22 Replies Latest reply: Jul 8, 2011 4:40 PM by Bill Gehrke RSS

    CPU Temperatures High

    alexdejesus Community Member

      Just curious to know what is normal temp for CPU to be running. It is consistently above 90 deg celsius when AME is exporting H.264 from PPro timeline. No crash or failures. Temp returns to 40 degs afterwards.

       

      System is newly built about 2 weeks ago:

       

      Intel Core i7-2600k                 

      ASUS P8P67 Pro B3              

      ASUS GTX 570 Graphics         

      4 x 4 GB RAM DDR3 Kingston      1600 HyperX T1

      850W Pwr Supply Thermaltake

      2 x 2TB Barracuda XT SATA III   1 for Captured media, and 1 for cache, pagefile, previews

      1 Barracuda 1TB SATA II           for System OS

      InWin BUC Chassis                  slots for 5 drives - 4 of them hot-swap

      Windows 7 Ultimate           

      Matrox MX02 mini             

      Production Premium CS5.5

        • 1. Re: CPU Temperatures High
          Harm Millaard Community Member

          Normal temps under load would be in the 60's, so either the cooling paste was not properly applied or the CPU cooler was not correctly installed or the airflow in the case is seriously disrupted. Which cooler is it?

          • 2. Re: CPU Temperatures High
            ECBowen MVP

            How high are you clocking the turbo and what is your CPU voltage set to?

             

            Eric

            ADK

            • 3. Re: CPU Temperatures High
              alexdejesus Community Member

              I should have said - no overclocking. I have not set any CPU voltage - whatever is default or stock. The ASUS settings panel gives sensor readings. What should I look for?

              • 4. Re: CPU Temperatures High
                alexdejesus Community Member

                @ Harm. I installed the cooler that came with the processor. It had the film of paste already pre-applied. I do have a CoolerMaster V8 cooler, but have not installed it yet. There is a tube of paste in the box. Maybe I can apply some? I wanted to see how it worked stock before adding anything.

                 

                The case is fairly large InWin BUC with 3 fans, front, top, and back. Large vent in side panel.

                • 5. Re: CPU Temperatures High
                  ECBowen MVP

                  The Retail heatsink/cooler that comes with the CPU is really ineffective. You definitely want to switch to a 3rd party such as the V8. yes you want to apply some of the Thermal paste for the V8 cooler.

                   

                  Eric

                  ADK

                  • 6. Re: CPU Temperatures High
                    alexdejesus Community Member

                    Okay, with the Cooler Master V8 heatsink installed, the same export brings the CPU to 60 deg C, and even cooler with the fan turned up to max. Idle temp is 38-40 deg. Definite improvement!

                     

                    I'm still a bit concerned that CPU runs at 100% throughout the export. Export time about the same as before. I would feel better if CPU did not work so hard. Now, if I were to overclock it, would it still max out? only run faster? What is the ideal safe clock speed?

                    • 7. Re: CPU Temperatures High
                      Harm Millaard Community Member

                      You would want to have your CPU close to 100% utilization, but there are other factors here.

                       

                      With CPU, GPU, memory and disks all in play here, the weakest point in your setup usually is the component that is the most heavily taxed. Going uphill with a fully loaded car is generally not taxing on the brakes and only on the engine, but going downhill may be very taxing on the brakes. So it depends on what you are doing and what other components you have.

                       

                      Close to 100% utilization is desirable, as long as temperatures are in check and now in the 60's there is nothing to worry about.

                       

                      Overclocking the i7, a beginners guide

                      • 8. Re: CPU Temperatures High
                        alexdejesus Community Member

                        Thanks for the OC guide, Harm. I didn't dare try it with CPU running so hot to begin with, but now I feel I can press on.

                         

                        First, I will run the benchmark now to establish a baseline for myself. Then, I'll overclock to improve on it.

                        Rendering and export speeds are my immediate concern.

                        • 9. Re: CPU Temperatures High
                          Bill Gehrke MVP

                          If you are running 100% usage encoding the h.264 chances are that you are using MPE software as opposed to MPE Hardware Acceleration.  We do not know what h.264 format or even you source format but it sounds high to me.

                          • 10. Re: CPU Temperatures High
                            alexdejesus Community Member

                            @Bill: No, I'm definitekly using hardware acceleration. H.264 from HDV timeline to YouTube 720p preset

                            • 11. Re: CPU Temperatures High
                              Jeff Bellune ACP
                              If you are running 100% usage encoding the h.264 chances are that you are using MPE software as opposed to MPE Hardware Acceleration.

                              H.264 encoding and decoding is always done by the CPU.  Hardware MPE is never involved in the decoding or encoding of H.264.

                               

                              I'd be disappointed in Pr and my system if I didn't get 100% CPU usage during export to H.264, since that means the CPU is working as hard as it can to get the job done.

                               

                              -Jeff

                              • 12. Re: CPU Temperatures High
                                Bill Gehrke MVP

                                Any specific reason that you are not using the GPU/|MPE Hardware Acceleration?  It does speed things up.

                                 

                                Jeff,  I just encoded a piece of my HDV (1080i) in CS5.5 and to H.264 YouTube HD widescreen.  It definitely used GPU Hardware Acceleration for (apparenlty) the PAR and scaling.

                                 

                                Message was edited by: Bill Gehrke

                                • 13. Re: CPU Temperatures High
                                  Jeff Bellune ACP
                                  It definitely used GPU Hardware Acceleration for (apparenlty) the PAR and scaling.

