I'm building my first PC with a budget of around €800–€1,000, but RAM has become surprisingly expensive. I've found several people selling DDR5 kits for about €100, which seems unusually cheap. Is buying used RAM generally safe, and how can I check that it's reliable? Also, which other PC components are worth considering used, and which should I avoid?
4 Answers
Used RAM is usually one of the safer components to buy. It doesn’t have the same gradual wear concerns as storage, and faulty memory will generally show up during testing. Ask for proof that it passes MemTest86, and if you’re adding it to existing RAM, make sure the speed, timings, capacity, and voltage are compatible.
Used CPUs, graphics cards, and cases are often reasonable choices, provided the seller has good feedback and the parts can be tested. A motherboard can also save money, though it’s more difficult to diagnose if something is wrong. I’d avoid used power supplies, and I’d be cautious with used SSDs and hard drives because their remaining lifespan is harder to judge.
Buying used can be fine, but €100 for DDR5 may be suspicious depending on the kit’s capacity and speed. Use a seller or marketplace with buyer protection, confirm the exact model number, and make sure you can return it if it fails. For a first build, troubleshooting a faulty used part can be difficult because you won’t have another working PC to test it in.
If possible, test the memory before buying or run at least one full MemTest86 pass immediately after receiving it. RAM can last for many years, but even new modules can occasionally fail, so a return option matters more than whether it was previously owned.
That price would make me double-check everything. It could be a genuine bargain, but a scam or incomplete kit is more likely when the price is far below current listings.