12900k temps.

[p0mpous]

Even on a 360mm AIO I had to undervolt mine a little to keep it cool.

[Monk]

No you didn't.

You just have no idea what are safe temperatures and think that lower with no need is better.

[p0mpous]

Αναρτήθηκε αρχικά από Monk:

No you didn't.

You just have no idea what are safe temperatures and think that lower with no need is better.

No I did Cinebench it was hitting near on 100 an I'm not happy with that when I can get 15c lower than that for the same clock, also sometimes wondering into the 80s in games is also not good.

More evidence that you know nothing about hardware.

I undervolted mine by 0.100v to be exact, love how you are now telling me what I did and didnt do with my hardware, you really are a special kind of person.

[MancSoulja]

Αναρτήθηκε αρχικά από pompous:

Αναρτήθηκε αρχικά από Monk:

No you didn't.

You just have no idea what are safe temperatures and think that lower with no need is better.

No I did Cinebench it was hitting near on 100 an I'm not happy with that when I can get 15c lower than that for the same clock, also sometimes wondering into the 80s in games is also not good.

More evidence that you know nothing about hardware.

I undervolted mine by 0.100v to be exact, love how you are now telling me what I did and didnt do with my hardware, you really are a special kind of person.

Explain to us all what will happen to your CPU at 80c that wont happen at 70c considering you know so much about hardware.

[p0mpous]

Αναρτήθηκε αρχικά από MancSoulja:

Αναρτήθηκε αρχικά από pompous:

No I did Cinebench it was hitting near on 100 an I'm not happy with that when I can get 15c lower than that for the same clock, also sometimes wondering into the 80s in games is also not good.

More evidence that you know nothing about hardware.

I undervolted mine by 0.100v to be exact, love how you are now telling me what I did and didnt do with my hardware, you really are a special kind of person.

Explain to us all what will happen to your CPU at 80c that wont happen at 70c considering you know so much about hardware.

Well in the short term not much, it only really likely to damage the lifespan of said hardware but also there is another factor from this, if something generates more heat you will often have to put more effort into cooling said thing, this will often involve running fans at a higher RPM making more noise and why generate more heat when you can use a lower voltage at the same core clock and run cooler.

You can also get things like thermal runaway in same cases, the hotter it gets the lest efficient it gets so the more power thus making more heat, you can also over time of expanding and contracting due to heat fluctuation damage items, in reality there is no reason to run hotter than you need to.

We arent just talking short spikes up to 80-90 we are talking about sustained periods and those add up over time, you also have electromigration.

[Heaven Fall]

100C is too hot but the CPU can handle this

Is better to have around 80C at maximun

Some question:

-It is a Good AIO?
-Enough thermal paste?
-Good quality thermal paste?
-Did you mount correcty the pump on you CPU ?
-Did you mount correctly you fan?

[p0mpous]

Αναρτήθηκε αρχικά από Ḩع Ꭿ℣₳ η ℱ Ꭿ ȴ:

100C is too hot but the CPU can handle this

Is better to have around 80C at maximun

Some question:

-It is a Good AIO?
-Enough thermal paste?
-Good quality thermal paste?
-Did you mount correcty the pump on you CPU ?
-Did you mount correctly you fan?

Well I do now its no taking in 1.4v.

[_I_]

100f is fine
100c is too hot

80c is a good target for 24/7 oc

the cpus by default will turbo to what they can, then throttle when they hit their thermal limit

https://ark.intel.com/content/www/us/en/ark/products/134599/intel-core-i912900k-processor-30m-cache-up-to-5-20-ghz.html
Processor Base Power = 125 W
Maximum Turbo Power = 241 W

basic rules for manual oc

oc -> load test
temps high + stable = lower v core
temps low + stable = raise cpu multi
temps low + unstable = raise cpu v core
temps high + unstable = lower cpu multi
-> repeat

until its are stable at around 80c with full load
then stop

but thats a 16 core cpu, 8 with ht
if you load test with ibt or prime95, it will max all cores/threads, very unrealistic real world loads, unless you do very high core workloads

[p0mpous]

Αναρτήθηκε αρχικά από _I_:

100f is fine
100c is too hot

80c is a good target for 24/7 oc

the cpus by default will turbo to what they can, then throttle when they hit their thermal limit

https://ark.intel.com/content/www/us/en/ark/products/134599/intel-core-i912900k-processor-30m-cache-up-to-5-20-ghz.html
Processor Base Power = 125 W
Maximum Turbo Power = 241 W

Yeah mine was eating like 265w or something.


It hits about 80c in Cinebench with a small OC and an undervolt.

