CPU running way too hot

I'm encoding a 8 minute video in Adobe Media encoder, used the 1080p 29 fps preset for youtube, and then my PC got loud I didn't do anything for 4 minutes then checked the temps with HWmonitor and it showed I hit 87-90 temps then I checked task manager and it used 95-99 percent of my CPU... Then I stooped the encoding it immediately cooled down to 61c then 41c

What should I do? Should I limit the CPU usage? If yes how to do it?

My cpu is I7 4770(non K) With the stock cooler

I'm 65% done encoding the video, should I continue to finish it or too risky?
16 answers Last reply Best Answer
More about cpu running hot
  1. What are your ambient temps? What is your air flow scheme inside the case?
  2. Haswell runs much hotter than its predecessors. Try to clean the heat sink and fan. Also clean the residue of thermal paste and apply new thermal paste on the CPU and give it a try.
  3. Hello... 1) as a simple test, take a cover off your case and try encoding agian with HWmonitor, what are the results?
    2) Determine if your have Core parking enabled in Windows, if you do, follow the procedure to disable it, what are the results?
  4. Don't know my air flow scheme but my case is Zalman Z11 plus.
    My idlea temps usually stay at 34-40, well in summer atleast it's 21c in my home and about 26c outside
  5. Video encoding, particularly at 1080p, is very demanding on the CPU so that result is pretty normal. HWMonitor also isn't the most accurate tool out there, so take what it says with a pinch of salt.

    Whilst those temperatures are hot, your CPU will start to throttle at around 100C. This doesn't mean it will burn up, it just means that performance will be reduced.

    It's perfectly safe to carry on with the encode providing that your cooler is mounted properly and thermal paste is correctly applied, but if you're still worried, good aftermarket CPU coolers (like a 212 Evo) are quite cheap.
  6. First of all you should stop when ever you feel that your cpu is running at speeds which are not safe! YOUR CPU MIGHT MELT!,your CPUs health is worth more than a video being a bit late!,but your CPU is very powerfull!,i see some people say that there cpu which is same as yours hits 90 degrees! this is unsafe as about 100 and you melted your lovely i7 4770!,i suggest you swap out your stock cooler to something able to handle your work load!,such as a strong noctua or a liquid cooler with radiator (which case you have manages this)

    Even if your cpu doesnt 'burn' as you finish encoding but high temperatures can reduce your CPU life span
  7. My PC is quite new only 3 months old and my room is clean so I don't think there is any dust in the cpu fan or anything
  8. hmm Well I can't really go out and buy a new CPU cooler anytime soon, is there anyway to limit my CPU usage?
  9. it shows that I have 4 cores parked in the Resource monitor
  10. You can't reduce CPU usage as such, but you can reduce the amount of cores a particular application uses.

    1. Launch the Adobe Media encoder application.
    2. Launch Task Manager.
    3. Click the Processes tab and look for the Adobe executable.
    4. Right-click it and click Set Affinity.

    You'll see a window that allows you to specify the amount of cores the application uses, however, I doubt this will help. If anything, it will probably make things worse as your CPU will be working with lower resources.

    Disabling Turbo Boost within the BIOS will be a better idea.
  11. Hmm I'm lost then, what should I do? I don't want to risk anything, my best bet is to just buy a new cooler and not encode anything until I do?

    EDIT: Ah sorry bicycle_repair_man missed that you already said what cooler I should buy
  12. Best answer
    I don't believe a cooler is necessary. Like I said, HD video encoding is very CPU intensive so high temperatures are to be expected. Like FireManDude said, prolonged exposure to high temperatures can shorten the lifespan of the CPU, but it needs to be left exposed for several hours every day over a period of months. The CPU will throttle when it reaches a dangerous temperature anyway and it won't melt, despite what other people have said.

    If you're set on a CPU cooler, a 212 Evo is a good balance of price and performance. I, like many others here, have one and can recommend it. The fitting is tricky, but it does a good job.
  13. I want to clear it up, so is it safe to encode a video and have 85-90c for 10-15-20 minutes? Or I'm just shortening it's lifespan?

    I will get the 212 Evo when I get the chance anyway.
  14. Get a decent aftermarket cooler. They aren't very expensive, and can work wonders. I am using a (HUGE) €40 Scythe Ninja 3 (, and I never had any problems with my CPU. And as you can see, it blows the hot air towards left, right into the exhaust fan, as opposed to most stock coolers which blow down into the motherboard and spread the hot air around your case. Can you post a picture of the inside of your case? I'd like to get a better idea of the airflow. Maybe there are some mistakes in the placement of components.
  15. Tail_TL said:
    I want to clear it up, so is it safe to encode a video and have 85-90c for 10-15-20 minutes? Or I'm just shortening it's lifespan?

    I will get the 212 Evo when I get the chance anyway.

    It's fine.
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