5 ms·

X1 Carbon CPU frequency update

41 points by preek 8y ago

deft0nes 8y ago
Is this only applicable for the 6th generation?
- deleted 8y ago
  [deleted]
imeron 8y ago
You can't trust Apple these days to build a decent laptop :).
- suprfnk 8y ago
  What does this have to do with Apple?
  - g105b 8y ago
    This would get so much more attention if it were Apple. Here, we just brush it off as one of those things.
martinsuchan 8y ago
You could try undervolting the CPU with Intel Extreme Tuning Utility (XTU) - lowering the voltage by ~0.1V decreases the amount of heat produced, which leads to less CPU throttling.
- yipbub 8y ago
  Any potential drawbacks?
  - noir_lord 8y ago
    Drop it too low and the machine may crash under heavy load, it won't (with a high degree of probability) cause any permanent issues (it's somewhat safer than over volting).
    - Bishonen88 8y ago
      at the offchance that someone knows the answer to my problem: when undervolting everything works fine for me until I lock my PC(Windows). It then proceeds to restart itself. Am I undervolting too much or is this something else?
- remlov 8y ago
  Please correct me if I am wrong. Intel Extreme Tuning Utility (XTU) seems to be Windows only and I was unable to locate a Linux version. For Intel Haswell generation CPUs and newer I've had great success using the following utility under Linux to undervolt my Dell Precision 5510: https://github.com/tiziw/iuvolt https://github.com/tiziw/iuvolt
crispyambulance 8y ago
So does that mean that Linux is obeying the TDP specs more closely than Windows [which allowed die temp to reach 97C]?
- userbinator 8y ago
  According to the Intel link in the article the max Tjunction is 100C so Windows is pushing it closer to the max. I'm not too sure about now (especially in this age of forced obolescence), but it used to be that Intel CPUs would automatically throttle down if they started overheating, with no software required, and AMDs would just let it burn: https://www.youtube.com/watch?v=BSGcnRanYMM https://www.youtube.com/watch?v=BSGcnRanYMM
  - Grazester 8y ago
    That was a very long time ago in the early 2000's before the AMD K8 and up were introduced.
stefan_ 8y ago
The 90s are over, surely the OS can't force the CPU into overheating.
- crispyambulance 8y ago
  Yeah, I think there is a lot going on with TDP, the OS, the workload, die temp, cooling, voltage rails and power profile. Can anyone explain how CPU throttling works in real life?
aogl 8y ago
I have always seen Lenovo as being quite good with Linux, but these sort of things make me wonder if I should be placing more interest in Dell once again.. Was just about to purchase a new Lenovo to run Linux on.. Can anyone recommend what they think would be a good route to take at the moment? Any new good Lenovos or other coming out later this year?
- scalesolved 8y ago
  I've used one of their lower end thinkpads (s540) and have gotten 4 years of use out of it doing Java work with vms and running a ton of things without issues on Ubuntu. I've had next to no problems the whole time, second monitors,webcams,printers,sleeping have all worked straight out of the box. I've flown upwards of 50 times with it during this period, dropped it, spilt water on it and it has survived it all (almost!). The only reason I'm even looking at replacements is I spilt a full litre of water on the keyboard and a few keys have died forever. If you're looking for a good development machine I'd recommend the following ThinkPad lines: * X range: Smallest and lightest, maxes out at 16gb ram (new X1 extreme doesn't but it is $$$$). * P range: Most power in terms of CPU/Ram/GPU whilst being fairly portable. * T range: IMO the sweet-spot between X and P. Portable but still with enough grunt, the T480 takes up to 32gb ram.
  - clircle 8y ago
    Another ancedote: I used a thinkpad X220 throughout grad school and absolutely loved it (except the screen resolution). This year I decided it was finally time to move on... but to what? I heard all the new thinkpads have bad keyboards, and I'm not going to buy a dell since I generally despise Dell keyboards and trackpoints. I bought a refurb T460. Love it. The thoughts that it has a "bad" keyboard are totally overblown. This thing has a great keyboard, screen, trackpoint. The whole package is good IMO. Opting for the T460 instead of the T460s, I'm able to enjoy keys that are slightly taller, and I can use my laptop without listening to the fans spinning on very much. I run Debian Stable and this machine is fast as hell and problem free.
  - sam0x17 8y ago
    Love the X230. Been using it as my daily driver for a year. Before that I've been using X series since 2010. X40, X60, X230.
nixpulvis 8y ago
Mooman called it, only took a day tho: https://news.ycombinator.com/item?id=18080209 https://news.ycombinator.com/item?id=18080209
GrumpNerd 8y ago
I'm glad I'm not fussing with Linux on the desktop. Far too expensive.

