How much RAM can the HP ProBook 450 G5 support, and can I upgrade it?
The HP ProBook 450 G5 supports up to 16 GB DDR4-2400 SDRAM. It has 2 SODIMM slots that are customer accessible and upgradeable, and it supports dual channel memory. HP recommends using HP branded memory to ensure compatibility, as some third-party memory modules may cause issues. (Page 2)
From the official HP ProBook 450 G5 Notebook PC manual, page 2
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