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‎04-27-2026 02:28 PM

HP Recommended
Operating System: Microsoft Windows 11

I have an HP probook 450 G5 with 8G RAM. Can I add a 16G RAM to get 24 G RAM total? Thanks.

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‎04-27-2026 02:43 PM - edited ‎04-27-2026 02:44 PM

HP Recommended

Yes, that would be fine since chapter 1, page 2 of the service manual indicates the PC can support 2 x 16 GB of memory.

 

HP ProBook 450 G5 Notebook PC Maintenance and Service Guide 

 

However, the 24 GB of memory will only run in single channel mode.

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‎04-27-2026 02:55 PM

HP Recommended

Thanks for the quick reply!

 

What is the difference between single channel and dual channel?

 

 

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‎04-27-2026 03:02 PM

HP Recommended

You're very welcome.

 

In order for the memory to run in dual channel mode, it has to be installed in matching capacities in each slot (2 x 4 GB, 2 x 8 GB, 2 x 16 GB).

 

Memory running in dual channel mode in equal capacities provides slightly better performance than when it runs in single channel mode.

 

In other words, 2 x 8 GB of memory will perform better than 1 x 16 GB of memory.

 

You would not be able to compare 2 x 8 GB of memory in dual channel mode against 24 GB of memory in single channel mode. 

 

More memory in single channel is probably better than less memory in dual channel.

 

Watch this video.

 

Single Channel vs Dual Channel Memory - Laptop Gaming and CPU Benchmarks

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