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Blade 14 Temperatures: Open vs. Closed

Discussion in 'Systems' started by figrin1, Feb 20, 2018.

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  1. figrin1

    figrin1 Well-Known Member


    I recently bought an external monitor, and I'm incredibly happy with how well my setup looks/works when my Razer Blade is plugged and closed.

    I, like many others, started to wonder how this would affect the temperatures of the CPU and GPU. Will it be throttling if I game while the lid is closed? Will it affect the life of the system? I found a lot of opinions here on the forum and out on reddit. "It will be fine with the lid closed since it vents out the back." "It will overheat because it vents through the keyboard." "Only play with the lid closed if you lift the back of the machine." etc. etc. ..but no one was providing any actual numbers.

    So I decided to test things out for myself today.


    I knew that I wanted to test a variety of games, since I figured some really demanding titles would probably push my system up to max temps regardless of whether it was open or closed (and that wouldn't provide good information about which was cooler). So I chose a game that I would consider "light" (Hearthstone), "middleweight" (Borderlands 2) and a heavyweight (Kingdom Come: Deliverance), and monitored my temperatures using MSI Afterburner while playing.

    For each game I played with the lid open, closed, open with the back lifted, and closed with the back lifted. I kept track of where the temperature seemed to settle for the CPU and GPU, and if it didn't settle I averaged out the range. Then I added up the temperatures for the CPU and GPU to produce a score.

    Also, please note that I've undervolted both my CPU and GPU. Still I think the relative temperatures between open and closed would be similar for systems running at stock voltages.

    Bars measure the sum of GPU and CPU temperature (C). Lower is better.
    As it turns out, having the lid open did lower temperatures, but only by a very small amount (a few degrees for the CPU and GPU). Curiously, temperatures went up when I opened the lid to play Hearthstone, though I think that this was a fluke. Playing Borderlands and Hearthstone, the temperatures never exceeded 75 degrees C for either component. What this says to me is that it really shouldn't matter if you play games like these with the lid open or closed. I didn't feel the need to test these games with the back lifted--I just moved onto the meatier game: Kingdom Come.

    A screenshot taken from my Blade. Aren't these little computers amazing??

    Where things got more interesting was with Kingdom Come. It's a really demanding game, and I keep settings at a mix between medium and very high to maintain ~60FPS. In the case of Kingdom Come, the GPU temperature reached into the 80's even with the lid open. With the lid closed, the GPU began to thermal throttle about 15 minutes in. the temperature slowly climbed all the way to 91, Afterburner reported the GTX 1060 reaching its thermal limit, and clock speeds went down slightly to maintain temperature. There wasn't an apparent drop in performance, but I was putting undue wear on my graphics card.

    This was where it became apparent how big a difference opening the lid and lifting the back makes. Lifting the back of the laptop reduced temperatures by around 9 degrees C for both the CPU and GPU. With the laptop closed and back lifted, temperatures were comparable to having the lid open. And having the laptop open and back lifted reduced temperatures even further: the GPU maintained a cool 78 and the CPU hovered around 74.


    Gaming with the lid closed won't really matter if you aren't running demanding games. But if you're firing up new, triple-A titles, you might want to think about opening that lid and lifting the back, or at least just lifting up the back to increase airflow. Otherwise you're likely to experience reduced performance and increased wear-and-tear on your pricey computer.

    Would love to know what everyone uses to lift the back (I was using my cell phone, but would love to pick up a new stand!)
    Last edited: Feb 21, 2018

    MS_OLDHORSE Well-Known Member

    wow, some good review
    figrin1 likes this.
  3. Lafar

    Lafar Well-Known Member

    Wow. This is amazing.

    I'm running a triple monitor setup with an ultrabook right now (gonna upgrade when the new Blade comes out). It's sitting inside one of these. None of the vents are blocked.
    I ran some rudimentary Cinebench tests, and yeah, I didn't notice much of a difference with it being open or closed. In fact, having it docked rather than laying flat on my table probably helped out with airflow.

    I do know Razer sells a laptop stand for the Blade Stealth, but having an upright stand really does make things look sexy (especially if you don't need the laptop's screen).
    pancholr likes this.
  4. Joikansai

    Joikansai Well-Known Member VANGUARD

    No one provided actual numbers because on Razer subreddit or here some Blade 14 users had reported with Windows Update, his machines turn on when the lids closed on his backpack for longtime and he got after that screen issue because the machine was hot. Assuming from that, maybe beside the reason of being late inside the backpack, his Blade was overheating. For 2k Laptop with dGPU inside, and i think the airflow also come out through the keyboard (it could be the reason of screen damage), unless you use stealth/Macbook Pro 13 or ultrabook (that doesn’t have dGPU) or Blade 14 using the core (dGPU is deactivated), which all aren’t using Optimus technology i won’t recommend it, using on close lid for a long usage.
    Last edited: Feb 20, 2018
  5. ThirdDegreePun

    ThirdDegreePun Well-Known Member

    Love this scientific process and writeup, doing a great service to the community and it's something I myself have tested but to a much lesser extent without any solid data. Thanks so much, and welcome to the community!
    figrin1 likes this.
  6. FearLezZ1990

    FearLezZ1990 Active Member

    Wow, that´s something I also wanted to know since I´ve bought a monitor and the razer laptop stand for my blade 14. Thank you very much!!!
    figrin1 likes this.
  7. BeefJerky

    BeefJerky New Member

    The reason for his screen failure has nothing to do with the lid being closed, and everything to do with it being inside of a closed space with nowhere for the exhausted heat to go. Even if the laptop lid was open, in an enclosed space like that backpack, it still would be overheating.

