i5 13400F on AlderLake

[N/A]

run Prime95 or AVX2 specific load to see more power and you should check if it is stable after the under voltage with prime95 anyway. Use SVID adaptive mode for offset, but I guess you can only set SVID or VRM to set the offset, not both.

 

[AlirezaGhanbari]

It shouldn't be actually capable of consuming this much power in normal circumstances. 13400F peaks at 80 to 95 W depending on silicon lottery with limits removed at stock voltage.

With some UV, it could shrink to ~75 W under HEAVIEST loads.

thanks alot.
i want to only set 0.05v on the Actual VRM Core Voltage and not change the Global Core SVID, can I do it? or I have to change both because I don't have offset mode for the Global and it's only Auto Or Manual

run Prime95 or AVX2 specific load to see more power and you should check if it is stable after the under voltage with prime95 anyway. Use SVID adaptive mode for offset, but I guess you can only set SVID or VRM to set the offset, not both.

yeah i only can do one on offset and the other on on manual.

is it ok to just only do the Actual VRM Core Voltage and leave the Global one to Auto?

 

[N/A]

Yes you leave on AUTO. but I'm not aware of the intricacies.

I'm sure you won't have problems. That's such a cool running chip. Loads of fun if you has an external clock gen.

Oh no, it's degrading!!! Well maybe at 1.66v.

The way it works is once it degrades it needs more voltage, that is. if you run 1.66 with prime95 for a certain amount of time who knows how long. if it's a game it takes longer. this means that Vmin is now migrating to a higher threshold. And that is exactly what intel says. some CPU experience higher than 1.55V VID and that affects Vmin. It just gets beaten to a pulp but still works.

 

[AlirezaGhanbari]

HI,
new Update
i UV my cpu to -1.5
temps are 12 to 15c lower. everything seems Ok and I'm getting 20W less Power with the same Performance.
but I don't know if it's safe or not I'm so sensitive I know it....
i ran a 30 min test and no sign of crash or anything.
in R32 i Droped about 300 Point but since i don't care about that, i don't think it effects my Editing and rendering with PR that much.
but overall. is -1.5 UV safe?

 

[Beginner Macro Device]

is -1.5 UV safe?

Of course. The only question is is it stable. Run more tests and if it doesn't crash under any load then you're golden. In case it crashes you should increase your voltage until it stops misbehaving. It's that simple.

 

[AlirezaGhanbari]

Of course. The only question is is it stable. Run more tests and if it doesn't crash under any load then you're golden. In case it crashes you should increase your voltage until it stops misbehaving. It's that simple.

Hi, yeah -1.5 was safe, temps are around 65 with 85W Power Usage.
it works prefect and I don't know if it's just my feeling or not but my PC feels Smoother in PR after this changes.

i reduce my PL1 to 85W Just to make some room if it needed but the PL2 is on the max.

one more thing: should I be worry about the CPU Current limit max on 511? because the intel profile is saying it's gonna put it on 307A but it won't change it the setting.

 

[ShrimpBrime]

Yes you leave on AUTO. but I'm not aware of the intricacies.

The way it works is once it degrades it needs more voltage, that is. if you run 1.66 with prime95 for a certain amount of time who knows how long. if it's a game it takes longer. this means that Vmin is now migrating to a higher threshold. And that is exactly what intel says. some CPU experience higher than 1.55V VID and that affects Vmin. It just gets beaten to a pulp but still works.

It's not likely the OP's 13400F is going to degrade anytime soon. My chip on the other hand maybe. But when I fire it up occasionally for DryIce, it seems to require the same voltage every time.

This screen shot a few weeks old. Looks like it took less v-core for similar clocks. But this load is much different. The DryIce helps keep the v-core down.

I would have to do lots of beat downs and testing across very many different types of loads in order to come here to you and claim degradation. It requires more than just testing Prime 95. And it would have to be testing over a long period of time such as 5 to 10 years. By then, I'd hope to have upgraded the CPU before I was to concern myself deeply about CPU degradation.

 

[iameatingjam]

I'm sure you won't have problems. That's such a cool running chip. Loads of fun if you has an external clock gen.

Oh no, it's degrading!!! Well maybe at 1.66v.

Don't go putting bad ideas in his head dude.

Hi, yeah -1.5 was safe, temps are around 65 with 85W Power Usage.
it works prefect and I don't know if it's just my feeling or not but my PC feels Smoother in PR after this changes.

i reduce my PL1 to 85W Just to make some room if it needed but the PL2 is on the max.

one more thing: should I be worry about the CPU Current limit max on 511? because the intel profile is saying it's gonna put it on 307A but it won't change it the setting.

Is this not bothering anybody else? A 13400 shouldn't have an iccmax of 511.

OP: have you tried manually inputting a value?

 

[AlirezaGhanbari]

Don't go putting bad ideas in his head dude.



Is this not bothering anybody else? A 13400 shouldn't have an iccmax of 511.

OP: have you tried manually inputting a value?

should i even be worry?
because it's a Locked CPU I don't think it can do damage to it self.

 

[iameatingjam]

should i even be worry?
because it's a Locked CPU I don't think it can do damage to it self.

Well I do suppose you're not even on raptor lake.... and the cpu isn't even getting all that much wattage. And current is one part of watts, so maybe its really not getting all that much so it doesn't matter? It just seemed... alarmingly high to me. And I think the reason mobo manufacturers pumped up the current on raptor lake is because they had been doing it on every gen before that too. Still I'd like to hear somebody else's take on this.

You guys think this 13400 at 511 iccmax is a problem? OP says he's on an intel profile. But hwinfo says it is indeed 511.

I mean, its not even raptor lake it just seemed... so high for that little chip. Or is it kinda irrelevant in this case due to low power draw?

