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Upgrading your laptop is tricky. For the Dell E7270, the BIOS lists 2133 MHz as the frequency, but you don’t see RAM at 2133 in the settings. That might mean it’s not configured for that speed or the RAM isn’t supported. Stick with the available options—2600 MHz is standard. Regarding SSD RAID: it’s a feature that works with specific controllers and firmware, so it’s not just hardware but software-dependent. Make sure your system supports RAID and check the documentation for compatibility. Let me know if you need help finding the right settings!
2133 is the standard base frequency for DDR4. Every module will operate at this rate, and exceeding it is essentially overclocking—whether using XMP or DOCP. You should be able to install two DDR4 RAM sticks of your preference and install them together. Just make sure to swap both units, not just add another 8GB stick.
Sure! SSD Raid involves connecting multiple SSDs together to boost performance and reliability. Right now, it depends on your setup—whether you have two or more drives installed. If you're replacing existing ones, that’s likely the case. If you’re expanding, you’ll need to add more SSDs to achieve the desired configuration.
The Dell E7270 supports BIOS features and SSD RAID technology. It functions as an updated version of AHCI. Besides that, I’m not sure. I’m looking to purchase larger SSDs.
SSD Raid refers to combining multiple SSDs together, but only when there are two or more units. Swapping an existing SSD will definitely require reinstalling the operating system. I haven’t encountered any problems with using RAM personally. Just as you mentioned, they’ll both operate at the slower speed of the weaker one. If budget matters, test it first and get a second if needed.