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i7 4790k slows during video render with Win 10 upgrade

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i6pwr

Member
Joined
Jul 22, 2010
I think this is the correct forum as this issue may deal with temps and voltage. Rendering a short video clip with Vegas Pro 10 after my Win 10 upgrade has doubled in duration and I noticed that the CPU starts at 100% then slows down to 80% for mpeg-2 rendering and down to 40% for mp4 rendering.

I opened up my ASRock utilities and noticed the CPU temps jump to 98-99 deg C then throttled back to hold 98 deg. Also the CPU volts are 1.81-1.83?? is this normal?

All help appreciated.
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i6pwr

i6pwr

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Jul 22, 2010
The V-core volts are lower, here's the screenshot at idle.
 

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Mandrake4565

Mr. Clean Senior Member
Joined
Jan 12, 2012
1.81-1.83 is normal for the input voltage. Looks like you have the Cpu overclocked to 4.5 with 1.27 Cpu v what are you cooling it with? My 4770k @ 1.23 v will put my temps in the high 80's under load with a custom loop, it's possible that you just don't have enough cooling for 1.27 V.
 
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i6pwr

i6pwr

Member
Joined
Jul 22, 2010
1.81-1.83 is normal for the input voltage. Looks like you have the Cpu overclocked to 4.5 with 1.27 Cpu v what are you cooling it with? My 4770k @ 1.23 v will put my temps in the high 80's under load with a custom loop, it's possible that you just don't have enough cooling for 1.27 V.

Stock cooler, the OC is the turbo feature..I haven't changed any settings. Odd thing is, I could render these clips from when I built this rig with no issues, but as soon as I updated to Win 10 the rendering times were cut in half. Could be coincidence and I prob should get a better cooler anyway....just seems too coincidental.

I just updated my BIOS so we'll see how that does.
 
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i6pwr

i6pwr

Member
Joined
Jul 22, 2010
Well, my BIOS was way out of date, with the current version the render this time maintained near 100% CPU usage and only peaked at 95 deg once but stayed near 88-90 deg. Fan speed is 1600 RPM, not sure if that's max.

I will double check the BIOS settings.
 

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i6pwr

i6pwr

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Jul 22, 2010
I checked the bios and reloaded the memory XMP profile and enabled the turbo 4.7 mode and now it runs at 2.6??

I would really like to get back where it was, not sure what settings to make in the bios.
 

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i6pwr

i6pwr

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Jul 22, 2010
I changed the bios to max OC of 4.5 and ran it again and it stayed near 100% but at 98deg.....I'm assuming this is too hot for continuous use?
 

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i6pwr

i6pwr

Member
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Jul 22, 2010
I think I'm going to upgrade the cooler as well. Not sure what will fit but I will ask on the ASRock section.
 

Mandrake4565

Mr. Clean Senior Member
Joined
Jan 12, 2012
Keep the Cpu stock for now and do not enable any overclocking features on the motherboard, which turbo mode is. Then when you figure out which heatsink you're getting on the other thread you can Oc.
 
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i6pwr

i6pwr

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Joined
Jul 22, 2010
I will keep it at 4.0 until I upgrade the cooler....thx.
 
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i6pwr

i6pwr

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Joined
Jul 22, 2010
I'm very curious as to the control of the CPU temps with Win 7 compared to Win 10. I'm thinking that there's a possibility my CPU temps were high before using Win 7 and nothing was done to stabilize them....purely speculation. All this happened right after the upgrade so I'm curious as to what control the MB or the OS has on the CPU temp compared to Win 7.

So this is my progress...

I flashed my BIOS as per ASRock recommendations for Win 10, now my render times are improved because my CPU stays at 98-100% but the temps are still high, hovering at 95 during render and peaking to 98-99 in Turbo mode...but still not as fast as before with Win 7 but maybe 25% slower right now.

I disabled the Turbo feature for now so I will await the new cooler and go from there.

I'm only using the ASRock utilities for monitoring the CPU temps and fan speeds so if there's something else that's better I'm open for suggestions.

The heatsinks are all clean for the most part..maybe a slight film of dust before but it's definitely clean now.
 

