Buyer guide
What PC parts are safe to buy used?
Used parts can cut a build's cost in half — but not every component is a safe second-hand bet. Here's the tier list Canadian PC builders swear by.
GPUs
SafeThe single biggest saving in any used build. Test at the meetup: temps under load, no artifacts, no bent bracket. Skip anything that was clearly used for mining unless the price reflects it.
How to test a used GPU →CPUs
SafeNo moving parts, near-zero degradation. Inspect the pins on AM4/older Intel, run Cinebench for 10 minutes, and confirm all cores boost. One of the safest used buys.
Browse used CPUs →RAM
SafeRun MemTest86 for one full pass. Zero errors = good for a decade. DDR4 kits are especially cheap right now as builders move to DDR5.
Browse used RAM →Cases
SafeA wipe-down and dust-out and it's new again. Zero risk. Massive savings on premium cases (Fractal, Lian Li, NZXT).
Motherboards
Usually fineCheck every USB port, PCIe slot, and RAM slot at the meetup. Ask for the original box (BIOS updates are easier). Watch for bent CPU socket pins on Intel LGA.
Monitors
Usually fineTest for dead pixels (JScreenFix, LCD dead-pixel test), backlight bleed on a black screen, and burn-in on OLED. If they pass, they'll last years.
SSDs & HDDs
Usually fineAsk for a CrystalDiskInfo screenshot. Under 30% of rated TBW and 100% health = safe. Cheap enterprise HDDs (8–18 TB) are the best used-storage deals in Canada.
Browse used storage →Power supplies
RiskyA dying PSU can kill everything downstream. Only buy used if it's under 5 years old, from a Tier-A brand (Seasonic, Corsair, EVGA G-series, be quiet!), and you can see the original receipt. Skip anything unknown.
AIO liquid coolers
RiskyPumps have a 5–7 year lifespan and coolant evaporates over time. OK for a short-term build; risky for a keeper. Air coolers are the safer used pick.
Thermal paste, fans with worn bearings, mining GPUs sold as gaming
AvoidFresh paste is $10 new — don't buy used. Fans with obvious grinding aren't worth it. And any GPU that ran 24/7 for two years in a mining rig has burned through its VRM and fan lifespan, no matter how the seller describes it.
The one rule that matters
Test everything at the meetup, in person, plugged in. Sellers who refuse a live test have something to hide — every time. Meet in a safe exchange zone and pay with Interac e-Transfer, not cash, so you have a paper trail if something goes wrong.
Ready to shop?
Browse all used PC parts on Partr — Canadian sellers, CAD prices, no border fees.