Tuf Z690 Plus D4 Cpu Input Voltage?

[Herby-007]

Hi,

Just updated from a i7 12700kf to I9 14900kf. I installed the latest bios 4301 prior to CPU change. And then set the Intel limits in bios to performance 307amps. Did not go extreme 400amps due to only having a 240mm AIO. 

Now when I monitor CPU Input Voltage in Armoury Crate its set at 1.809v. 

I get idle temps CPU 28c and CPU Package 31c.

CPU Core Voltage is fluctuating from below .88v to 1.518v

Are above readings all good? 

System:

Intel 14900kf

TUF Gaming Z690 Plus Wifi D4 - Latest Bios 4301

64GB Corsair Dominator Platinum 3200mhz 16-20-20-38 CL16 - XMP 1 on

1000w Power Supply

240mm Corsair ICUE H100i Pro XT AIO

Thanks

Herbs

[T4ranezy]

I noticed that the CPU core voltage of 1.518V is a little high for long-term use. I had a similar voltage when using the "Optimal" BIOS settings.

To improve stability, I manually set a lower voltage—1.42V (you can try a similar value). After this change, my system runs super stable without exceeding that voltage.

Here are the two BIOS settings you need to adjust:

•  Actual VRM Core Voltage → Set to Manual Mode
• CPU Core Voltage Override → Set to 1.42000

Additionally, after updating to the latest BIOS (version 4301), I experienced game crashes. I reverted to the previous version (4101), and now everything is perfectly stable again.

[Vynra]

cpu input voltage is a lot different from actual cpu voltage.

CPU input voltage is usually around 1.8v so your setting is completely normal as it is usually a little over as margin of error/stability.

1.5v+ is normal during single core/extremely light loads as it needs that voltage to hit the max boost clock. 

You can tell by your temperatures that this voltage is not going to do anything to your cpu. AMD has this boost algorithm as well.

a 240mmAIO should be able to handle the Extreme profile no issue. the performance profile is more for people with low rated air coolers. I would say go to the extreme profile to get more performance.

Anyone telling you 1.5v is high or dangerous is living in the past or does not like high numbers. You can leave it. 

You can technically undervolt the cpu but that requires testing and a lot of time to make sure your fully stable.

Id say just go to the extreme profile and enjoy your beast of a CPU.

[T4ranezy]

The post you shared contains some accurate points about CPU voltages and Intel's 14th-gen behavior, but it also has some oversimplifications and potentially misleading advice.

• If temperatures are under control (e.g., below 90°C under load), the voltage isn’t causing immediate harm. The post is right that people often overreact to high voltage numbers without context.
• "Anyone telling you 1.5v is high or dangerous is living in the past or does not like high numbers. You can leave it. This is reckless advice. While short spikes are fine, long-term high voltage (especially with high temps) absolutely can degrade Intel 13th/14th-gen CPUs. There are many reports of degraded 13900K/14900K chips running stock settings.

[Vynra]

please reread what I said.

i thoroughly explained that 1.5v during IDLE or SINGLE CORE workload is completely normal and is needed for some chips to hit the single core boost. I never said anything about fixed voltage or long term.

It is not reckless advice lol. this is how the processor is supposed to work. They fixed the voltage requests in the microcode/eTVB to counteract that and already and Literally made motherboard manufacturers change their loadlines to reflect how intel wants the processor to handle voltage.  Whether you like it or agree with it or not. Your fear mongering due to your own biases. Intel wants this. 

Most people are using intel default settings and as of now we are not having a widespread degredation issue like we were when it first started happening. There are so many factors of CPUs not working or dying earlier than expected after the microcode update.

1. The cpu could be faulty and a part was not working correctly in the first place and died not long after installing.

2. The user couldve already had degredation before the microcode update which that wont fix.

3. user couldve overclocked wrong.

This is for intel to sort. Undervolting can cause stability issues and is extremely time consuming to ensure stability. Just let people plug and play without making them worry.