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‎11-06-2020 04:46 PM - edited ‎11-06-2020 04:50 PM

HP Recommended
Product: Probook 455R G6
Operating System: Microsoft Windows 10 (64-bit)

Hello.

Owning a HP Probook 455R G6 7LQ74ES notebook, Ryzen 5 3500U based. Trying to add some extra RAM, bought exact same memory stick, as factory installed - Samsung M471A1K43CB1-CTD. When I disassembled notebook, and added new stick in slot #2- notebook refused to power on, playing three long and two shorts sound signals upon start up repeatedly. Uninstalled new stick - all working fine, as usual. When tried to use single old memory stick in #2 slot - same problem, don't booting, same sound signals. If install single new memory stick in slot #1 - all working fine, no problems. So, it is obviously some troubles with occupuing #2 memory slot, buy I can't see what exactly going wrong.

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