Hot air and flux are non-negotiable.

If you’re trying to desolder the original RAM chips (usually BGA) from a laptop motherboard, a regular soldering iron won’t cut it. You need a hot air rework station, quality flux, and a steady hand.

RAM chips are soldered with hundreds of tiny balls underneath. A soldering iron can’t reach them — you need hot air to melt all the joints at once. For most laptop boards, a temperature around 350–380°C with medium airflow works. And flux is critical: it helps heat transfer, prevents oxidation, and makes the solder flow smoothly. Without it, you’ll lift pads or cook the board.

You’ll also want some ceramic tweezers (metal can wick heat), and ideally a preheater to reduce thermal shock and prevent the board from warping. A hot air station alone can work, but a preheater makes the job way less risky.

Don’t cheap out on the flux. And don’t try this without practicing on a dead board first.

Future You will thank you for not ripping pads off a perfectly good motherboard.