5.3 GHz, 2666 MHz clock speed
5.3 GHz, 2666 MHz clock speed
Is there any chance it will ignite? Will no equipment get harmed? Will it simply fail to start and remain unresponsive until you remove the stick (if not compatible)? Absolutely, it might work at 2400.
Review the BIOS settings to explore available choices. For a machine like this, memory-related options might be absent, making it unclear which configurations to apply. I checked my HP ProBook 6470b and found absolutely no RAM settings—no tweaks possible. However, I managed to install an extra stick, and it’s operating at the laptop’s standard DDR3-1600 speed. If adding another stick causes unexpected behavior (such as both sticks slowing down to 2133), you should see a BIOS option like "Factory Reset" or "Reset to Defaults."
The BIOS doesn’t support RAM choices, so you might consider purchasing a 2400MHz stick instead. It seems the 2666 model won’t boot properly.
Consider checking Asus' site for a vetted list of RAM options for your laptop. Alternatively, look through user reports to find out which RAM models worked well with your system and what type was used. The BIOS might block the upgrade due to speed limits, or it could be related to compatibility with Zen+ RAM. The 3500U uses a 12nm Zen+ chip, and past experiences suggest some challenges with RAM compatibility in that range.