RAM upgrade , laptop fails to start after

[Sam2502]

HP 15-dy - I tried doing a RAM upgrade and my laptop shows a black screen . Once I put in my old RAM the laptop boot up just fine. I upgraded the BIOs but still no luck. Really, really need help! 

[A_Gayathri]

Hi @Sam2502,

Welcome to the HP Support Community

I understand you are facing an issue with your HP 15-Dy0000 Laptop PC (8TH58AV). The screen is not turning on Not to worry I will help you to get a resolution to resolve the issue.

May I know 

Do you see an HP Logo when you try to turn on the unit and then the screen goes blank or blue screen, If Blue screen Have observed any error message?

Or the unit is not turning On at all 

Do You see a light glowing on the power button and next to the charging Port? 

Please try the following Troubleshoots steps. 

1.    Turn off the Unit.

2.    Disconnect the AC adapter.

3.    Remove any discs from the disc drive.

4.    Remove memory cards from the card reader slot.

5.    Disconnect all nonessential peripheral devices, such as printers, scanners, external hard drives, and USB flash drives.

6.    Disconnect the AC adapter press and hold the power button for approximately 15 seconds.

7.    Reconnect the AC adapter, and then turn on the computer.

Step 2

Turn off the unit and please press and hold the Windows key + letter B key and the power button together for 30 seconds after 30 seconds, 1st release the power button but keep holding the Windows key and B key for ten more seconds and then release these two keys If done correctly, you will see the display flashing once. Please attempt it thrice as this step and Restart the unit

Step3

The unit has to be turned off, Press Win+ V while holding these two keys then Press the Power button, continue to hold all three keys for 30 seconds and then release the Power button first and then release these two keys Please attempt it thrice  and then you may get a Pop-Up CMOS Check and it will restart the unit 

Even if you don't get a Pop-up restart the unit manually after 3 attempts.

After the above  troubleshooting steps if the unit  turns on 

click here and follow the troubleshooting steps-  HP Laptop Starts but No Display | Black Screen |

click here and follow the troubleshooting steps- How to Fix a Black Screen on Your Computer

Please  update Windows and HP support assistances updates 

And update Bios and other drivers please click on the link. to update the drivers. 

follow this link to run the test hardware test 

I 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!

[Sam2502 · Accepted solution]

Hello  Gaya,

 Thank you for your response. I am not sure if this will resolve my issue but will give it a try . My issue is happening only when I input the new RAM. When I put the new RAM (8GB) into my laptop it will not boot up it just shows a black screen.  Once I put in my original RAM (4GB) then it boots up perfectly fine . The RAM is DDR4 which is compatible so I am assuming  the issue must be with the HP laptop  model 15-dy0027ds  

[A_Gayathri]

Thank you for your reply please let me know

This unit supports 4GB RAM

please refer to this document: HP Laptop 15-dy0027ds Product Specifications

[Sam2502]

So are you saying that it is impossible to upgrade to a 8Gb?

[A_Gayathri]

@Sam2502 
Thank you for you reply

Upgrade options show link this 

please refer to this document: Maintenance and Service Guide refer to page 9