Installing RAM is one of the easiest hardware upgrades you can do yourself, usually taking less than ten minutes once you have the right memory. No special tools are needed beyond perhaps a screwdriver, and there's very little that can go wrong if you follow a few careful steps.

Key takeaway: Fitting new RAM is a simple, tool-light job that most people can safely do themselves in under ten minutes by following basic anti-static precautions.

Before you start: Fully shut down your PC, unplug it from the mains, and press and hold the power button for about five seconds to discharge any residual electricity before opening the case or laptop. If your laptop is still under warranty, check whether opening it yourself would void that cover.

What you'll need

  1. Compatible RAM modules (DIMM for a desktop, SODIMM for a laptop – the smaller, compact version) matched to your PC's supported type and speed.
  2. A Phillips #0 or #1 screwdriver, depending on your case or laptop's screws.
  3. An anti-static wrist strap if you have one, or simply touch a bare metal part of the case regularly to discharge static electricity.
  4. A clean, well-lit, flat surface to work on.

Installing RAM in a desktop PC

  1. Power off, unplug the PC, and open the side panel, usually by removing a couple of thumbscrews or a latch.
  2. Locate the RAM slots on the motherboard – long thin slots usually near the processor, with small clips at each end.
  3. If removing old RAM, gently push both end clips outward until the module pops up, then lift it straight out.
  4. Align the notch on the new RAM module with the notch in the slot – it will only fit one way round.
  5. Press down firmly and evenly on both ends of the module until the clips click closed automatically. It should sit flush and feel secure.
  6. If you have multiple sticks, check your motherboard manual for the recommended slot order for dual-channel performance (often skipping alternate slots, such as slots 1 and 3).
  7. Close the case, reconnect everything, and power on. Windows should detect the new RAM automatically.

Installing RAM in a laptop

  1. Power off, unplug, and remove the battery if it's user-removable, then hold the power button for five seconds.
  2. Locate the RAM access panel on the underside of the laptop, usually secured with a few small Phillips screws (occasionally Torx on some models).
  3. Remove the panel carefully and locate the SODIMM slot(s), often protected by a small metal cover you may need to unclip.
  4. To remove an old module, gently push the side clips outward until it springs up at an angle, then slide it out.
  5. Insert the new SODIMM at roughly a 30-degree angle, matching the notch, then press it down flat until the clips click into place.
  6. Replace the panel and screws, reinsert the battery if removed, and power on to confirm Windows recognises the new memory.

Tip: After installing, confirm everything is working correctly by checking Task Manager's Performance tab or running CPU-Z, both of which will show the total installed RAM and its running speed.

Frequently asked questions

What if my PC doesn't recognise the new RAM?
Power off, reopen the case, and firmly reseat the module, ensuring it clicks fully into place on both sides – this is the most common cause of a module not being detected.
Do I need to update any settings after installing RAM?
Usually not for typical use. On desktop PCs, some motherboards let you enable XMP or EXPO in the BIOS to run RAM at its full rated speed rather than a conservative default.
Is it risky to open a laptop myself?
It's generally straightforward on models with a dedicated RAM access panel, but some ultra-thin laptops have soldered memory with no upgrade slot at all, so always check your exact model's specifications first.

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