broken memory slot and 144hz works incorrect

[Vangola]

Hello, i have two problems.
1) One of my RAM slots doesn't work. Both of my memory chips work. I swapped them. My laptop detects only 8GB memory.

2) My monitor works incorrect. When i apply 144Hz, bottom half of the monitor turns black. But 60Hz works perfectly fine, and another monitor works fine. GPU is not the problem.

Both problems occured unexpectedly in the same time. 

[Anand_Andy]

Hi @Vangola,

Welcome to the HP Support Community

I understand you are facing a display flickering issue with your HP Notebook PC. Not to worry I will help you to get a resolution to resolve the issue.

To assist better:

• Was there any recent update on the PC?
• Are all the drivers on HP Support Assistant up to date?
• If not please follow the document to update the drivers: HP PCs - How to Download, Install, and Use HP Support Assistant (Windows)

While you respond to that please try the below steps:

Update the BIOS & Video card drivers:

• Here's the link to download and install the above updates: Click here

If the issue persists, then please follow the steps mentioned in this document: HP Notebook and All-in-One PCs - Troubleshooting Screen Issues (Windows 10, 8, 7)

Hope this helps! Keep me posted. 

Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!