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19 Posts

01-10-2016

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Yoga 370 running hot

2017-06-16, 0:02 AM

I've had my new Yoga 370 for just a couple of days, and the first thing I note is that the fan runs a lot, and the laptop generates quite a lot of heat - and that's before I've installed much.

 

I opened it up and replaced the original 128 GB with a 512 GB Samsung 951, so most testing is with that, but the fan ran high with both.

 

Using Speccy, I find that with just Firefox and one tab open, the system temp started at 70, then fell to 55-65.

HWMonitor reported (Firefox, 3 tabs) core temps of 60-80, with overall system temp at 70.

Now, it's settled to 45-50, so it's not entirely consistent.

 

Advice on what an appropriate temperature would be?

My wife had this same problem with her Yoga 260, and got it replaced with one that caused no problems, so I may have to go that route as well.

 

On a side note, I've removed the back exactly once, to replace the SSD. I planned to swap them back to see if that changed anything, and I find that one of the screw heads is already stripped. I tightened all screws no more than finger tight, so I'm at a loss to explain this. Any tips on getting the screw out?

 

I just tried running the Lenovo Companion hardware tests. Got a BSOD first time. Second time, the test slowed to a crawl on the stress test. After over 30 min with the CPU at 80 C, I gave up. Surely it's not meant to take that long. (I made it to 50% done).

 

 

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86 Posts

05-21-2011

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  • Message 2 of 16

Re: Yoga 370 running hot

2017-06-16, 18:24 PM

few of our users reported two of the same issues - fan rans more than we hope, (others said theirs are normal, no louder than the other ThinkPads) one particular one is very load, our tech shop is going to open some to check whether there is anything defective.  when we opened one of the "normal" one, one of the screw is stripped also, our technican had to use special tool to pull it out.  we assume some problem in the assembly line.

 

the other hardware related issue we found so far, got a handful of those thinkpad yoga 370 have left mouse button issue, (the physical one for TrackPoint.  the touchpad is fine, that's what the affected people have to resort to for time being) sometimes won't register clicks, it is frustrating for users when it is inconsistent.  we are waiting for users to turn those in so we can open them up to check, may be loose wire or something.

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19 Posts

01-10-2016

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Re: Yoga 370 running hot

2017-06-16, 19:26 PM
Thanks. I'm taking mine in to a depot tomorrow. It's not just that the fan is loud, but that it actually runs hot.
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86 Posts

05-21-2011

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Re: Yoga 370 running hot

2017-06-17, 9:00 AM

are those temperature readings just spikes or stay at that levels for extended period of times? what's the external temperature during the time?

 

we have not fully quatitified the machine yet, still got 3 weeks before we mass deploy this model.  from initial tests, (you can find our test notes easily just google it), roughly, the fan kicks in about ~45°C (cpu package/core/lenovo EC sensors) to 2000-3000 rpm to about 60°C.  it goes to 3000-4500rpm 60-80°C.  it goes full throtlle 80-90°C, seems that's lenovo by design limit, it is conservative to not go over that (some other machines we tested go all the way to 99°C, 1C from Tj max, which is very hot), all the power, current, thermal limits kick in to keep it cool (CPU, GPU, memory speed etc. clocks down)  if you plot the cpu core frequency, power consumption (15W for the U series processor), and temperature out with hwinfo or intel XTU, you can see it fluctuates a lot.  80°C spikes for short period is not that uncommon even on low utilitization, it does drop back down after a bit, skylake, kaby lake processors seem to switch frequency a lot.  the internal temperature is not that big a concern for us.

 

externally, FLIR thermal imaging shows it hardly goes above 47°C on the bottom, even cooler on top even running 100% cpu benchmark stress tests like linpack or openGL.  only slightly above the thinkpad yoga 260, which is even cooler.

 

believe or not, we hope it actually goes a bit more aggressive and run just a tad hotter if you can squeeze a bit performance out.  the design limit seems to put a cap on the i7-7600U we have, it doesn't look like it is allowed to run 100% capacity just to keep it cool, we have seen 7500U that runs faster.

 

we have not played with the new intelligent cooling settings to switch to high performance yet, may be that can alter the behavior a bit.

 

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42 Posts

06-30-2009

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  • Message 5 of 16

Re: Yoga 370 running hot

2017-06-17, 20:43 PM

I don't have a way to measure the laptop's external temperatures. Ambient temperatures are warm, but not hot. Internal temps have been a mix of short spikes - 70-80, sustained peaks - 60-70, and an undulating base of 40-60. But that's with virtually nothing running. The fan is on most of the time, and noisy. Given that my wife had this same issue with her Yoga 260 (and had it replaced with one that does not do this), I suspect a problem.

