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Kuso_66480
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Posts: 9
Registered: ‎05-13-2018
Location: MY
Views: 920
Message 21 of 95

Re: DO NOT UPDATE BIOS 4KCN43WW ON LEGION Y520

And here's the picture of my Laptop temperature with Turbo boost ON while playing AAA Games  (Extreme Cooling : OFF )
Highest : 81°C  Lowest : 74°C 

Turbo boost ON.PNG


You can tell it yourself it's a big different ( If You are going to question me why i didn't show the temperature of doing normal stuff like browsing the web , using Microsoft office ... BECAUSE THESE ARE LIGHT WORK THE TEMPERATURE WONT TELL ANY DIFFERENT YO! )

These are the info I can share with You guys Smiley Very Happy ciao!

pranav_stefan
SCSI Port
Posts: 117
Registered: ‎09-03-2017
Location: IN
Views: 885
Message 22 of 95

Re: DO NOT UPDATE BIOS 4KCN43WW ON LEGION Y520


@cz0rt wrote:

Legion Y520-15IKBN 

bios from end 2k17.



Can you tell your sub variant for your laptop? for example mine is 80WK00R0IN

I want to make sure this matches with my machine. To be honest bios version 30 is much batter then 40 and later... Don't update

cz0rt
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Posts: 12
Registered: ‎01-30-2018
Location: PL
Views: 874
Message 23 of 95

Re: DO NOT UPDATE BIOS 4KCN43WW ON LEGION Y520

80WK my verision.
Kuso_66480
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Registered: ‎05-13-2018
Location: MY
Views: 870
Message 24 of 95

Re: DO NOT UPDATE BIOS 4KCN43WW ON LEGION Y520


@pranav_stefan wrote:

@cz0rt wrote:

Legion Y520-15IKBN 

bios from end 2k17.



Can you tell your sub variant for your laptop? for example mine is 80WK00R0IN

I want to make sure this matches with my machine. To be honest bios version 30 is much batter then 40 and later... Don't update


80WK014CMJ

I've already done these on my friend's laptop , another Y520 and it work out flawlessly. It doesn't matter if the laptop is from previous batch. Undervolt and turning off Turbo Boost will give You stable gaming experiences without Frame dropping ( unless You playing next to a stove lol ) . But again , why undervolt and turning off turbo boost give You xtra performance? For undervolt You can search for detail explanation, the main reason why there's some performance issue is because under heavy load the cpu will boost it self to 3.7 GHz and result in high temperature and the thermal throttle kicks in and the cpu speed will turn down until 800 MHz which result in LAG Smiley Mad 

pranav_stefan
SCSI Port
Posts: 117
Registered: ‎09-03-2017
Location: IN
Views: 865
Message 25 of 95

Re: DO NOT UPDATE BIOS 4KCN43WW ON LEGION Y520


@Kuso_66480 wrote:

@pranav_stefan wrote:

@cz0rt wrote:

Legion Y520-15IKBN 

bios from end 2k17.



Can you tell your sub variant for your laptop? for example mine is 80WK00R0IN

I want to make sure this matches with my machine. To be honest bios version 30 is much batter then 40 and later... Don't update


80WK014CMJ

I've already done these on my friend's laptop , another Y520 and it work out flawlessly. It doesn't matter if the laptop is from previous batch. Undervolt and turning off Turbo Boost will give You stable gaming experiences without Frame dropping ( unless You playing next to a stove lol ) . But again , why undervolt and turning off turbo boost give You xtra performance? For undervolt You can search for detail explanation, the main reason why there's some performance issue is because under heavy load the cpu will boost it self to 3.7 GHz and result in high temperature and the thermal throttle kicks in and the cpu speed will turn down until 800 MHz which result in LAG Smiley Mad 


I know what is undervolting means. and i have already turned turbo boost off. To be honest Y520 seem to have some issue. On my previous laptop when i play game CPU does not boost to maximum frequency if cpu useage is less like 20% but in my Legion Y520 CPU always stays at higest frequency even if CPU usage is 5%. Does that also happen to you?

pranav_stefan
SCSI Port
Posts: 117
Registered: ‎09-03-2017
Location: IN
Views: 863
Message 26 of 95

Re: DO NOT UPDATE BIOS 4KCN43WW ON LEGION Y520


@cz0rt wrote:
80WK my verision.

Thanks for reply. I am right now BIOS version 40... I am going to use your file to downgrade to version 30. Thanks

Kuso_66480
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Registered: ‎05-13-2018
Location: MY
Views: 863
Message 27 of 95

Re: DO NOT UPDATE BIOS 4KCN43WW ON LEGION Y520

Which Power plan did You choose?

pranav_stefan
SCSI Port
Posts: 117
Registered: ‎09-03-2017
Location: IN
Views: 858
Message 28 of 95

Re: DO NOT UPDATE BIOS 4KCN43WW ON LEGION Y520


@Kuso_66480 wrote:

Which Power plan did You choose?


default. Balanced.

 

When i am not playing games but using browser like for youtube then CPU usage is 5 to 10 % still CPU frequency goes to 3.8 GHZ most of the time. For some time it comes back to 1.2 GHZ bust most of time 3.8GHZ. That is not even needed.

gryzor
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Posts: 28
Registered: ‎12-06-2017
Location: GR
Views: 857
Message 29 of 95

Re: DO NOT UPDATE BIOS 4KCN43WW ON LEGION Y520

I suspect this may be a silly question, but does the laptop come with an included utility to turn Turbo Boost or and off, or do I have to download a separate package?

pranav_stefan
SCSI Port
Posts: 117
Registered: ‎09-03-2017
Location: IN
Views: 854
Message 30 of 95

Re: DO NOT UPDATE BIOS 4KCN43WW ON LEGION Y520


@gryzor wrote:

I suspect this may be a silly question, but does the laptop come with an included utility to turn Turbo Boost or and off, or do I have to download a separate package?


No extra utility needed. Just go to your power plan and go to advanced settings and then processor power managerment. There you will see maximum CPU frequency. Just set it to 99% and turbo boost is off. You can google it. There are videos on youtube also.

 

Does you CPU frequency also stay HIGH like 3.8 GHZ most of the time? Even when CPU idle?

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