It's a new HP Elitebook 8400 G6, with low cpu usage, less than 40% reaches easily 80º and it reaches 100º sometimes. It has a late 2019 bios so undervolting is not possible and I don't want to downgrade bios because it's an business laptop, not mine.
My main question is... is it ok to reach 100º sometimes? It may be ok for Intel but what about the machine longevity?
I have tried to play with Throttlestop's Turbo power limits... default turbo boost long power max is 18 and turbo short is 51, I've tried to low turbo short to 25 to reduce heat. Not great results.
I've tried also to change speed shift from 41 (4100mhz) to lower values like 32 or 36 (sorry, I have no screenshots) and neither good results, still high temperatures with lower speeds, does it worth to reduce speed just to stay away from 100º? And also some programs don't respect the 3200 or 3600mhz limit and go to the 4100mhz max speed, not sure why does it happen.
While testing... limit reasons... core-pl2 red and later pl1 red (those 2 and thelmal and edp other always yellow). Not sure what does that mean..
Any ideas/opinions? Thanks
I have a MacBook Pro 13", with a similar CPU, and while it idles at around 35º, under load (for instance an Handbrake conversion) it easily stays above 90/95º, and it throttles down to 3.1/3.2 GHz.
There is very little you can do on those thin notebooks.
Unfortunately thats just how the cookie crumbles... HP have taken a page of out Apples book and put too powerful of a CPU inside a chassis that doesnt have good airflow or cooling to deal with satisfactory level.
I compared your 840 G6 with the newer macbook air (2020) running a slightly weaker CPU (i5-1030NG7) and that CPU still throttled in the review. I wouldnt expect your laptop to be any different. They are both the thin ultra portable style of laptop.
HP & Apple arent the only people that have done this. So have Dell & probably a few more companies. In their eyes, so long as the laptop doesnt crash because its getting too hot - its within operational parameters which means they wont accept it back for RMA. Even if the CPU is getting so hot its thermal throttling - Nobody will accept it back for RMA unless the laptop is completely dead or in a state where its not really fit for purpose.
Sadly this is just one of the nasty practises that laptop companies have picked up. They dont want you to have a well made laptop that lasts till the end of time. They want your new laptop to die within a year so you fork out money for another one. This has always been Apple's main modus operandi.
if their badly made laptops keep you coming back to them and paying for repairs - they get paid more money, That is how they do business.
::EDIT::
Alternatively, You could try repasting your CPU with a good thermal paste. The temps could drop anywhere between 5-8'c if not more.
you are right and wrong in the same post.
You are right about thermal decisions by many manufacturers (poor decisions in my opinion).
But you are wrong about durability. An Intel CPU won't die in one year because it is operating at 90º.
They are designed to operate up to 100º, and the "emergency shutdown" starts at 125/130º.
There are mechanisms in place to prevent the CPU to pass the 100º mark.
and according to many users here and on other forums, repasting isn't going to improve things most of the times.
1. is new
2. hwinfo says there are two fans, they go from 960rpm idle to 3900 load, both similar reads, but not equal
3. no, it's over a flat surface and no obstacles
4-5. I'm not sure my IT is going to do anything like that... and anyway I'm still teleworking due to covid19
But my question is, maybe there's nothing wrong with my laptop and it's a design decission to reach those temperatures to get max speed? The problem is with low time high cpu tasks, but it seems that's a big problem with a lot of laptops... (I'm new in this "world of laptops", didn't know about these problems)
Within a year? I don't hope so, and in that case there would be a lot of people at my office in trouble recovering work and files from hard disks, reinstalling new software in replacement computers, that takes time/money and maybe HP wouldn't be chosen for replacements...
Nope. Your laptop isn't going to die in one year. At least not for this reason.
There are Apple laptops operating in that range of temperatures still working after 10+ years.
Just try a little undervolt, if you can, and if you really are not comfortable with those temperatures limit the Turbo Ratio 100/200 Mhz below the maximum. You could also play with Speed Shift EPP to avoid the CPU ramping up in an aggressive way. A value around 128 should work.
It's a 15W TDP Processor.
For some reason it's hitting it's power limits, hence the red pl1 and pl2.
Try undervolting it using Throttlestop and disable turbo boost.
I wouldn't disable Turbo Boost entirely, if not as a last chance measure.
It would hit performance very badly (that CPU has a quite low base frequency of 1.6 GHz).
Maybe just reduce the all-cores Turbo Ratio from 4.1 GHz to a more reasonable 3.9 GHz.