 

Another issue - it's very slow, especially for an i7-7500 with an NVMe SSD. I also transfered 15 GB from a USB drive, and it took a good 10 min, whereas my wife's similar Yoga 260 did it about a minute. And with mine, the USB got very, very hot. So, something's clearly wrong.

 

I took it in to the depot this morning, and a) they suggested immediately that I return and exchange it, and b) they couldn't get out the stripped screw either. I'll be calling Lenovo on Monday (post-sales only works during the week, apparently).

 

Given that the whole reason I bought a new laptop is that my old X201s gets too hot and shuts down, I don't want a laptop that seems crippled by heat issues from the start. I hope they can send me one that works properly.

 

 

X201s, 4GB, W10
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86 Posts

05-21-2011

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  • Message 6 of 16

Re: Yoga 370 running hot

2017-06-18, 12:34 PM

sorry to hear that about the SSD heat problem also.

 

we have the stock 512GB MZVLW512HMJP-000L7, that Samsung PM961 (OEM spec. rated at 2800/1600 MB/s sequential read/write 260 KIOPS random reead/write), is quite impressive, whopping 658MB/s, 12GB files copy in 20 seconds from external SanDisk Extreme 900 USB-C drive.  (only if you put a SM961 in yourself is faster)  it is way faster than Toshiba XG4 some models have.

 

BTW, if you want fast, we even got the thinkpad yoga 370 working with an Akitio Node eGPU with a GeForce 1080 inside, got 178fps furmark 720 preset out of it, instead of 10fps with the internal Intel 620.  make some users with other machines very jealous.  (it is not supported by default with the stock Thunderbolt software, Akitio new firmware bypasses the limitation)

 

 

 

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4 Posts

02-25-2016

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  • Message 7 of 16

Re: Yoga 370 running hot

2017-06-19, 1:27 AM
I just got a TP Yoga 370 to replace an X201 about a week ago. So far, I've noticed that the fan seems to run a lot, but I haven't noticed any heat issues.

I did have the same heat issues as you with the X201 and had the planar / fan replaced about 2 years ago. about 2 months ago It overheated and shut down. I got a can of air and blew out the fan vents and it hasn't stopped since.

I intended to watch heat issues on the Yoga 370 pretty closely and will continue to do so.


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42 Posts

06-30-2009

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  • Message 8 of 16

Re: Yoga 370 running hot

2017-06-19, 1:44 AM
I replaced the thermal paste on my X201s a couple of years back. It did solve the problem, but was such a hassle that I'd rather not do it again. I'll try the vents. Can't hurt at this point, and I do need something until I get a new Yoga.
X201s, 4GB, W10
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3919 Posts

12-02-2007

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  • Message 9 of 16

Re: Yoga 370 running hot

2017-06-24, 9:17 AM

Hello,

 

I have a pre-release version of the Yoga 360 hardware, which I believe shipped with an i3-7100U CPU, 128GB Samsung CM871 SATA SSD and 4GB Hynix(?) DDR4 SO-DIMM.  I later upgraded the unit to a 256GB Intel 600p NVMe SSD and 16GB Crucial DDR4 SO-DIMM, and re-installed the OS using the restore media I created from within Windows 10.

 

While I'd imagine the components I'm using have less thermal impact than the i7 version and a 512GB NVMe SSD, I can't help but wonder if the problems might be at last in part due to a missing or outdated driver.

 

Have the latest versions of the Lenovo Power Management Driver and Lenovo System Interface Foundation been installed onto the Yoga 370?  If so, did those make any difference?

 

Regards,

 

Aryeh Goretsky

 



I am a volunteer and neither a Lenovo nor a Microsoft employee.

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42 Posts

06-30-2009

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  • Message 10 of 16

Re: Yoga 370 running hot

2017-06-24, 12:33 PM
I opened up the back of the X201s and blew compressed air around, with special attention to the fan. Just a little bit of fluff came out, but I've seen a remarkable difference in temperature. Thanks for the suggestion. I'd thought about this, but hadn't expected anywhere near such a big change. If I hadn't already bought the Yoga, I'd be thinking I could wait on a new laptop until the Retro comes out.
X201s, 4GB, W10
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