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is possible to add 120 and 144Hz ?

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cheers comunity,
I have ultra fast display on a laptop with 300 Hz and 3ms response time.In windows i can select 60 , 240 and 300 Hz. Is there any way or trick to teach windows in registry or something to have 120 and 144 Hz refresh rate ?
For the moment, i select 240Hz refresh rate,but i m afraid is too much .For me is enough 144 Hz or even 120 Hz.Anyway in all modern games 144 Hz is enough.
Somebody told me if i use display at refresh rate 300Hz in time will FAIL !

 

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You might be able to add 120Hz & 144Hz profiles using Custom Resolution Utility.
 
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…but why? This screen does support VRR, so if the framerate is below 300 it will just scale with that. Isn’t it easier to just use a global frame cap in NV CP if you don’t want games running above certain framerate?

Somebody told me if i use display at refresh rate 300Hz in time will FAIL !
Also, this is bullshit, so don’t worry about it.
 
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lock in fps via rtss or in driver
 
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solved.
.I never had a display with higher refresh rate ,that s why i am afraid to use at 300Hz.I am afraid to no fail in time.
 

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It will ask more power, for economies les hz means less big bill, nothing else.
 
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