60 Hz instead of the declared 240, HP Omen X 25f.

[Go287]

60 Hz instead of the declared 240 in the HP Omen X 25f.
Bought the HP Omen X 25f monitor. When turned on, I found that instead of the declared 240 Hz, I only have 60. Connection to a computer using DP.
Installed drivers from HP website, nothing changed.
After that, I installed HP Support Assistant. He couldn't find my display (!), So I entered the serial and product numbers manually.
I cannot find an answer to the question of how to change the current situation.

[banhien]

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@Go287 wrote:

... Connection to a computer using DP.

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@Go287 

What is your computer ? Does its video card and its port support 240Hz ?

Regards.