Question 14700K is fine at 5.6ghz under no load, but once i stress test it, it drops to 5ghz or even less ?

[SparkyPC]

Hi guys, I tried everything. CPU temps don't go above 60C but as soon as I try to stress test it, the frequency drops sometimes even below 5ghz. My XTU score is only 9k where other people at 5.6ghz with AIO cooler like me reach around 13k. It must be something with the voltage or a blockage that doesnt let the CPU actually try for stable 5.6ghz. I dont want overclocking, i only want the advertised speeds I paid for.

Specs:
PSU: Gigabyte 850w Gold UD
Mobo: Gigabyte B760M D3HP Rev 1.0
CPU Cooler: MSI Water Cooler AIO 240

BIOS is updated to latest version. Any questions or further details please don't hesitate to ask.

 

[thestryker]

You do realize that all responses you got until now have all been for overclocking your CPU right?!
In fact your CPU is already overclocked now and all responses are to overclock it even more.
Your CPU limit should be at 253 at max and it's at 375 that's 50% higher than it should be...a 50% "overclock" on the power.

You're flat out wrong here. A 14700K will be running somewhere around 1.2V under all core loads which is over 200A at 253W. The board in question is limited to 160A which means it cannot power the CPU properly.

 

[TerryLaze]

What are the stock clocks then? What frequency is for 253?

There are no stock clocks, it depends on how hard the load is, it will clock as high as it can up to the limit, of either the power or the max clocks (or amps or volts) .
(That's the same for intel and amd)
But 5.6 is only for one core and in light loads, anything else will be below that unless you overclock.

You're flat out wrong here. A 14700K will be running somewhere around 1.2V under all core loads which is over 200A at 253W. The board in question is limited to 160A which means it cannot power the CPU properly.

Again, depends on what you are going to run, if you are out for server workloads then yes but other software is going to run at much lower volts at the same max watts.

 

[Richj444]

Did you look in the BIOS for the 0x104 microcode option. The early microcode unlocks IccMax adjustment while in Windows.

This is a bad idea. The early BIOS versions are susceptible to the voltage bug and can kill the cpu over time. You definitely need to stay on the latest version with a 14th gen cpu.

 

[uWebb429]

You definitely need to stay on the latest version with a 14th gen cpu.

Using the early 0x104 microcode allows one to undervolt the CPU on a B760 motherboard. This is especially important when running unlocked K series CPUs on these motherboards. The voltage going to the CPU will be a lot less after an undervolt compared to running the latest BIOS versions and latest microcode versions from Intel.

Full load temperatures can drop by as much as 20°C. I think significantly less voltage and less heat is a much better fix compared to the solution that Intel has come up with.

 

[Richj444]

Using the early 0x104 microcode allows one to undervolt the CPU on a B760 motherboard. This is especially important when running unlocked K series CPUs on these motherboards. The voltage going to the CPU will be a lot less after an undervolt compared to running the latest BIOS versions and latest microcode versions from Intel.

Full load temperatures can drop by as much as 20°C. I think significantly less voltage and less heat is a much better fix compared to the solution that Intel has come up with.

I wonder why Intel didn't think of that solution themselves?

 

[ak47jar3d]

The B760 motherboards do not support an all core overclock like the Z790 motherboards support. As the load goes up, the MHz will go down.

What are the PL1 and PL2 turbo power limits set to? Use HWiNFO to confirm these settings. At default values the CPU will power limit throttle during any full load stress test. You can try increasing these limits. If the voltage regulators are not well cooled, you might end up with some VR thermal or VR current limit throttling.

B760 motherboards are not the best choice to get maximum performance out of a 14700K.

HWiNFO should also be able to report what the default turbo ratios are based on how many cores are active.

I was thinking the same thing. Verify the boost behavior is correct as the clockspeed may be getting throttled for a multitude of different reasons (cooling, bios, etc).

