HP Omen 27i Monitor maximum refresh rate is only available up to 144hz instead of 165Hz

[SumodBose]

Recently brought Hp Omen 27i monitor. This is my first gaming monitor and had searched a lot before buying this one but after using, the highest refresh rates which I can get are only up to 144hz. I'm using a Dell XPS 13 9350 laptop which is powered by intel 520 graphics card and I have connected omen 27i monitor as a secondary monitor. 

As of now, I don't have huge computer setup for getting the full performance for this monitor but I'm building one by one and buying a monitor was the first thing in my agenda so that I can use it as an extra display which will help me a lot for my WFH.

Is this the reason why I don't see a higher refresh rate of 165 Hz? I'm using a USB c to display port cable(2k@165Hz, 2k@144Hz). Is it possible to get a 165 Hz refresh rate for my current setup? From my search, it says we need to overclock to get high refresh rates but those are not from any trusted sources. Is this true? If so, any idea on the scan range for horizontal and vertical for this monitor with overclock on/off? Also, my graphics card software is up to date. 

[Echo_Lake]

@SumodBose

Thank you for posting on HP Support Community.

Don't worry as I'll be glad to help, I have a few troubleshooting steps we could try to fix the issue:  

Search for and open Display settings. You can also right-click the desktop and open Display settings. Scroll down and click Advanced display settings. In the Display adapter properties, click Display adapter properties.

Click on the Monitor tab to adjust the Screen Refresh Rate from the drop-down menu. 

If the issue still persists, try re-installing the driver - 

1) In the search box on the taskbar, type Device Manager, and then select Device Manager from the list of results.
2) In Device Manager, expand Display Adapter. 
3) Right-click on the Display Adapter, and then select Uninstall device > Delete the driver software for this device check box > Uninstall.
4) Restart the computer. 

Also, try updating the computer using these steps -

Step 1 Windows Updates - 

1) In the search box, type and open Windows Updates. 
2) Check for updates. 
3) If the updates are available, click on install and restart the computer. 

Step 2 HP Support Assistant Updates - 

1) In the search box, type and open HP Support Assistant. 
2) Check for updates. 
3) If the updates are available, click on install and restart the computer.  

Hope this helps! Keep me posted for further assistance.
Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.