[p0mpous]

Αναρτήθηκε αρχικά από _I_:

100f is fine
100c is too hot

80c is a good target for 24/7 oc

the cpus by default will turbo to what they can, then throttle when they hit their thermal limit

https://ark.intel.com/content/www/us/en/ark/products/134599/intel-core-i912900k-processor-30m-cache-up-to-5-20-ghz.html
Processor Base Power = 125 W
Maximum Turbo Power = 241 W

basic rules for manual oc

oc -> load test
temps high + stable = lower v core
temps low + stable = raise cpu multi
temps low + unstable = raise cpu v core
temps high + unstable = lower cpu multi
-> repeat

until its are stable at around 80c with full load
then stop

but thats a 16 core cpu, 8 with ht
if you load test with ibt or prime95, it will max all cores/threads, very unrealistic real world loads, unless you do very high core workloads

In general the most CPU intensive with I do is stream, I do go for ultimate FPS over resolution so I have a 360hz 1080p screen and that does tend to hit the CPU harder.

[based af]

Mine pulls 278W before it hits the temp limit in Prime95. This is on a Liquid Freezer II 360 with a fairly low ambient (it's cold over here in Finland!)

CB23 pulls around 240W and temps are around 90C.

All in all, I wouldn't be worried about the temps. The limit is at 100C for a reason and Intel have sensors placed all over the die to keep it from frying itself.

That being said, if you want to undervolt, there's tons of ways to accomplish it. You can try less LLC and sync AC and DC loadlines to your selected LLC level, you can try keeping LLC at default and instead use the V/F curve.

I haven't bothered touching any CPU settings yet, I've just overclocked my RAM so far. But I might do so soon.

[p0mpous]

Αναρτήθηκε αρχικά από based af:

Mine pulls 278W before it hits the temp limit in Prime95. This is on a Liquid Freezer II 360 with a fairly low ambient (it's cold over here in Finland!)

CB23 pulls around 240W and temps are around 90C.

All in all, I wouldn't be worried about the temps. The limit is at 100C for a reason and Intel have sensors placed all over the die to keep it from frying itself.

That being said, if you want to undervolt, there's tons of ways to accomplish it. You can try less LLC and sync AC and DC loadlines to your selected LLC level, you can try keeping LLC at default and instead use the V/F curve.

I haven't bothered touching any CPU settings yet, I've just overclocked my RAM so far. But I might do so soon.

I just used intels tuning software, just put a 0.100v undervolt and set all the p cores to 5.1 and it seems to be doing good, havent bothered with the E cores.

Ran cinebench for a good hour or so no issue, had no instability whatsoever in games and hasnt been doing anything strange, Jayztwocents did a good video on it.

In CB23 it was pulling a good 260 watts or so.

Havent touched my ram as from what ive seen in my use case you see very little benefit from going any fast in terms of ram speed.

[76561198343548661]

pompous , i believe you completely .

[Monk]

So it hit 100c temporarily in a crazy stress test... A load it won't usually be under in normal use and still not throttling.

Yep, no need to undervolt the temps were fine, also, my statement was entirely accurate.

With that said, your framing suggested alot more than a 0.1v from what I am guessing was stock voltage now, so, more of a tweak and a custom overclock, not really an undervolt.

What speeds and voltages are you actually on now?

Oh and I do hope you went with a ddr4 mobo and didn't waste money on early ddr5.

[p0mpous]

Αναρτήθηκε αρχικά από Monk:

So it hit 100c temporarily in a crazy stress test... A load it won't usually be under in normal use and still not throttling.

Yep, no need to undervolt the temps were fine, also, my statement was entirely accurate.

With that said, your framing suggested alot more than a 0.1v from what I am guessing was stock voltage now, so, more of a tweak and a custom overclock, not really an undervolt.

What speeds and voltages are you actually on now?

Oh and I do hope you went with a ddr4 mobo and didn't waste money on early ddr5.

Also hitting low 80s in games.

Went with DDR4 for one simple reason actually, couldnt find any good RGB DDR5 ram that fit my build in terms of looks, current running all P cores at 5.1, so thats a minor under clock of the first core as it was set to 5.2, its mainly p cores 4-8 that I have OC'd.

Peak voltages I am seeing since I set an offset is around the low 1.3s, the highest is 1.319 to be exact, before doing this it would wonder into the 1.420 range.

Also again a good reason to do this is the fact that now I can keep the CPU cool with the fans on quiet and the pump on a lower speed, its a win win, lower temps and lower noise.

To give you an idea in Cyberpunk in some areas the CPU was hitting the mid 80s, now it barely goes above 70.

Like I said a small OC with a slight undervolt, kinda copied what Jayztwocents did in his video.

[Guydodge]

not sure how hot the 12900k runs but im with you even low 80s sound high to me
again i dont own one.but hitting 80c+ in game with a small OC doesnt sound right
i would double check all cooling aspects mount,case,fan placement.. ect
also make sure your AIO pump is set to 100%.i find it hard to believe it runs
that hot with a small OC.you shouldnt have to undervolt