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807738 No.807738 [Reply] [Original]

Using cycles. And Blender. Everytime the preview shows any change, or in particular when rendering, CPU usage is locked at 100%. How many hours is it "healthy" to have it at such extents?

>> No.807746

>>807738
use zbrush

>> No.807747

>>807738
If its a well build desktop computer with good cooling then it doesn't matter that much.
My CPU temperature barely reaches 60°C when under full load, that temperature is not a problem.
If its a laptop with dubious cooling system...well, lets just say it will not age well.

>> No.807752

>>807738
its supposed to do that by design. You can limit the number of cores you allocate to rendering in the settings of most software, and yes including blender.

You can run your cpu at 100%, for as long as you want, as long as its under its TJMax temperature (the maximum temperature the manufacturer specifies for the chip), if you go over that you risk damaging the cpu and shutting down your computer because windows likes to protect your hardware. You'll notice you're running into problems however if you experience stuttering or graphical problems when just normal editing in the viewport or day to day actives.

>> No.807774

>>807746
>question about rendering
>use zbrush
How does it feel to be this fucking dense?

>> No.807778

watch the temperature

>> No.807805

>>807738
Thing to understand is that what kills hardware over time, be it electronics (or even car engines etc) isn't so much continuous operation as it is suffering thermal cycles.
If your computer is working at max capacity within the temperatures specified by the maker it can be expected to last you at least 10year+ doing just that.
Reason is nothing much is happening from the viewpoint of the hardware it is kept in a steady state where there is no fluctuations to it's shape.

If you power on off your computer for a few hours here and there every day you should expect it to fail a lot sooner than if you just leave it running
because when the metals and plastics heat up and cools down they will inevitably warp and shift ever so slightly, over years of doing that
sooner or later something will develop a micro fracture somewhere critical that end up causing that component to fail.

Your CPU is prob the most durable component in your computer tho so you'll prob end up breaking something else way before the CPU dies. Blown out capacitor on your mainboard or graphicscard being the usual suspect in my experience.

>> No.807806

>>807738
Get a better cooler and it wont matter.
Or a good cpu tbqh.

>> No.807866

>>807805
Are you telling me turning off the CPU so it cools down is actually worse than leaving it running?
>>807752
Where can I check in real time the temperature of my CPU when rendering in Blender?

>> No.807867

>>807866

>turning off the CPU so it cools down is actually worse than leaving it running

Yes that is exactly what his effort post spelled out and he is correct.

>> No.807871

You guys forget caps.
CPUs may ran no problem at 65°C for hours but capacitors all over the mainboard and even around the CPU degrade faster the warmer they have it.
Laptops are usually not made for heavy workloads and will fail sooner or later and if you want to use your desktop that way you should also take a look at the air temperature inside the case. Good airflow inside.
Also, you better have a good PSU. many people cheap out on PSUs and just take the cheapest one that has the minimum watts they need to drive CPU and GPU. Get at least some midrange one from a decent brand and take one that has at least 100w over your recommendations. Cheap PSUs love to pop and if you're really unlucky there's a big chance it takes some of your hardware with it.

>> No.807872

Also, cute and very well done fox

>> No.807877

>>807774
Their renderer is pretty lightweight, the anon should also try octane, clarisse, or Marmoset Toolbag.

Blender is competent, but it immediately shits the bed when you push it further than usual

>> No.807878

>>807871
I put bottlecaps below my laptop so that air can flow out well

>> No.807887

>>807738
Use GPU for Cycles if compatible. Much faster.

>> No.807892
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807892

>> No.807898

>>807866
>Where can I check in real time the temperature of my CPU when rendering in Blender?
Just google CoreTemp.

>> No.807908

>>807898
OP here. I installed CoreTemp. My CPU stays at a stable 78°C when rendering in cycles, also when I sculpt on high poly meshes. If I do this for 10-12 hours a day, how many months of life does my CPU have?

>> No.807915

>>807908
I'm sorry OP, its already on life support.
Best thing we can do is pull the plug

>> No.807920

>>807915
But the Tjmax of my CPU is 95°C

>> No.807923

>>807908
you're done for. quickly you can save yourself by switching to maya. Do it now!!!

>> No.807933

>>807908
Desktop or Laptop, you still haven't answered that question.
If its a desktop you could change the cooling system and safe the CPU and make it live much longer.
If its a Laptop, then it probably will not age well.
>a stable 78°C
>Tjmax of 95°C
Wait till its summer (if it lives that long).

>> No.808056

>>807933
Desktop

>> No.808059

I used an i7 4770 every day since 2014, shit got up to 90C like everyday. Still works fine, u don't have any thing to worry about

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