Rendering a video clip in 4k as test annihilated my 4930k

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DrBackwater

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Jun 10, 2013
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Howdy.

i was about to do some tests on my cpu and i thought: lets try 4k rendering. (jeez they're not wrong about how demanding it is) what the hell do these big company's use for 4k editing

The time set was 3 hours, insane but my load was 100% throttling at temperatures of 69-72 15 minutes water cooled (all cores were utilized to insanity) the video just froze, and the cpu just gave up and reverted while over clocked to 4.8

I did it again and same problem. (is it just the program or what)


So now i see why 2 xeons would be recommended.
 
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jnjnilson6

jnjnilson6

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Was able to render for hours with my i7-3770K at 5.0 GHz with 100% load under the amazing cooling of my Corsair H110 water cooling.. What's your water cooling and did it come with thermal paste pre applied? If your water cooling is not good enough, what happened to you is not that out of the normal.. You should try downclocking to 4.6 GHz, after that, to 4.4 GHz and 4.2 GHz as a last resort.. If you have problems at 4.2 GHz, then something is wrong.
 
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benjii

benjii

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Consumer hardware isn't ready for 4k yet. No graphics card can run 4k above 30fps and as you've just found out, the CPUs can't render it either. It's definitely the future, but it's ahead of its time. However, you shouldn't be having problems like that, it should just take forever! Are you sure your overclock is stable?
 
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DrBackwater

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Seriously, what was it that you're rendering, (i dunno 4k seemed tempting, but wow was i suprised) you need 2 xeon 2690's with ecc on board for 4k rendering. i used h100i water cooler, with 1866 ram, on asus formula 4

But yeah, it's amazing that 4k is what it's stated (impossible and demanding) but absolute shocker at the same time.
 
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DrBackwater

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You got that one bloody right, 4k is not ment for us mortals, but gods. (but yeah thats essentially why i did it, to test my cpu oc load, will evaluate it again since i was terrified on what my cpu stats were.) even the program i used (cyber direct pro 12 ultra) froze too.

 
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DrBackwater

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Kinda ironic given its 4930k (i think i had other programs running in back ground too while it was rendering, might given my cpu instability issues.)

God i want 2 xeons bad.
 
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jnjnilson6

jnjnilson6

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For an i7-3770K nowadays, to render for example 4096 x 3112 is like for an Intel Core i3-3220 to render 1920 x 1080, since 4096 x 3112 = 12 746 752 px and 1920 x 1080 = 2 211 840 px, which makes a 6 time difference (and of course judging by that, the 3220 is around 6 times slower than the i7-3770K, also finding that out by their Cinebench R11.5 benchmark results). So, a regular i7 nowadays will render 4096 x 3112 with the same speed, a CPU like the Core i3-3220 would render 2K - 1920x1080.
 
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jnjnilson6

jnjnilson6

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Well, if you got an unlucky chip or your voltage is not high enough, there's nothing "kinda ironic" going on..
 
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RobCrezz

RobCrezz

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Why is it ironic?

It might just mean the settings for your overclock need to be tweeked.

When you first overclocked did you test stability using IBT or similar?
 
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DrBackwater

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Sorry, just testing my memory, its not liking 1866, but yeah, the point of 4k wasn't to actually render a movie but to test it under load.

For a a dud cpu, i would need to asses all my options first. but the program i used sucks.

(It's ironic given 4930k in theory suited to video editing)
 
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DrBackwater

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My 8 gig 2133 set to 1866 just died under full load. My other trident was working like a horse on roids.

Got it replaced for new ones (sadly the shop had no 1866 tridents)

Will test my performance and do full assessment.

If the 4930k does render 4k while taking ages id be amazed, as I doubt it cannot on consumer cpu.
 
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nikoli707

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nobody uses cpus for rendering anymore. i lol when i hear people argue about this intel vs that amd cpu and one could be better for rendering etc. we have gpus that can render anywhere from 20 to 600 times as fast as your 4930k. whether you have an amd or nvidia cpu... find a program that takes advantage of the gpgpu function and use them for rendering... cpus absolutely suck at rendering and encoding compared to gpus.
 
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DrBackwater

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I think that's where amd open computer language would really exceed, or even the phi co= processor. (yeah gpu are insanely powerful)
But seems like she's stable, i even reduced the time. my faulty ram crashed the program, did 2 hour stress test and she's purring.

Hopefully this thread can end that argument as your absolutely right. (you make my poor little 4930k have no purpose)
 
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