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Haswell Overclocking Guide [With Statistics] - Page 1066

post #10651 of 19571
Quote:
Originally Posted by Forceman View Post

The time seems about the same, although I didn't measure it. It is only one pass now though, so the total time is slightly less. It is pushing about 99.1 percent CPU usage in my testing.

Right now I'm using a 75MB 1080p trailer for the new Godzilla movie as the source. I'm just not sure what encoder quality settings would be best.

Edit: So far everything seems to be working. Only thing left is to test it on a 32-bit OS, but since I'm currently watching The Walking Dead on the only 32-bit system in the house, that'll have to wait until tomorrow. smile.gif

haha thanks for the reminder thumb.gif
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post #10652 of 19571
Quote:
Originally Posted by Forceman View Post

The time seems about the same, although I didn't measure it. It is only one pass now though, so the total time is slightly less. It is pushing about 99.1 percent CPU usage in my testing.

Right now I'm using a 75MB 1080p trailer for the new Godzilla movie as the source. I'm just not sure what encoder quality settings would be best.


Here is a good source file, http://www.mediafire.com/download/3zek5x1291ghb49/Gravity_Trailer.7z it has high quality grain, lots of motion, it's 20Mb/s and it's a trailer (in case someone is concerned about "piracy"). The quality of the source is one of the most important things! It is bigger than the previous one 353 vs 101MB, 2m27s vs 2m3s. If i find a 1 minute trailer with such good properties, i'll link it.

The settings i would recommend are:
- encode mode : constant quality (CQ). Not 2pass, not constant bitrate or constant quantizer. THIS IS IMPORTANT!
- constant quality ratefactor : 18
- preset : slow or slower. Don't go lower than that (like placebo) because it just gives the cpu more time to make decisions.
- profile : high
- tuning : none
- number of B-frames : 3
- adaptive B-frames : optimal
- number of reference frames : 5
- chroma ME : enabled
- ME range : 24
- ME algorithm : multi hex
- subpixel refinement : 10 (QP-RD)
- macroblocks partitions : all
- trellis : 2 (always)
- (maybe PSY-RD strength : to 1.20 ?!?)

ex: program --preset slow --crf 18.0 --merange 24 --subme 10 --partitions all --trellis 2 --output "output" "input"

Wit this settings and this file, the time/temps will not be the same.
Edited by angelotti - 4/17/14 at 12:45pm
post #10653 of 19571
Update.
From what i can tell from the loop test batch file, the OP version of 'x264 Stability Test' uses 'Adaptive Quantizers' with 'mode 2' but i don't know what effect that has in 'cpu stress' terms.
The default 'mode' for 'Adaptive Quantizers' is 1. So i guess they should both be tested.
Dose anybody know where the temp output file is written, or if there is a proper log of the encode that contains encode parameters? Because, unless Adaptive Quantizers mode 2 is the reason, i can't tell why it is taking so long to encode (12-15 minutes) wich is too much for those settings with that source file...
Edited by angelotti - 3/3/14 at 6:48am
post #10654 of 19571
Hi again guys,

so, i realized my Haswell has somewhat problem to reach 4,5. 4.4 is quite ok for computing gaming, rock stable. OCCT crashes though. Usually 124 BSOD. .Few pages back, I have noticed, someone like to use 1,5 1,65V for their ram. Could this be the issue? Cuz having 1,35V for 1600MHZ ones. And as the memory is inside the cpu... you know...Because I do not mess with ram (OC), I also totally ignore Voltage agent, A/D.
Edited by Wakizashis - 3/3/14 at 9:16am
post #10655 of 19571
this is my current settings, use the 28.3 prime95 for 20 minutes. maximum temperature was 84 C.. was bad? I have a 240L eisberg






would take 4.3. I need to change in settings?
post #10656 of 19571
Quote:
Originally Posted by Wakizashis View Post

Hi again guys,

so, i realized my Haswell has somewhat problem to reach 4,5. 4.4 is quite ok for computing gaming, rock stable. OCCT crashes though. Usually 124 BSOD. .Few pages back, I have noticed, someone like to use 1,5 1,65V for their ram. Could this be the issue? Cuz having 1,35V for 1600MHZ ones. And as the memory is inside the cpu... you know...Because I do not mess with ram (OC), I also totally ignore Voltage agent, A/D.

Throw 1.5v at it on same timings and speeds if you feel like it to see if anything changes. I really doubt it though. What's your highest solid stable for everything profile?
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post #10657 of 19571
Quote:
Originally Posted by Caos View Post

this is my current settings, use the 28.3 prime95 for 20 minutes. maximum temperature was 84 C.. was bad? I have a 240L eisberg






would take 4.3. I need to change in settings?

A lot of people use 33x ratio for it and manual 1.15v, though i'm not sure which board that is necessary on to stop uncore/cache/ring going to like 4ghz by default and throwing higher auto volts to stabilize it

Why test with Prime 28.3?
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post #10658 of 19571
Quote:
Originally Posted by Cyro999 View Post

A lot of people use 33x ratio for it and manual 1.15v, though i'm not sure which board that is necessary on to stop uncore/cache/ring going to like 4ghz by default and throwing higher auto volts to stabilize it

Why test with Prime 28.3?

from what i have seen its a gigabyte only problem and should not be a problem on an msi m-power
post #10659 of 19571
Use only for testing prime 28.3 .. I try with 27.9?

do not touch the settings then?
post #10660 of 19571
Quote:
Originally Posted by Caos View Post

Use only for testing prime 28.3 .. I try with 27.9?

do not touch the settings then?

Try x264 or prime27.9 custom with fft size 1344-1344 and >90% of available RAM
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