Laptops forum

Question

Long Term Heat Limit and Turbo Boost?

by Lieniitte / June 13, 2016 7:06 PM PDT

Ello!

I recently posted about choosing a laptop and I went with one I found on sale that week that I had been looking at and had researched thoroughly, but thought it was too expensive. I have always made bad decisions with laptops in the past and am worried I have done it again.

It is a Lenovo Ideapad y700 17.3 inch with i7 6700HQ, 8gb DDR4 RAM, GTX 960M 4gb GPU, 256 gb SSD. Pretty much the same specs and almost the same model as was recommended in my previous thread about choosing.

So I turn it on today and first thing I did was to download Runescape NXT client. I didn't even download the browser I use, I wanted to see the PC's performance in a game.

About 20mins into playing the game I noticed the keyboard getting quite warm, so I downloaded Speccy and tracked the heat and other things.

I use a lap desk and I even put it up on 4 small tiny boxes so the bottom would have air, yet the heat went up to 71 degrees Celsius for CPU and 73 for the motherboard while just playing the game. Averaging at about 68 degrees.

I made it so that the fps doesn't go over 60 in the game and then the heat went down to an average of 50-55 Celsius.

The game is not one of the most demanding games and I am running nothing but the game and have a couple tabs open in browser. Checking the Core speed, all 4 cores run at an average of 3100 Ghz, and that just seems outrageous for it to turn on turbo boost when the game really doesn't need it. So to test it out I went into some setting and set the CPU max performance to 90% instead of 100% and indeed, the average core speed then was about 2200 GHz and the temp averages went down to about 48 degrees. But I was told that it is a bad idea to put CPU performance below 100% maximum. So I put that back up.

So trying to find other options for the pc to stop using turbo boost when the game does not require it, making my pc hotter than it should be, I found that turning battery saver mode on helps. Indeed, all 4 core speeds started to run slower from 700- 1900 jumping around a lot. Heat also went down, especially when not charging the laptop, average temperatures were at about 37-41 degrees Celsius. When charging this went up to about 44-46 degrees.

Thing is, I do not want to be using battery saver mode all the time. When researching this pc, I found multiple reviewers saying that the heat didn't go above 99 degrees Fahrenheit much, and that's 37 Celsius. Mine was at that heat at it's lowest. I did the Stress level tests that Cpuid offers and let it run for about a minute and the temperatures didn't go over 77 Celsius. Though the heat i felt coming from it was automatically noticeable.

Thing is, reading on many forums, some say that this is really good for a laptop. That many get much hotter than this. But I simply saw reviewers saying it has a great cooling system and doesn't go over that 37 Celsius much, only a bit even when gaming. And they were playing much heavier power games than me and had higher frame rates going than me. The game worked perfectly with higher frame rates, it's the heating I worried about.

So my questions are these, I'd appreciate answers to as many as possible. I have 30 days to return the pc, no questions asked.


1. Is it true that I shouldn't set my CPU performance maximum to 90%? Right now it is running on Balanced mode, 75% brightness, Runescape open and 3 tabs in Chrome and the heat is averaging about 62 Celsius for CPU, motherboard and GPU, all about the same.

2. Why does my CPU turn on turbo boost when the things I am doing do not require extra speed? I figured that it would only go up to high speeds causing extra heat when it actually needs it, but it does it all the time except when on battery saver mode. I figured it's always better to have a processor etc a little better than what you really need, more flexibility then, but I guess I was wrong. People are always saying things run better with the better hardware and it does, but it shouldn't be using all of it's power all the time.

3. Is this amount of heat normal for the little that i am doing? I figured this laptop would have a much better cooling system. I am not using much at all and there are days where I will sit for hours doing about this same thing and I worry that having it heat up long term like this will cause problems. I haven't even downloaded Lightroom yet.
I know the heat isn't terrible, but for what I am doing, I have seen people say that's a lot and if it's already heating up unless in battery saver mode, what will happen later?Other people seem to be running the same pc with higher power games and less heat.

Please consider that I know nothing of all this stuff. I am simply worried because the heat can be felt when typing, it's really warm to the touch when just typing and the lapdesk is hot so much that my legs feel the heat. This laptop wasn't cheap. I don't want to have to buy one even more expensive, though I will if that would be the solution. The laptop is fast and I like it a lot, it has many features I am very happy with. The only things I am having issues with is heat worries and turbo boost turning on (also causing the fan to turn more, when in reality it shouldn't have to because when on battery saver, the game I am playing runs just as smoothly, yet there's less heat. So the game really does not demand such high CPU speed and heat!)
I've seen on different forums that 70 degrees is really good for when doing heavy gaming, pushing your pc, but this is how hot t gets when it shouldn't demand so much. I'm worried about trying Lightroom and Cities Skylines now. I don't want to ruin the pc from overheating.

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Clarification Request
Added note.
by Lieniitte / June 13, 2016 7:38 PM PDT

I forgot to mention that doing the exact same things did NOT overheat the loan pc I had from the shop and that one had a 4th gen processor, less RAM; integrated graphics.. was nowhere near as good as this new pc, yet it did not require all that power to run the same things with the same specs. Why would a more powerful pc use all of it's power to run things that a much worse pc runs just fine?

