Crossfade14

Crossfade14

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    Crossfade14
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    Did I understand it correctly, that in case I have flashed the modified unlocked BIOS and disabled power limits there, then I do not need to use Throttlestop or the manula memory writing, as these will just add a limit ontop again (even though a higher limit than originally)?

    Because my problem is, that nothings seems to change anything. I flashed the unlocked BIOS and disabled power limits there. Then I made some benchmarks (Passmark – PerformanceTest and Unigine Heaven and two games) and results for ether no futher change to settings or with Throttlestop (15W, longest burst period; yes I locked settings and clicked on “on”) or with RW.exe and cmd commands for 15W, results/scores/fps are always the same (around 160 in Unigine Heaven) and do not even differ from before flashing the bios and doing the heatsink mod.

    What makes me so curious is, that somehow during Heaven benchmark (so heavy graphics testing) the cpu does NOT stay at around 1,9 level but does throttle down quite al lot even though it uses only around 9W and temperature is just about 60°C. So nether the electric nor the thermal limit is reached, yet it throttles. As long as I just use CPU related tasks it stays at max speed but as soon as the GPU comes along aswell, it stays at 2100Mhz CPU and 700Mhz GPU @*11-13W for some seconds, before it then goes down to about 1700-1900Mhz (CPU) and ~450-550Mhz (GPU) @8,5-9W and stays on this level.

    So what could be the reason for not seeing any improvement? Why does it still throttle that much? Could it be connected somehow to the GPU multiplier/ratio? Why seems the GPU to be stuck at 450Mhz in 99% of the time when a game is running even though 700Mhz could be the burst rate and nether Celcius nor Watt are anywhere close limits. Is it somehow possible to also address the GPU clock speed from memory with RW? To somehow “force” it to boost or at least to tell the GPU that there is no need to throtte currently. All fixes here seem to focus on the CPU (yes I know its an internal GPU)

    This thread made me think about it, unfortunately i have not the knowledge to dig deeper into this.

    https://www.overclockers.com/forums/showthread.php/788464-Change-ratio-on-Apollo-lake-soc-and-intel-HD500

    To clarify on thing on the screenshot: The sensor graphs and logs were not running right from the beginning. So the graphs just show the “lower” level afer a couple of seconds and not the 2100Mhz (CPU) / 700Mhz (GPU) @11-13W level from the first seconds.

     

    EDIT: I tested some more and noticed that if I use H.264 x264 Codec (which just uses the CPU) in Handbrake then Throttlestop stays at about 2100Mhz and 9W with just about 59°C after 15min. So this is obviously the cpu limit and thats fine. But if I use the H.264 Intel QSV codec (which also uses the iGPU) speed starts at 2100Mhz and 600-700Mhz GPU and about 12W and after some minutes it drops to constant 9W, 1700-1900Mhz and 450Mhz(GPU) and throttlestop shows that throttling is engaded and stays there even though temperature never exeedes 61°C . So even with the new limits or without limits the CPU is not possible to keep MAX CPU AND MAX GPU speed constantly because of throttling. And this throttling cannot be due to power limits (9W instead of 15W or unlimited) nor can it be due to temperature (61°C …). Is there anything that we can change so that the N3450 stays at its first boost speed? (yes, best performance in Intel HD driver and Windows is activated)

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