i9-9900K random Throttling?

[Kreledor]

I've had some very interesting issues tonight (the upside down land) decided to mess around with a bit of clocking just cause reasons.

I've never had such an issue before, I got lucky with the lottery and got a 9900 that can hold a 5.1 clock in benchmarks and haven't had any issues but tonight, I was underclocking a bit as well as running up to the 5.0GHz profile I have saved, I feel I may have broken something? i'll get a blip on the power limit throttling coming on and the cpu locks down to 3.6GHz for a few minutes and intel ETU (I know it's not the most amazing software for cpu clocking) says it's locking down to -3.6GHz  constantly going forwards. contrary to HW monitor saying it's still running at the clock I set, not so worried about intel not reading the clock properly. More worried about the power limit turning on and off, running at 1.4v on a 4.5GHz underclock? seems a bit odd 

Note the thermal throttling and other throttles aren't changing at all.
Note this isn't idle temps etc. this is running a roughly 50% load

[Jurrunio]

The only way to tell which reading is correct is to run benchmarks and see if the scores correspond to the clock speed. I'd say XTU is more likely to be right tho because as much as I despise it for overclocking, HWmonitor can't even monitor right.

[-rascal-]

16 minutes ago, Kreledor said:

I've had some very interesting issues tonight (the upside down land) decided to mess around with a bit of clocking just cause reasons.

I've never had such an issue before, I got lucky with the lottery and got a 9900 that can hold a 5.1 clock in benchmarks and haven't had any issues but tonight, I was underclocking a bit as well as running up to the 5.0GHz profile I have saved, I feel I may have broken something? i'll get a blip on the power limit throttling coming on and the cpu locks down to 3.6GHz for a few minutes and intel ETU (I know it's not the most amazing software for cpu clocking) says it's locking down to -3.6GHz  constantly going forwards. contrary to HW monitor saying it's still running at the clock I set, not so worried about intel not reading the clock properly. More worried about the power limit turning on and off, running at 1.4v on a 4.5GHz underclock? seems a bit odd 

Note the thermal throttling and other throttles aren't changing at all.
Note this isn't idle temps etc. this is running a roughly 50% load

 

It looks like the Intel software is just bugging out.

It shouldn't ever say -3.6 GHz 

 

If the CPU is not temperature throttling, then I would see if the VRMs on the motherboard is thermal throttling, or something else that is triggering it.

 

Do you have an all-core OC of 5.0 GHz?

1.40V seems awfully high for 4.5 GHz.

Different CPU, buy my i7-8086K currently holds all-the-time all-core 5.1 GHz OC using ~1.32V.

 

IMO, better to use HWiNFO than HWMonitor + Intel XTU.

 

[Kreledor]

21 minutes ago, -rascal- said:

 

It looks like the Intel software is just bugging out.

It shouldn't ever say -3.6 GHz 

 

If the CPU is not temperature throttling, then I would see if the VRMs on the motherboard is thermal throttling, or something else that is triggering it.

 

Do you have an all-core OC of 5.0 GHz?

1.40V seems awfully high for 4.5 GHz.

Different CPU, buy my i7-8086K currently holds all-the-time all-core 5.1 GHz OC using ~1.32V.

 

IMO, better to use HWiNFO than HWMonitor + Intel XTU.

 

I kind of assumed that, that's why I wasn't too bothered by that part

 

I can't find anything saying they're getting too hot or throttling, it's running on a maximus xi extreme so full overkill as far as air cooling vrm's goes haha.

 

sure do  I usually underclock to 4.5 or 4.6 for day to day use, had it at 1.4V inadvertently from editing settings after opening the profile, but I figured it was a good spotting point cause the power limit throttling was coming on and that'd take voltage being too low well and truly out of the equation.

 

think I'll stick with my gear unless something catastrophic happens 

 

never even heard of HWiNFO cheers it looks pretty decent, I usually clock from bios but was lazy and only messing around which is why I was using intel >.<

[Kreledor]

31 minutes ago, Jurrunio said:

The only way to tell which reading is correct is to run benchmarks and see if the scores correspond to the clock speed. I'd say XTU is more likely to be right tho because as much as I despise it for overclocking, HWmonitor can't even monitor right.

yeah, I'm benchmarking now to see if everything's still running like it used to.

[WkdPaul]

* thread moved to the Troubleshooting section *

[-rascal-]

18 minutes ago, Kreledor said:

I kind of assumed that, that's why I wasn't too bothered by that part

 

I can't find anything saying they're getting too hot or throttling, it's running on a maximus xi extreme so full overkill as far as air cooling vrm's goes haha.

 

sure do  I usually underclock to 4.5 or 4.6 for day to day use, had it at 1.4V inadvertently from editing settings after opening the profile, but I figured it was a good spotting point cause the power limit throttling was coming on and that'd take voltage being too low well and truly out of the equation.

 

think I'll stick with my gear unless something catastrophic happens 

 

never even heard of HWiNFO cheers it looks pretty decent, I usually clock from bios but was lazy and only messing around which is why I was using intel >.<

 

Oh...power limit is not voltage.

I don't know if it's XTU overriding what you have set in the BIOS, but Power Limit .... is as the name implies.

The i9-9900K, by default is a "95W" chip.

If it exceeds the 95W wall, Power Limit throttling kicks in.

 

You should be able to change that in XTU or within the BIOS.

(I have my power limit max'd out...255 or 999 or something ...so I don't run into that artificial throttling)

[Kreledor]

1 minute ago, -rascal- said:

 

Oh...power limit is not voltage.

I don't know if it's XTU overriding what you have set in the BIOS, but Power Limit .... is as the name implies.

The i9-9900K, by default is a "95W" chip.

If it exceeds to puts the 95W wall, Power Limit throttling kicks in.

 

You should be able to change that in XTU or within the BIOS.

(I have my power limit max'd out...255 or 999 or something ...so I don't run into that artificial throttling)

I could've sworn I had it opened up, maybe a bios update locked it back down or like you said maybe XTU, I haven't ran benchmarks in a good 6 months so either is possible, I'll have to check it out tmrw I'd completely forgotten that was a thing