topic Re: About Cpu instability on 14400f in Mobile and Desktop Processors

About Cpu instability on 14400f

Marcos7 — Mon, 05 Aug 2024 11:15:24 GMT

Can the 14400f have instability issues too or Just the unlocked cpus?
I noticed some strange fram drops while gaming ,idk It its normal or can happen with more basic 14 gen cpus.

Re: About Cpu instability on 14400f

n_scott_pearson — Mon, 05 Aug 2024 16:49:06 GMT

All desktop CPUs could exhibit the problem.

Re: About Cpu instability on 14400f

CoolBook — Mon, 05 Aug 2024 20:16:16 GMT

No, it would be highly unlikely for your CPU to be affected by the overvolting issue.

There are some claims that all (65W and up) CPUs could be affected, but I doubt there are actual examples of that.

Perhaps your GPU is too slow? Not enough RAM? Or perhaps that CPU is not powerful enough?

Re: About Cpu instability on 14400f

Marcos7 — Mon, 05 Aug 2024 20:27:35 GMT

So ,How is better way to check If i have faulty unity?

Re: About Cpu instability on 14400f

Marcos7 — Mon, 05 Aug 2024 20:28:16 GMT

4060ti +16gb ddr4 3200mhz

Re: About Cpu instability on 14400f

aCNuser — Mon, 05 Aug 2024 22:39:09 GMT

try Prime95 small FFTs stress test, if that fail, then it must be the processor failure

Re: About Cpu instability on 14400f

Marcos7 — Tue, 06 Aug 2024 02:34:11 GMT

One hour is ok to let test runing?

Re: About Cpu instability on 14400f

aCNuser — Tue, 06 Aug 2024 02:52:24 GMT

yes,if there is no error in 1 hr, the cpu should be ok, then you can try large ffts,its to test ram, if both is fine and no error,i think it will be less likely to be the cpu and ram

and out of my curiousity could you provide a CPU-Z screenshot? I heard that 14400f should have two kinds, and it may could be identify by steeping in CPU-Z, for B0, that is new cores of 13/14th gen, it should have 2mb L2 cache per Pcore on the chip, and been cut to 1.25mb per Pcore, for C0, it is like 12th gen die and have 1.25mb L2 cache per Pcore natively.

if your cpu is B0 steeping, i think it may （only my personal speculate）related to recent "instability issue"

reference:(chinese language video)

https://www.bilibili.com/video/BV1cK421a7v2/

https://www.bilibili.com/video/BV19J4m1W7db/

Re: About Cpu instability on 14400f

aCNuser — Tue, 06 Aug 2024 02:54:29 GMT

when running Prime 95, you can see the taskmanager to see if there is a core have no load for over a minute, and there is a error info in a thread of P95, then it means that in this core it reports error, you could try manually down the frequency and it will help

Re: About Cpu instability on 14400f

CoolBook — Tue, 06 Aug 2024 08:06:22 GMT

@Marcos7

Instability would not cause dropped frames.

The application might quit unexpectedly or you get BSOD and/or hard reboots.

There would probably be a higher risk of defects with most other components than that CPU.

That because of the low frequencies and voltages it uses.

As always, just make sure that your CPU has healthy temperatures and voltages.

Re: About Cpu instability on 14400f

Marcos7 — Tue, 06 Aug 2024 11:02:52 GMT

Morning, i Will send the prints of cpuz, yesterday i got delta force hawnk ops freeze and crash to desktop, but not Just me some people complaning about crashes too, the game is in Alpha state, so after that i play for 4 hours Max settings avainable in game with no issues 144fps my screen is ultragear 144hz, o Will make another prime test today to ,check when testing prime with How monitor opened CPU Max tempo reachd 56°c and 1.245v but o noticed some times P cores drop frequency to 3.296 but CPU never exeed 65w

Re: About Cpu instability on 14400f

CoolBook — Tue, 06 Aug 2024 11:12:56 GMT

@aCNuser

Do you mean a single tread Prime 95 test? Otherwise you might not see those ST boost frequencies and voltages.

Re: About Cpu instability on 14400f

CoolBook — Tue, 06 Aug 2024 11:15:14 GMT

Looks like your CPU is limited to 65W, so the MT Prime test might not stress the cores that much.

Voltage seems a bit high if that was for 3.3GHz though?

Re: About Cpu instability on 14400f

aCNuser — Tue, 06 Aug 2024 13:53:29 GMT

emmm, i do found the failure core using this method, and i am doing it with all thread simutanously, if you want to try it with single thread, you may need to manually set the core software running in taskmanager i guess

Re: About Cpu instability on 14400f

CoolBook — Tue, 06 Aug 2024 14:03:42 GMT

I suppose that you are overclocking or undervolting with a "sync all cores" configuration?

This whole instability debacle is most likely caused by the single/few core boost. Those have exponentially higher voltages for slightly higher frequencies.

CoreCycler or similar tools might work well to verify ST/gaming stability.

Re: About Cpu instability on 14400f

Marcos7 — Tue, 06 Aug 2024 15:12:27 GMT

I guest i Will sent It back to Intel ,for warranty ,its too much work for a entry level CPU so o dont want spend time in that, Thanks for the help !

Re: About Cpu instability on 14400f

Marcos7 — Tue, 06 Aug 2024 15:16:19 GMT

Only default settings ,only thing in changed in BIOS is the resisable bar GPU , this category of entry level CPU suposed to work fine even with stock cooler ,im using a ak400 for this one Max tempo 49c even on tests .

Re: About Cpu instability on 14400f

CoolBook — Tue, 06 Aug 2024 15:20:32 GMT

Personally I think replacing the CPU and finding out that you still have the same issue would be way too much work.

How do you know it is the CPU?

Re: About Cpu instability on 14400f

Marcos7 — Tue, 06 Aug 2024 18:56:21 GMT

My Full Spec

Re: About Cpu instability on 14400f

aCNuser — Wed, 07 Aug 2024 09:33:43 GMT

it is C0 so your cpu seems using 12th gen CPU die, and 14400f don't have a super high clock speed,so i think it is less likely to be affected

for your reference, i am using 13900k and i have already applied the RMA, even i have already down it to5.0ghz, it still blue screen or just frozen in 1 sec if i start running prime 95 small ffts

i think if there is no problem running that test it should be very safe to use, this test have much more heavier stress than almost any other test