 

[SparkyPC]

I was thinking the same thing. Verify the boost behavior is correct as the clockspeed may be getting throttled for a multitude of different reasons (cooling, bios, etc).

I played a lot of different games and monitored CPU load and temps. Temps dont go above 60 as i mentioned earlier and if the CPU load is around 10-15% i get full speed. But during stress test it drops even further to 4ghz. Some people would call this bottlenecking, some others just wouldnt bother, but i ordered the mobo i mentioned earlier and hopefully i will make a good chunk of that money back by listing my mainboard as used like new

 

[drjohnnyfever]

Using the early 0x104 microcode allows one to undervolt the CPU on a B760 motherboard. This is especially important when running unlocked K series CPUs on these motherboards. The voltage going to the CPU will be a lot less after an undervolt compared to running the latest BIOS versions and latest microcode versions from Intel.

Full load temperatures can drop by as much as 20°C. I think significantly less voltage and less heat is a much better fix compared to the solution that Intel has come up with.

That's what I had to do with my 14600K...

When the newer Bios' came out they under powered the CPU, but my temps were still in the low 90's. I didn't like that outcome, because I had already figured out how to make it run faster and cooler by undervolting it. I started with a more substantial board a MSI Pro Z790A wifi, but even choosing the initial setting of stock cooler when running for the first time, the temps were lower and performance higher than any of the newer Intel "fix" bios'.

After wrestling with it for awhile with the newer bios', I ultimately had to set the bios to the default performance settings and then go in - as I had even with the first bios before and Intel updates, to undervolt it using the CPU Lite and a few other settings. The result was excellent. temps are in the mid-80's, never throttles, super fast and consistent on all P cores 5.5Mhz and E Cores 4.3-4, can't remember exactly there.

Here's the thread with the details of what I did. I've posted this a few times and no one has replied if it helped them or not, but the Reddit users in the link raved about it and it was essentially only one step further from the videos in the link...
https://forums.tomshardware.com/threads/i7-14700k-temps-too-high.3871729/page-2#posts
post#50

 

[uWebb429]

I wonder why Intel didn't think of that solution themselves?

Intel decided to limit overclocking and CPU voltage adjustment to the higher profit margin Z790 chipset. This is known as product differentiation. Users now have one more reason to buy motherboards with the Z790 chipset compared to motherboards with the lower profit margin B760 chipset.

The result was excellent. temps are in the mid-80's, never throttles, super fast and consistent on all P cores 5.5Mhz and E Cores 4.3-4, can't remember exactly there.

The Intel default settings are far from optimum. A 20°C drop in full load temperatures after a few minor voltage tweaks is well worth pursuing. Sitting beside a noisy computer all day is no fun.

 

[Richj444]

Intel decided to limit overclocking and CPU voltage adjustment to the higher profit margin Z790 chipset. This is known as product differentiation. Users now have one more reason to buy motherboards with the Z790 chipset compared to motherboards with the lower profit margin B760 chipset.

I'm not sure you understand what the issue was with the 13th & 14th gen Intels. You can not fix it just by adjusting voltage in BIOS because the bug allows the processor to request higher voltages anyway. The only way to fix that is with the latest Intel microcode, which is contained in motherboard manufacturer's latest BIOS.

Intel has discovered what actually caused its top gaming chips to break and is rolling out another fix

Another microcode update to fix Intel stability issues and the wheel keeps on turning.

www.pcgamer.com

 

[drjohnnyfever]

Intel decided to limit overclocking and CPU voltage adjustment to the higher profit margin Z790 chipset. This is known as product differentiation. Users now have one more reason to buy motherboards with the Z790 chipset compared to motherboards with the lower profit margin B760 chipset.


The Intel default settings are far from optimum. A 20°C drop in full load temperatures after a few minor voltage tweaks is well worth pursuing. Sitting beside a noisy computer all day is no fun.

