How to test a used graphics card

You have 48 hours after delivery. Use them. A methodical test takes about an hour and covers most of what goes wrong with used graphics cards.

Before you open the box

• Start a continuous video recording: sealed parcel, shipping label, opening, the card.
• Check the outer packaging for damage and note it.

1. Visual inspection

• Compare the model and serial sticker with the listing.
• Look for bent fins, cracked shroud, corroded or burnt connectors, missing screws, signs of tampering or liquid damage.
• Spin each fan by hand: they should turn freely without grinding.

2. Install and identify

• Power off and seat the card firmly. Connect all required power cables.
• Install the current driver. Open GPU-Z and check that the name, memory size, memory type and bus width match the listing. A mismatch is a red flag for a fake or re-flashed card.

3. Stress and stability

• Run a benchmark (3DMark, Unigine Heaven or Superposition) for at least 15 minutes, then a game you know well for 30 minutes.
• Watch for artefacts (flickering colours, stripes, black screens), driver crashes and restarts.
• Monitor temperatures. A card that hits its thermal limit within a minute or two may need a repaste.
• Check fan speeds ramp up with temperature.

4. Memory

Run a VRAM test (for example OCCT's VRAM test) for at least 10 minutes. Any error means a faulty card.

5. Decide within the window

If everything is fine, press Confirm Works or let the timer finish. If anything is wrong, report it from the order page with your video and screenshots before the window ends. See the Refund & Dispute Policy.