All Answers

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Answer
I read the review on the Y700
by R. Proffitt Forum moderator / June 14, 2016 6:43 AM PDT
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Scratch my post, rephrasing the most important question.
by Lieniitte / June 14, 2016 12:45 PM PDT

Indeed, I DID read many reviews before buying the laptop. I also watched many video reviews where they even played games that require much heavier performance than what I do and they ran perfectly fine and the reviewer stated that the heat didn't go much over 99 F or 37 C even for those games. Or the one you posted sayin 50-60 C at stress levels. And the video reviewers had much more Fps going than I put mine down to in what game I was playing. I had done research on this pc before I even posted my first thread about choosing pc's. I only didn't add it with the rest of the ones in that post because I figured this was too expensive for me so it was out. Then it went on sale, I only had to wait a week or so to actually get the pc. Happy

That review you posted is a 15 inch version, the 17 inch is a bit different. Though more or less the same I guess in most things. The display has the most difference.
Also that review states that temperatures reach 50-60 C in a stress test. Yet mine goes to 77 C and normal play with not so demanding things goes up to above 70 when not on battery saver, reducing CPU max performance, etc. But I read in many places that what mine runs at is good for a laptop and I shouldn't expect that quality for cooling. So, even though I would like this pc to run as cool as reviewers have stated, scratch that and I'll phrase it a different way.

My heat issue would not be such an issue if the computer ran at a speed that it NEEDS to run at for what I am doing on it, instead of running at top speed ALL the time. I have read a lot that 77C under the stress tests is great performance and absolutely nothing to worry about.

I apologize, I was very tired when writing the first post and might have not said things in the most clear way possible. To sum it up, the CPU stress test heat went up to 77 C, and that is about the same as it does when I am doing things that don't require it to run at such high speeds. The core speeds were also around the same under the stress test as they are when playing that not too demanding game. So what I conclude from this is that it runs at stress speeds even when it doesn't need to unless I turn on some battery saver mode things and remove the charger.

I feel that it should not be like this. Especially because the game I played runs exactly as smoothly when on battery saver. That proves that it really doesn't NEED the speed and by using so much power from the CPU etc, it is causing my laptop to heat up more than it should with what I am doing. The core speeds at normal, not very demanding use run at turbo boost speed, 3100ghz-3400 ghz. Yet the gameplay is exactly as good when on battery saver mode they run at 800ghz to somewhere over a thousand. So it should not be accessing all that speed, thus heating up my computer when it doesn't need to.

I will now install Lightroom and Cities Skylines and see how that works, what it does.

But what I would like to know is if it's normal for a CPU, GPU, motherboard etc to run at top speeds all the time, even when it's not required to. I will be doing more demanding things with the laptop, hence why I wanted a more powerful one, but I don't want it to run so hot while not doing those very demanding things, and I don't feel that it should. A modern computer should be smart enough to use only the speeds etc. it need for the task it is currently doing.

Also, I am unable to use a desktop since I have back issues so I can't sit at a desk for more than 30minutes.

Thank you for reading Happy

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There's a review on the 17 inch somewhere.
by R. Proffitt Forum moderator / June 14, 2016 7:59 PM PDT

Try to find it at notebookcheck. My mistake on posting the 15 inch model.

"A modern computer should be smart enough to use only the speeds etc. it need for the task it is currently doing."

Sorry I don't think we're there yet.

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How weird..
by Lieniitte / June 15, 2016 8:38 PM PDT

I'll believe you when you say we aren't there yet, but I do find that hard to believe. We have AI's, VR, robots that do surgery on humans, with human assistance of course (just like a laptop needs human assistance to guide it for tasks), yet a laptop is incapable of discerning at what speed it needs to run to do a given task? I mean... that just doesn't sound right to me. Grin

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Just last week.
by R. Proffitt Forum moderator / June 15, 2016 9:48 PM PDT
In reply to: How weird..

I was on my Windows 7 PC and this error pops up.
http://i.imgur.com/6yzoeIo.png

And now on my spiffy new W10 laptop same error and it claims Windows 8 in similar text.

The industry is not about quality and what can be done.

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That exact problem happened to my old pc
by Lieniitte / June 16, 2016 3:40 AM PDT
In reply to: Just last week.

But that pc had many problems.

So I talked to a few different computer store specialists here and they said that the heat my pc is running at is not as it should be for what am doing and I can bring it in and call it "Dead On Arrival" and get a new one and if the problem happens to the replacement then it means it's a defect in all of them and I'll either get a completely different one or they'll fix this one. So, awesome. Grin

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A review from the same model size
by Lieniitte / June 14, 2016 7:14 PM PDT
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Answer
thermal system for gaming
by spruce11 / June 16, 2016 10:46 PM PDT

as the games are getting more and more complicated and need massive computing power, the thermal system usually plays an important role on if the game can be fully performed. Many gaming laptops are most emphasizing the independent thermal system on GPU and CPU to get the most sufficient cooling control plus the fans. As I know, MSI, ROG, and Alienware especially mention such design in their official webpage and MSI even shows how the internal metal pipes look like. I don't have the impression that Lenovo is good at this requirement.

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