41 points by preek 8y ago

deft0nes 8y ago

Is this only applicable for the 6th generation?

deleted 8y ago
[deleted]

imeron 8y ago

You can't trust Apple these days to build a decent laptop :).

suprfnk 8y ago
What does this have to do with Apple?
- g105b 8y ago
  This would get so much more attention if it were Apple. Here, we just brush it off as one of those things.

martinsuchan 8y ago

You could try undervolting the CPU with Intel Extreme Tuning Utility (XTU) - lowering the voltage by ~0.1V decreases the amount of heat produced, which leads to less CPU throttling.

yipbub 8y ago
Any potential drawbacks?
- noir_lord 8y ago
  Drop it too low and the machine may crash under heavy load, it won't (with a high degree of probability) cause any permanent issues (it's somewhat safer than over volting).
  - Bishonen88 8y ago
    at the offchance that someone knows the answer to my problem: when undervolting everything works fine for me until I lock my PC(Windows). It then proceeds to restart itself. Am I undervolting too much or is this something else?
remlov 8y ago
Please correct me if I am wrong. Intel Extreme Tuning Utility (XTU) seems to be Windows only and I was unable to locate a Linux version. For Intel Haswell generation CPUs and newer I've had great success using the following utility under Linux to undervolt my Dell Precision 5510: https://github.com/tiziw/iuvolt https://github.com/tiziw/iuvolt

crispyambulance 8y ago

So does that mean that Linux is obeying the TDP specs more closely than Windows [which allowed die temp to reach 97C]?

userbinator 8y ago
According to the Intel link in the article the max Tjunction is 100C so Windows is pushing it closer to the max. I'm not too sure about now (especially in this age of forced obolescence), but it used to be that Intel CPUs would automatically throttle down if they started overheating, with no software required, and AMDs would just let it burn: https://www.youtube.com/watch?v=BSGcnRanYMM https://www.youtube.com/watch?v=BSGcnRanYMM
- Grazester 8y ago
  That was a very long time ago in the early 2000's before the AMD K8 and up were introduced.

stefan_ 8y ago

The 90s are over, surely the OS can't force the CPU into overheating.

crispyambulance 8y ago
Yeah, I think there is a lot going on with TDP, the OS, the workload, die temp, cooling, voltage rails and power profile. Can anyone explain how CPU throttling works in real life?

aogl 8y ago

I have always seen Lenovo as being quite good with Linux, but these sort of things make me wonder if I should be placing more interest in Dell once again.. Was just about to purchase a new Lenovo to run Linux on.. Can anyone recommend what they think would be a good route to take at the moment? Any new good Lenovos or other coming out later this year?

scalesolved 8y ago
I've used one of their lower end thinkpads (s540) and have gotten 4 years of use out of it doing Java work with vms and running a ton of things without issues on Ubuntu. I've had next to no problems the whole time, second monitors,webcams,printers,sleeping have all worked straight out of the box. I've flown upwards of 50 times with it during this period, dropped it, spilt water on it and it has survived it all (almost!). The only reason I'm even looking at replacements is I spilt a full litre of water on the keyboard and a few keys have died forever. If you're looking for a good development machine I'd recommend the following ThinkPad lines: * X range: Smallest and lightest, maxes out at 16gb ram (new X1 extreme doesn't but it is $$$$). * P range: Most power in terms of CPU/Ram/GPU whilst being fairly portable. * T range: IMO the sweet-spot between X and P. Portable but still with enough grunt, the T480 takes up to 32gb ram.
- clircle 8y ago
  Another ancedote: I used a thinkpad X220 throughout grad school and absolutely loved it (except the screen resolution). This year I decided it was finally time to move on... but to what? I heard all the new thinkpads have bad keyboards, and I'm not going to buy a dell since I generally despise Dell keyboards and trackpoints. I bought a refurb T460. Love it. The thoughts that it has a "bad" keyboard are totally overblown. This thing has a great keyboard, screen, trackpoint. The whole package is good IMO. Opting for the T460 instead of the T460s, I'm able to enjoy keys that are slightly taller, and I can use my laptop without listening to the fans spinning on very much. I run Debian Stable and this machine is fast as hell and problem free.
- sam0x17 8y ago
  Love the X230. Been using it as my daily driver for a year. Before that I've been using X series since 2010. X40, X60, X230.

nixpulvis 8y ago

Mooman called it, only took a day tho: https://news.ycombinator.com/item?id=18080209 https://news.ycombinator.com/item?id=18080209

GrumpNerd 8y ago

I'm glad I'm not fussing with Linux on the desktop. Far too expensive.