Upgrading socketed RAM is usually fine for warranty.

Yes, you can upgrade the socketed RAM without voiding the warranty—assuming you don’t physically damage anything.

Most laptop manufacturers (Dell, Lenovo, HP, Asus) explicitly allow user-replaceable RAM upgrades. The soldered RAM is irrelevant to the warranty on the socketed slot; you’re only touching the part that’s designed to be swapped. If you crack a motherboard clip or short something out, that damage won’t be covered—but that’s the same as any DIY upgrade.

The real trap: some brands (looking at you, Gigabyte and MSI on certain gaming laptops) slap a “warranty void if removed” sticker on the RAM cover screw. In the US, that’s unenforceable under the Magnuson-Moss Warranty Act, but it might still mean a fight if you need service. If you’re paranoid, take a photo of the sticker before removing it, or call support first.

Bottom line: check the service manual for your model. If it shows a removable module, you’re good. If the manual says “no user-serviceable parts,” you’re still probably fine—just be gentle.