-
1
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
-
1
×InformationNeed Windows 11 help?Check documents on compatibility, FAQs, upgrade information and available fixes.
Windows 11 Support Center. -
- HP Community
- Notebooks
- Notebook Hardware and Upgrade Questions
- Cai I use 16gb 3200MHz ddr4 ram stick in my HP ProBook 640 G...

Create an account on the HP Community to personalize your profile and ask a question
07-01-2023 07:00 AM
Hi:
Chapter 1 of the service manual indicates that 2 x 8 GB of memory is supported.
If you want to see if a 16 GB memory chip will work, you can run this command to see if it may be possible:
1. In the search box, search for cmd and click Run as administrator.
This will open the command prompt.
2. Once 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.
DDR4-3200 memory will work, but it will only run at 2133 MHz because that is the fastest speed your notebook's processor can run the memory at.
07-03-2023 04:33 AM
Hi!
Can confirm that 650/640 G2/G3 will work fine with 16GB modules (2x16GB is the maximum RAM supported), as long as the modules are Dual-Rank and have normal latencies (Jedec standard). So, for 3200 DDR4 you need to find "2R cl22" modules.