                                  Correct.  But PAR and scaling occur before encoding.  GPU hardware acceleration is *not* used for the encoding to H.264.  All those calculations are handled by the CPU.

                                   

                                  -Jeff

                                  • 14. Re: CPU Temperatures High
                                    Bill Gehrke MVP

                                    Maybe that depends on how you do it.  I closed Premiere and opened AME.  During the entire encoding process I had about 20% GPU usage and about 60 % CPU usage.  Maybe with direct export from Premiere it is different??

                                    • 15. Re: CPU Temperatures High
                                      Jeff Bellune ACP

                                      There have been reports that encoding to H.264 with the AME takes longer than with Pr's direct export.  The lower CPU usage with AME may be why.  Regardless, MPE is a "playback" engine, not an encoding or exporting engine.

                                       

                                      -Jeff

                                      • 16. Re: CPU Temperatures High
                                        Bill Gehrke MVP

                                        Jeff you are correct in that with the export from my file encoded directly from Premiere it was 5 seconds less than the 193 seconds it took in AME.  This was encoding my old no effects 1440 x 1080 HDV clip of 4 mins 52 seconds (292 seconds) in CS5.5 to the YouTube H.264 HD Widescreen preset.  But it appears to me that the Premiere direct export used more GPU and less CPU.  I would estimat that the GPU avearge usage inreased to about 30% and the CPU avearge usage went down to 50-55% with direct export (see GPU usage below)

                                         

                                        Contrary to your "MPE is a "playback" engine, not an encoding or exporting engine" in CS5.5 I think you will find that (according the Steve Hoeg) the MPE GPU is being used for; PAR, Frame Blending, Time Remapping, and Scale to Frame Size in encoding.  This is a significant change from previous information on CS5.

                                         

                                        HDV-GPU-Direct.jpg

                                        • 17. Re: CPU Temperatures High
                                          alexdejesus Community Member

                                          I've been following this thread that I started and was wondering how you were reading GPU/CPU loads. I have the ASUS GTX570 and there is no such monitoring program. So, you are reading the "GPU Load" in the TechPowerUp while exporting the timeline? Is there also a tool for measuring the time it takes to export files or are you just reading your watch?

                                           

                                          I've been trying to do the PPBM benchmark, but I'm not producing the "output.txt" file.

                                           

                                          I post a lot of videos to YouTube, so I often use the H.264 HD preset. I have a Matrox MX02 Mini, but not the Max version.

                                          • 18. Re: CPU Temperatures High
                                            Jeff Bellune ACP
                                            Contrary to your "MPE is a "playback" engine, not an encoding or exporting engine" in CS5.5 I think you will find that (according the Steve Hoeg) the MPE GPU is being used for; PAR, Frame Blending, Time Remapping, and Scale to Frame Size in encoding.  This is a significant change from previous information on CS5.

                                            Perhaps I could have worded that better.  All the factors you mention occur *before* the pixels in the video frame are converted into the export codec.  I'm talking about actually encoding a video frame to H.264.  Once the GPU hands off the frame to the MainConcept H.264 encoder, the encoding is done exclusively on the CPU.  The MC encoder gets a frame that has already been PAR'd, blended, remapped and scaled.

                                             

                                            I'd be happy to discover that the GPU now assists the MC encoder, since that would be a huge new feature for Pr and would make lots of people besides me happy, too.   But I don't think that's the case.

                                             

                                            Try your 1440x1080 (1.3333) HDV clip and encode it to H.264 Blu-ray using Match Source Attributes as the preset.  You'll get a 1440x1080 (1.3333) M4V file.  That eliminates GPU scaling.  I just ran a similar test here, and my CPU usage was between 70% and 80% the whole time.  My GPU usage during the export was 0% with hardware MPE enabled.  (No, that's not a typo: it was really 0%).  For reference, I'm using a hacked GTX280.

                                             

                                            -Jeff

                                            • 19. Re: CPU Temperatures High
                                              Bill Gehrke MVP

                                              Here is a script that I could not live without since Microsoft stopped giving us full file created and modified times in Win 7.  It is called File Time.dat.  Download it and change the extension name to .vbs.  Just run the script and fill in the full path name to the file of interest and it will give you seconds readout of the file from creation to last modified time.  Note if you copy and paste it changes the modified time, not so with cut and paste.

                                               

                                              You could also download the EVGA GPU overclocking tool and it actually is slightly easier to read.  One good feature od the TechPowerUp tool is as you put the cursor over one of the tiny bars it will read that value for you.

                                              • 20. Re: CPU Temperatures High
                                                Bill Gehrke MVP

                                                Jeff, I am trying your suggestion but while the Project Clip Properties and Timeline Clip Properties both show 1440 x 1080 the Export Settings Source is listed as 1920 x 1080 (1.0) How do I get that to show the real raw settings?

                                                • 21. Re: CPU Temperatures High
                                                  Jeff Bellune ACP

                                                  Here's how it's set in CS5:

                                                   

                                                  1440BDExport.png

                                                  • 22. Re: CPU Temperatures High
                                                    Bill Gehrke MVP

                                                    Sorry Jeff but it took me a while to figure out how to do it.  When you create the project you have to create a anamorphic project,I always created a 1.0 PAR project with my HDV files.  And you are correct in that with anamorphic project and an anamorphic same size output there is no GPU action.