    As far as how it vents (at least for the 2017 model), it absolutely does NOT vent through the keyboard. If you simply look at the rear of the laptop and hinge, you can see how it vents. You can also feel where it vents by feeling for the hot air with your hands. The exhaust vent is on the rear of the chassis. When the lid is opened, the air exhausts up between the chassis and the hinge. When the lid is closed, it exhausts out the bottom between the chassis and the lid.

    And, that brings me to another thought regarding open vs closed temps. When the back of the laptop is raised and the lid is closed, the exhaust is very near the intake fans on the bottom. I wonder if separating those two areas with something might keep some of the warm air from going back into the intake fans and result in a bit cooler temperature?

    BTW, thanks for testing this figrin1!
  8. Joikansai

    Joikansai Well-Known Member VANGUARD

    Do you have the Blade on you? Just run anything like benchmark that push the ventilator put your hand at Keyboard (touch) and around 1 cm separate, on touch you’ll feel air out and on separate you’ll feel thermal, yes it doesn’t blow like bottom vent area, still you don’t want to close the lid when the Fans work hard. It’s like “hair drying” your screen if the lid closed so it may damage the screen.
  9. BeefJerky

    BeefJerky New Member

    This is something I've tested quite thoroughly with my 2017 blade. There is absolutely no air blowing out from the keyboard, though the keyboard does warm due to hot components underneath it.

    Again, when the lid is open, the air is exhausted from the space between the chassis and hinge on the top. When the lid is closed, the air is exhausted from the space between the chassis and hinge on the bottom. I only have personal experience with the 2017 blade, however, looking at pictures of older ones, they appear to have the same hinge and ventilation. Here's a picture of the 2014 blade: https://www.custompcreview.com/wp-c...4-inch-gaming-notebook-custom-pc-review-6.jpg

    It shows the same exhaust "space" between the chassis and hinge that my 2017 has. This is where the air exhausts from when the lid is open. When the lid is closed, that space closes, but one opens up on the bottom to let the air out that way.
  10. Joikansai

    Joikansai Well-Known Member VANGUARD

    This holes brings the air to the keyboard even not huge. It’s your freedom using it closed though, it’s your Blade.
  11. BeefJerky

    BeefJerky New Member

    I'm not seeing a hole to the keyboard in the pictures. However, it does show very clearly the exhaust vents I was talking about. The fans exhaust the air through the vent that is along the back of the chassis by the hinge. When the lid is open, it directs the air upward. When the lid is closed, it directs the air downward.
  12. Joikansai

    Joikansai Well-Known Member VANGUARD

    It’s not big holes like ventilator grill on the bottom but the air from the vent will also be pushed to those keyboard area, even closed with parts and the air directed downward, still it will go through on max Fans activity because the grill (output areas) isn’t big enough to throw all air that produced. It will come through also with the heat to your screen if it closed. I can even feel the warm screen on my Blade Stealth with a single Fans CPU after playing cpu demanding games with the lid closed, after that I’m playing always on open lid. With 2 fans on Blade 14, I could already imagine the bad.
  13. BeefJerky

    BeefJerky New Member

    OK, you're experience differs from mine, that's fine.

    I'm curious if anyone is interested in testing my theory about separating the exhaust on the bottom from the intake when the lid is closed and comparing temps vs no separation. This is something I could test, but it would probably be a week before I'd have a chance. OP, any interest in testing this idea?
  14. Joikansai

    Joikansai Well-Known Member VANGUARD

    Wow, do you mean by opening the Blade right? Hmm I open it when its Guarantee over, like my Razer Edge. Anyway This are previous similar threads with this, but @figrin1 made a number that we can see and consider ourselve if we can use it open or close.
  15. BeefJerky

    BeefJerky New Member

    I never said anything about opening the blade. The OP did some tests with the lid closed and open, as well as with the back raised and not raised. When sitting flat with the lid closed, the rubber strip separates the exhaust air from the intake. With the back raised, there is no longer anything to separate the exhaust air from the intake air. I was simply suggesting we test with the lid closed, back raised and and something under the laptopin between the exhaust and the the intake. I think this would give us another interesting data point in addition to the other measurements the OP gave us.

    Looking at those links you gave, there are no actual measurements or data points like the OP provided. They provide speculation at best. In addition, most of those answering seem to have a misunderstanding of how the exhaust in the blade works. I've already explained how it actually works, so I won't go into that again.
  16. Joikansai

    Joikansai Well-Known Member VANGUARD

    I see, I thought OP meant on person (challenging), so it means Original Poster? You should PM him then. About the past posts, from my understanding the conclusion is not closing the lid, the keyboard area made a heat that could increase Systems overall thermal, despite the air go through keyboard, I think someone also mentioned it not only me.
  17. figrin1

    figrin1 Well-Known Member

    You're just thinking something to make sure the air from the exhaust doesn't get sucked back to the intake, like a piece of cardboard or something separating the two when the back of the laptop is lifted?
  18. BeefJerky

    BeefJerky New Member

    Exactly! I don't mind testing it myself, but due to my current work schedule, it will probably be at least the end of the week before I have a chance to.
  19. RicoTheYellow

    RicoTheYellow New Member

    THanks for the Numbers really helped me ))) any idea about PUBG and warhammer 3 is it comparable to the Kingdom Come: Deliverance or more demanding ?>
  20. figrin1

    figrin1 Well-Known Member

    Those games are going to be more comparable to Kingdom Come since they're pretty graphically intensive.
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