overview for Thrasherop

XTU Per-core tuning not working in c/[email protected]

[–] [email protected] 1 points 10 months ago

Like set the 4 core active to 6.1? I think that makes it so that 4 cores will try to go to 6.1, not just the best cores. Is there no way anymore to just OC the best 2 cores?

2

XTU Per-core tuning not working (alien.top)

submitted 10 months ago by [email protected] to c/[email protected]

2 comments fedilink

I'm very confused on how XTU works. No matter what I do to the performance per-core tuning nothing is changed. The only way I can make a frequency change is by using Active-Core tuning. I want to specifically target certain cores for overclocking, not a general "6.1GHz".

Additionally, even though XTU reports 1 active core, it always uses 4+ active core setting in the Active-Core tuning. Which means if I want my 14900k to reach 6GHz I need to force at least 4 cores to run at 6GHz.

I want to try to get my best P cores higher than 6GHz. But in order to modify frequencies I need to make 4 cores go higher.

What am I missing here? I've attached an example below. There is only 1 active core, but its not using the clock speed for 1 active core.

https://preview.redd.it/bv25n5m8k61c1.png?width=1915&format=png&auto=webp&s=e9b1d6eeeb6b97aa14c16c4300a880870b3a5dc5

Stock 14900k crashes in Cinebench in c/[email protected]

[–] [email protected] 1 points 10 months ago (1 children)

For me it seemed to be the excessive current draw that my chip was taking. Lowering the power limit back to stock (253watts) is what fixed it for me. Look at the comment thread with u/LightMoisture for more information.

If you are wanting the chip to be able to pull more wattage (e.g. if you're Overclocking or trying to get the best benchmark scores) then increasing LLC also worked for me. It seems like the instability came from Vdroop, so raising LLC allowed my system to draw 300+ watts consistently. DON'T run this as daily driver though. High wattage reduces the lifespan of the chip due to "electromigration".

Hopefully that helps!

Stock 14900k crashes in Cinebench in c/[email protected]

[–] [email protected] 1 points 10 months ago

How can I find the default voltage frequency curve?

Stock 14900k crashes in Cinebench in c/[email protected]

[–] [email protected] 1 points 10 months ago

They are unlimited, and it does thermal throttle on all cores. When doing so, power draw is at ~345 watts.

I am confused on why pure power draw matters. Hypothetically, it's heat that causes it to thermal throttle. If it was a thermal issue, wouldn't the whole system shut down, not just a cinebench crash?

Why does power draw inherently cause issues?

Stock 14900k crashes in Cinebench in c/[email protected]

[–] [email protected] 1 points 10 months ago

I haven't done either. I'll try CMOS. Everywhere one said to only update the BIOS if it is known to fix this issue, and none of the updated bios seem to address this at all.

0

Stock 14900k crashes in Cinebench (alien.top)

submitted 10 months ago by [email protected] to c/[email protected]

12 comments fedilink

hello all,

I recently purchased a 14900k and I am running it on Gigabyte AORUS Elite AX mobo. I have 6800 MHz RAM from GSkill and 4090 as well.

I'm having an issue where, with all stock settings, Cinebench r23 always crashes on a multicore run (screenshot attached). However, single core completes just fine. I also don't have stability issues anywhere else. I can complete a 3Dmark timespy extreme run just fine with XMP 6800 enabled. I can play Halo Infinite with 6Ghz all cores + XMP without any other changes (e.g. no voltage changing) without any crashes at all. But with Cinebench my system isn't ever stable on stock settings.

I saw this other post that seemed to be the same, but the actual error log from Cinebench is different. I do notice that I share a mobo with this user. This is the Cinebench error:```Exception

{

	ExceptionNumber = 0xC0000005

	ExceptionText = "ACCESS\_VIOLATION"

	Address = 0x00007FFBE514B3FD

	Thread = 0x00000000000027F0

	Last\_Error = 0x00000000

}

```

I know there probably isn't much good information in this post, so I will try to answer questions as quick as I can. I'm new to overclocking and dealing with instability so I don't really know where to go from here to achieve stability. Did I just loose the silicon lottery or something? Or are Gigabyte mobos trash for 14th gen? All help is greatly appreciated!

(as a side note, I'd love to learn actual overclocking. All the guides that I can find seem to only go into the detail of increasing Performance Active-Core tuning. So if any of you know of a resource where I can learn what everything does [e.g. AVX2 ratio offset or any of the other knobs in XTU] then I would be very grateful).

EDIT:

I'm continually experimenting, and I'll continue to post information as I get it.

- Not all of the Passmark CPU tests complete correctly either, so there is an issue there.

- In XTU, I boosted the voltage offset to +.05 and cinebench finished. I then returned the voltage back to .000 and cinebench was able to complete again. So I'm even more confused now.

https://preview.redd.it/k63faopenm0c1.png?width=2560&format=png&auto=webp&s=b9eb1ecc047d4dcd22eb5e5366acac981caab219