Upgrading your PC's RAM

How to diagnose a memory shortage and what to do about it

Adding RAM is often the most cost-effective upgrade you can make to speed up a sluggish computer. PCs that had more than enough RAM when they were new often have trouble keeping up with the demands of the latest programs after a few years. New operating systems almost always call for more memory, too. When a computer runs short of RAM, it's forced to swap the overflow data on and off of the hard drive, which can significantly slow performance.

Below, we'll tell you how to diagnose a memory shortage and what to do about it.

How do I know if I need more RAM?

Check your PC's RAM usage by opening Windows Task Manager. Press Ctrl-Alt-Del (Vista users will have to click Start Task Manager) and click the Performance tab. If the figure next to 'Available' (or 'Free' in Vista) under 'Physical Memory' hovers around zero and your PC seems sluggish, you need more RAM.

How much RAM do I need?

The average Windows XP user should be satisfied with 1GB of RAM. Our tests, which involve working with images and using Nero Express to burn CDs, ran one-third faster when we upgraded from 512MB of RAM to 1GB. Power users who simultaneously run lots of demanding applications, or anyone regularly working with digital video or other large graphics files, will want at least 2GB. If you're planning to upgrade your PC to Windows Vista, you can still get away with 1GB, but for a more comfortable experience we recommend 2GB of RAM.

What kind of RAM works on my PC?

RAM comes in many flavours, including DDR, DDR2, and DDR3. Newer technologies offer faster performance, but most motherboards accept only one type of RAM. Check your PC's manual to find out what type of RAM modules you need and how they have to be installed. RAM dealers such as Crucial and Kingston offer handy online tools for identifying the right RAM for many PCs and motherboards. Most PCs being upgraded today use dual-channel memory, which you must install in pairs for maximum performance, so adding two 512MB modules instead of one 1GB module may be better. Again, check your documentation.

Paying a few dollars more to buy RAM from a reliable manufacturer like Crucial or Kingston is usually worthwhile, as RAM quality isn't the place to save a few bucks.

What do I need to add more RAM?

Tools: You'll need an antistatic wrist strap for grounding yourself. Your local computer store should have one for less than US$15.

Documentation: Some motherboards require module pairs to be placed in specific banks, or pairs of RAM sockets. Consult your documentation before starting the upgrade.

Join the newsletter!

Or
Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Kirk Steers

PC World
Show Comments

Essentials

James Cook University - Master of Data Science Online Course

Learn more >

Mobile

Exec

Budget

Back To Business Guide

Click for more ›

Brand Post

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Andrew Teoh

Brother MFC-L9570CDW Multifunction Printer

Touch screen visibility and operation was great and easy to navigate. Each menu and sub-menu was in an understandable order and category

Louise Coady

Brother MFC-L9570CDW Multifunction Printer

The printer was convenient, produced clear and vibrant images and was very easy to use

Edwina Hargreaves

WD My Cloud Home

I would recommend this device for families and small businesses who want one safe place to store all their important digital content and a way to easily share it with friends, family, business partners, or customers.

Walid Mikhael

Brother QL-820NWB Professional Label Printer

It’s easy to set up, it’s compact and quiet when printing and to top if off, the print quality is excellent. This is hands down the best printer I’ve used for printing labels.

Ben Ramsden

Sharp PN-40TC1 Huddle Board

Brainstorming, innovation, problem solving, and negotiation have all become much more productive and valuable if people can easily collaborate in real time with minimal friction.

Sarah Ieroianni

Brother QL-820NWB Professional Label Printer

The print quality also does not disappoint, it’s clear, bold, doesn’t smudge and the text is perfectly sized.

Featured Content

Product Launch Showcase

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?