EDIT: OH I just remembered alder lake iccmax didn't go up to 511.. it only went up to 255. Didn't it? Now was that a hardware or software limitation?

 

[N/A]

Well if you want to be precise 88 Watts / 1 V = 88 iccmax

 

[iameatingjam]

Well if you want to be precise 88 Watts / 1 V = 88 iccmax

Isn't that just the current? Its not the iccmax. Its icccurrent. As in its currently the current. lol. jk. idk.

I just want to make sure its safe for iccmax to be so high on this cpu. Surely volts aren't always going to be 1.

Yeah I guess it should be. Since even at 1.5, it wouldn't be that much. If 88watts is all you're drawing. Its probably just me being paranoid from having that cpu die even at low voltage. Even though who knows, might not have even been related to power delivery.

 

[ShrimpBrime]

Isn't that just the current? Its not the iccmax. Its icccurrent. As in its currently the current. lol. jk. idk.

I just want to make sure its safe for iccmax to be so high on this cpu. Surely volts aren't always going to be 1.

Yeah I guess it should be. Since even at 1.5, it wouldn't be that much. If 88watts is all you're drawing. Its probably just me being paranoid from having that cpu die even at low voltage. Even though who knows, might not have even been related to power delivery.

He won't pass 148w with a 10% swing unless he manually sets higher v-core. And being a locked cpu, it won't apply past max VID anyways; whatever that may be. Perhaps could force constant v-core through LLCmax, but I don't see the point.

Under-volting the cpu is useless because he has adequate cooling.

The original thread was something about a bios update and NOT utilizing the full 148w in the meanwhile trying to under-volt because of some degradation hyper fear, now this being the third or forth thread about the same system.

I'm not certain what all the hyper fear is about. He's running one of the lowest end models available. If it blows up from absolutely no overclock ever, then he gets a free cpu through RMA either through the retailer or Intel.

No the IccMax won't matter. He needs to just leave all the shit on auto and set XMP and play the video games and be normal and happy and stop making threads over and over about it. (my 2 pennies.) Wants to run cool and save power, use windows power saving power plan and save power with power savings enabled. This is a very most basic system setup. There's nothing to really do to it. Put cpu in, turn on, play games. This aint that complicated.

 

[iameatingjam]

He won't pass 148w with a 10% swing unless he manually sets higher v-core. And being a locked cpu, it won't apply past max VID anyways; whatever that may be. Perhaps could force constant v-core through LLCmax, but I don't see the point.

Under-volting the cpu is useless because he has adequate cooling.

The original thread was something about a bios update and NOT utilizing the full 148w in the meanwhile trying to under-volt because of some degradation hyper fear, now this being the third or forth thread about the same system.

I'm not certain what all the hyper fear is about. He's running one of the lowest end models available. If it blows up from absolutely no overclock ever, then he gets a free cpu through RMA either through the retailer or Intel.

No the IccMax won't matter. He needs to just leave all the shit on auto and set XMP and play the video games and be normal and happy and stop making threads over and over about it. (my 2 pennies.) Wants to run cool and save power, use windows power saving power plan and save power with power savings enabled. This is a very most basic system setup. There's nothing to really do to it. Put cpu in, turn on, play games. This aint that complicated.

Hahaha yeah I was a little confused with what the problem was at one point too. Is my cpu going to die? Should I reduce my power limits? I've reduced my power limits, why am I throttling? I've increased my power limits. How do I increase them more?

I just remember intel saying 'under no circumstances should iccmax exceed 400' and that kind of stuck with me. Though that was for raptor lake cpus, which this is technically not. But I still wanted to be sure. And yeah nobody was talking about EXCEEDING the max iccmax ( that I'm aware of). Was just kind of alarmed at how high it was (at least appearing) out of the box (511). But I guess other limits (voltage, frequency, w/e else) make it not really matter?

I do swear the whole not being able to hit 148w thing happened before he was playing around with undervolting though (Idk I wasn't part of that). The timeline is unclear like you said... cause of all the multiple threads ( though its only 2 you big exaggerator).

EDIT: No nevermind actually you're totally right, I clicked "See more" and yeah, there's more than 2, lol.

 

[AlirezaGhanbari]

Hahaha yeah I was a little confused with what the problem was at one point too. Is my cpu going to die? Should I reduce my power limits? I've reduced my power limits, why am I throttling? I've increased my power limits. How do I increase them more?

I just remember intel saying 'under no circumstances should iccmax exceed 400' and that kind of stuck with me. Though that was for raptor lake cpus, which this is technically not. But I still wanted to be sure. And yeah nobody was talking about EXCEEDING the max iccmax ( that I'm aware of). Was just kind of alarmed at how high it was (at least appearing) out of the box (511). But I guess other limits (voltage, frequency, w/e else) make it not really matter?

I do swear the whole not being able to hit 148w thing happened before he was playing around with undervolting though (Idk I wasn't part of that). The timeline is unclear like you said... cause of all the multiple threads ( though its only 2 you big exaggerator).

EDIT: No nevermind actually you're totally right, I clicked "See more" and yeah, there's more than 2, lol.

Hi. yeah, I'm a little bit worried about the situation with the intel and that's why I opened 3 threads.

1 - the problem is solved.
i5 13400 is strange because I did use it on my friend's build that we assembled yesterday. even with 50c on 100% Usage, the CPU decides to Go down from 100W to 65W Which is PL1 and lowers the CLock from 4.1Ghz to 3.4Ghz.

it's weird but the fix is to set the PL1 to 100W and Timer Window to more than 48, this way the CPU is Cool and it won't drop at all.

I did this on my PC and it's going blazing fast with the UnderVolt it's on 45c on heavy load. no worries.