Yeah, I don't really understand at this point the unwillingness to do the tweaks on one's own. These chips are meant to perform but they have to remain cool. Initially, when the 14th Gen chips started crapping out, it was the MOBO manufacturers getting the blame because they defaulted the boards in a wide-open state. But in doing this, they outted a defect in the chips. If they get too hot they deteriorate.

Knowing this allowed a lot of people to follow the experts to address the issue with the MOBO's which was too much voltage. Get the voltage down and the heat goes down and the performance goes up. Why?! Because the chips don't need all of the voltage they were being force fed to get to their highest performance levels - So, undervolt the chip. If they don't get too hot they might not deteriorate - there could still legitimately be bad chips, but if the heat is what leads to the degradation, don't allow it to overheat to the upper 90's and 100C levels.

The details how to do it are in the link above. I am a novice and was able to understand what was going on and follow directions to fix the issue. The 14600K is an excellent chip - as I imagine the 14700K and 14900K's are as well - and it's been running with the tweaks at a high level and stable for almost a year now. My chip performs up to the up to the level the 13700K in the Reddit link I provided and it took about 90 minutes to set it. I check it every couple of months to make sure my son hasn't messed with anything - it's his gamer, and it is still exactly the same as when I set it up after the last Bios update I installed and then tweaked in December 24.

 

[Thunder64]

Would the ds3h rev 1.0 be enough since it has 6+1+1 vrm stages?

That's just throwing good money after bad, not to mention 14th gen degrade if pushed too far.

 

[TerryLaze]

I'm not sure you understand what the issue was with the 13th & 14th gen Intels. You can not fix it just by adjusting voltage in BIOS because the bug allows the processor to request higher voltages anyway. The only way to fix that is with the latest Intel microcode, which is contained in motherboard manufacturer's latest BIOS.

Intel has discovered what actually caused its top gaming chips to break and is rolling out another fix

Another microcode update to fix Intel stability issues and the wheel keeps on turning.

www.pcgamer.com

The issue is that the maximum voltage is set high and the bug allows that high voltage to get even higher and go above the threshold of damaging the CPU.
Manually lowering the voltage will set the max voltage so low that even with the bug requesting more voltage the final voltage will be way lower that the threshold of damage.

tl;dr
you don't need to have the bug fixed if you make sure that the voltage will always be below the dangerous level.

 

[SparkyPC]

I found the Gigabyte Z790 D AC Rev 1.0 version for like 10 euros more than the Asrock b760m Steel Series. Is it a better option to hop into the Z790 chipset?

 

[drjohnnyfever]

I found the Gigabyte Z790 D AC Rev 1.0 version for like 10 euros more than the Asrock b760m Steel Series. Is it a better option to hop into the Z790 chipset?

I used the MSI Pro Z790 A Wifi and am very happy with it. I know from conversation here that the Z790's with the 13th and 14th gen are super.

Use HWMonitor to determine the CPU isn't running hot after you get the OS installed. Once you do that, update to the newest bios. After that, watch those videos and read that Reddit link I left above. Tune the system to get the most out of it, while minimizing the voltage and thus the heat and damage to the CPU.

 

[SparkyPC]

I used the MSI Pro Z790 A Wifi and am very happy with it. I know from conversation here that the Z790's with the 13th and 14th gen are super.

Use HWMonitor to determine the CPU isn't running hot after you get the OS installed. Once you do that, update to the newest bios. After that, watch those videos and read that Reddit link I left above. Tune the system to get the most out of it, while minimizing the voltage and thus the heat and damage to the CPU.

Thanks for taking the time to help mate. Greatly appreciated

 

[drjohnnyfever]

Thanks for taking the time to help mate. Greatly appreciated

No problem. Please do update after you've done the tweaks in the links. It works! You'll need Cinebench23 too to test/tax the system and HWMonitor to read the temps while running Cinebench23. If temps get even to the mid-90'sC, stop the test and go lower on the settings described in the videos and the Reddit. Your 14700K will run a little hotter than my 14600K, but I think you'll be surprised how low you can keep the temps on the CPU by just making the described adjustments.

Good luck.