Hi VRatta,
My name is Ralph. I'm an Independent Advisor and I'll be glad to help you today.
Sorry for the inconvenience, let's check few things.
May I ask if you are using 64bit OS in your laptop?
Press windows + R and type msconfig.
Under boot tab>click advance.
Uncheck Max Memory.
Click Apply
Click Ok.
Restart your PC
Check again.
Note: Make sure that your BIOS detected the RAM or try to reinsert the ram properly.
Regards,
Ralph