I want to build an affordable PC for modded GTA, BeamNG.drive, and similar games, but my current laptop barely runs vanilla Minecraft. I have several old laptops in storage—some do not turn on and one has a broken screen—and I'm wondering whether their RAM, storage, or other components could be reused in a desktop. I also found a roughly 2008-era desktop that powers on but frequently freezes during Windows startup. Could its case or any other parts be useful? Would buying used RAM or a secondhand office PC be a safer and cheaper option? I'm trying to keep costs low because I'm also saving for a car.
4 Answers
A used business desktop from a reputable seller can be a good starting point. Look for something with a reasonably modern processor, 16 GB of RAM, and an SSD, then add a compatible used graphics card. Before buying, confirm the case has room for the card and that the power supply has enough capacity and the right connectors. Small-form-factor office PCs often need low-profile cards and may not support a normal upgrade.
Used parts can save money, but test them whenever possible and avoid listings with no model numbers, unclear photos, or unreasonably low prices. For gaming, the graphics card matters far more than trying to combine random laptop parts. Have your roommate or brother price out a complete budget build and compare it with a tested used PC; that will usually be more practical than adapting parts from several broken laptops.
The 2008 computer is far too old for a modern gaming build. Its case might be reusable if it accepts standard components, but older cases can have awkward layouts and limited airflow. The power supply should not be reused for a gaming GPU unless you know its condition and specifications. Random Windows freezes could come from the drive, RAM, power supply, or motherboard, so I would not spend much repairing it.
Laptop RAM is usually SO-DIMM, which is physically different from desktop DIMMs, and some laptops have RAM soldered directly to the motherboard. Adapters exist in some cases, but they are not an ideal or reliable way to build a desktop. The laptop storage is usually the easiest part to reuse, especially an M.2 SSD or a standard 2.5-inch SATA SSD. Check its interface and health first.

That makes sense. I’ll check the model numbers on the drives and look into used office PCs instead of assuming all the laptop RAM can transfer over.