Mandrake4565

Mr. Clean Senior Member
Joined
Jan 12, 2012
There are a lot of variables and unknowns involved here i6pwr. When you posted the screen shot in post #2 you had the Cpu overclocked from what I can tell using the Asrock software. A lot of times when using overclocking software it will give the Cpu way more voltage then it needs for that oc. If you are certain that all settings were the same in Win 7 and Win 10 then it's tough to say why it would be running hotter. It could be because you updated the BIOS. When one does update the BIOS a lot of things can change, one thing that could have changed is the amount of voltage the board is giving the processor. As far a monitoring software goes, I use Hwmonitor, only because a lot of people I work with on this forum use it and it helps to all be on the same page.
 
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i6pwr

i6pwr

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Jul 22, 2010
The brief history on this rendering prob is this:

With Win 7, when I started the render, within a second or 2 the fan would speed up and it would plow through the render, almost 50 to 60 fps at times and a 90 sec clip would take about 120 sec.

Now as far as the OC, it appears to be ramped up to 4.3-4.5 Ghz and I think that's in the ASRock utilities. When I built this rig, using Win 7, I didn't change anything but needless to say it would have been best to have someone doublecheck things.

The reason I went into the utilities is because I don't hear the fan ramp up like it used to..and it's slow performance overall...that's when I discovered the high temps. Now with a render going, I disabled the Turbo feature but it appears in the ASRock utilities there's an OC set up. Also with the last render, it was around 4.3Ghz and the fan didn't really speed up much and it went to 98 deg and I canceled the render...with Turbo disabled.

At idle it runs pretty cool, but I definitely want to get this thing right, I have a monster of a cooler coming :) so I can finally pop this PC's cherry and get it OC'd before you all send me to the corn fields..lol.

This is the current ASRock settings, and the system info at idle.
 

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i6pwr

i6pwr

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Jul 22, 2010
This is my bios, hopefully there's something to the trained eye here. It's apparent that 4.4 is the current setting, I thought it should be 4.0 in stock form.

- - - Updated - - -

Looks like in the bios, it's set at 4.0, but ASRock utilities shows 4.4.

Also, Turbo is enabled again after I disabled and saved the settings, as well as CPU fan on standard...I set as full.

I did go back and change these....again.
 

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i6pwr

i6pwr

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Jul 22, 2010
Could this be an anti virus issue? Being slow? Here's the current render with Turbo off, fan set to high but I don't hear it ramp up at all.
 

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i6pwr

i6pwr

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Jul 22, 2010
Latest test...are these v-core volts too low?
 

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Mandrake4565

Mr. Clean Senior Member
Joined
Jan 12, 2012
I doubt it's an issue with a virus, what has likely happened is when you updated the BIOS the fan profile is different. You can try going into the BIOS and set the Cpu 1 & 2 fan profile a bit more aggressive. Your temps seem to be fine but I'm not sure if that reading is under load or not. As far as it being slow, do you have some time measurement from previous renderings that you can relate it to? It seems there have been so many changes that it's tough to really judge exactly how much slower it is. Bottom line is when you get the new heatsink you'll likely get a mid 4 Oc on that chip on all 4 cores/8 threads and improve your rendering speeds.
 
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i6pwr

i6pwr

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Jul 22, 2010
I was actually referring to the new AV that is with Win 10. Even though it's called Windows Defender along with "anti malware service executable" that was included in the Win 10 upgrade. Perhaps it is scanning files....not sure.

I was using MSE before.

I didn't update the bios with Win 7, or when I loaded Win 10, only after I noticed a slow down did I update the bios.

The only thing that changed from a 2:05 render to a 4 min render, was upgrading to Win 10. I used the short clip to test as I started a longer 5 min clip and I wasnt going to wait almost 12 min to finish.

I have the fan set to high but I don't hear it speed up anymore....but it does with Turbo enabled but it still gets too hot.

The temp pictured above was during a render under a load and this was with Turbo disabled. Even with Turbo enabled and temps at 98-99 deg, the fan doesn't speed up any more. So it's a sign the cooler can't handle any OC.

It's just odd that this started with the upgrade to Win 10, no other changes were made.

Can I remove Sony Vegas from the AV or Malware bite software? Providing this is part of a scan.