillafx]

are there any official undervolting guides for the 14700K anywhere?
seems anything i find is hard to understand and i also noticed everyone does it a different way.
any help would be appreciated and i want to do it through the BIOS.
i have a gigabyte aorus elite x wifi 7 mb.

 

[BoggledBeagle]

Undervolting is not a good practise - you remove safety margin for stability by lowering the voltage. If you are not happy about temperature or power draw, limit the frequency and power draw. Leave the voltage alone.

 

[THU31]

Undervolting CPUs is not as effective as GPUs, the gains are rather small (unless we're talking 100% load on these high-core-count CPUs, but at this point it's better to power limit). And the problem is, it's hard to determine what the stock voltage is, because every motherboard's VRM performs differently, and you have options like SVID Behavior (auto, best-case, typical, worst-case, failsafe) and Load-Line Calibration.

What I do personally is I treat it like overclocking in the past. I keep lowering the voltage until Prime95 fails very quickly or I get a BSoD. Then I increase the voltage by 0.05 V and it's rock stable.
But this method is only reliable without any power limits, so you're sure that you're hitting the max frequency. I apply a power limit after I know the max boost is stable.

 

[chugzillafx]

well i don't know what you guys do but this is what i did so far.....i have the 14700K with a Noctua NH-U12A and as we all know ALL MB's OC any CPU we put in the socket so we have to adjust the settings. my mb is a gigabyte aorus elite x wifi 7 and its default settings were pl1 was 280 and pl2 was 4096 and the iccmax was 517.75 and that hit 100C on CBr23 instantly on the short test....so i changed the settings to intel defaults.....253-253-307-MCE-CEP off. then i set a load line calibration to power saving-normal-normal then a load line of 5. i get 35K on CBr23 and on the 30 minute test it never went over 73C.
i was asking for help-opinions because every video i have seen is totally different and nobody under volts the same way. and i didn't want to use a program so i did everything in the BIOS.

 

[BoggledBeagle]

14700K with a Noctua NH-U12A ... i changed the settings to intel defaults.....253-253-307-MCE-CEP off. on the 30 minute test it never went over 73C.

Impossible. 250W is close to the maximum that small air cooler can handle and you cannot reach this temperature unless you have the computer in a freezing room.

 

[chugzillafx]

Impossible. 250W is close to the maximum that small air cooler can handle and you cannot reach this temperature unless you have the computer in a freezing room.

my room is 62F or 16C. and yes it is possible with the proper calibration. my wattage stayed under 205 with my settings.

 

[BoggledBeagle]

my room is 62F or 16C. and yes it is possible with the proper calibration. my wattage stayed under 205 with my settings.

Well, in normal room temperature the temperature would be close to 80°C and with 200W heat load it seems more realistic.

 

[chugzillafx]

well for me and where i live those are normal room temperatures lol.
now keep in mind the calibration I'm using has EVERYTHING to do with it.
because it was hitting 100C with the default MB settings.
it took me awhile to figure this out.
i had no idea the stock MB settings are some crazy OC performance mode and not true intel specs.

 

[BoggledBeagle]

It seems that you figured out some nice settings, why do you feel the need to lower the voltage?

 

[chugzillafx]

well, undervolting is the only way to lower temps and raise scores-performance on CBr23 and gaming.....i have tried everything and nothing else works without losing a lot of performance like downclocking etc.
lowering the voltage is actually safe compared to overclocking.
these 13th-14 gen chips run so hot its crazy, so my goal is to lower temps and get the highest scores possible because that equals better gaming performance.
even if i had the largest AIO the default MB OC performance settings would still make it hit 100C.

 

[THU31]

Are you really struggling with temps in gaming? You probably get like 10% CPU utilization with E-cores enabled.

A 14900K offers 10% more gaming performance over a 14600K while consuming double the power. Is there a scenario where the 10% is actually relevant?

I genuinely don't understand why people push hardware to its limits these days.

 

[chugzillafx]

I'm undervolting so I'm not pushing anything. it's a 14700K, my temps are amazing but why use the MB OC performance settings that will eventually ruin the MB-CPU over time. when I'm getting way better results using true intel specs with a lineload calibration.
Motherboard Default settings could be COOKING your CPU! (youtube.com)

 

[Gica]

CPU Default versus CPU Custom (XTU profile)
Sufficient for single/low-middle CPU Usage applications. I unlock the full power only for encoding and rendering.
I use XTU (automatically loaded when starting the computer) because the transition is very easy, both in games and in applications.
Default: Ctrl+Shift+Home
Custom: Ctrl+Shift+F1

 

[ShrimpBrime]

Tuned

 

[chugzillafx]

View attachment 353719

View attachment 353720

Tuned

that's unreal you are getting almost 14900K numbers...how did you achieve this?

 

[Lew Zealand]

that's unreal you are getting almost 14900K numbers...how did you achieve this?

200MHz OC on P cores, to just below 14900K speed with same # of cores
400MHz OC on E cores, to above 14900K speeds, with 3/4 of the cores
6800 MHz CL34 memory, but I'm no pro on evaluting DDR timings

That could match someone who has inferior cooling on a stock 14900K.

 

[chugzillafx]

200MHz OC on P cores, to just below 14900K speed with same # of cores
400MHz OC on E cores, to above 14900K speeds, with 3/4 of the cores
6800 MHz CL34 memory, but I'm no pro on evaluting DDR timings

That could match someone who has inferior cooling on a stock 14900K.

that's it? wow
yeah, or someone using the new intel default profiles, some of the updated BIOS's have lowered performance like gigabyte using the new intel default profile.