Upgrading ram, need info.

[OfficerAdrian]

Greetings, i want to make an upgrade to my laptop, from 8gb ram DDR4 i want to put DDR4 16 x2 to reach 32gb ram.

My main question is what is the maximum MHz and memory my main board (Model :  84A7) can support.

Laptop model HP Notebook - 15-da0040nq

[Paul_Tikkanen · Accepted solution]

Hi:

The maximum speed the memory will run at in your PC is 2400 MHz, because that is the fastest speed your notebook's processor can run the memory at.

You can install DDR4-3200 memory but it will only run at 2400 MHz.

You can run this command to see how much memory your notebook can support:

1. In the search box, search for cmd and click Run as administrator.

This will open the command prompt.

2. Once the command prompt is opened, type wmic memphysical get maxcapacityEx and hit enter.

There, it will show the maximum RAM capacity your PC's motherboard can support.

The capacity is shown as Kilobytes, so you have to convert it to Gigabytes by dividing the number provided in the report by 1,048,576.

Below is the link to the service manual:

HP 15 Laptop PC Maintenance and Service Guide