Technology in terms you understand. Sign up for the Confident Computing newsletter for weekly solutions to make your life easier. Click here and get The Ask Leo! Guide to Staying Safe on the Internet — FREE Edition as my thank you for subscribing!

Does My Computer Need a Memory Upgrade?

More RAM is usually better, but when is it really needed?

A memory upgrade can be an easy, inexpensive way to improve system performance, but how do you know if an upgrade is called for?
The Best of Ask Leo!
RAM chips. (Image:
Do I need to install additional memory? My machine has 2GB of RAM. I have a HP Photosmart printer & therefore am always downloading from my camera to my computer. Wondering if a computer memory upgrade is called for.

Upgrading your computer’s RAM is one of the most cost-effective ways of increasing performance.

However, it’s not a silver bullet. Whether it will actually help depends on many things. And of course, whether you actually can add more memory is something we also need to look at.

Become a Patron of Ask Leo! and go ad-free!


Memory upgrades

When purchasing a new machine, it’s a good idea to ensure you can upgrade the machine with additional RAM in the future. If you find your machine struggling because of limited RAM, then an upgrade — when possible — can be an inexpensive way to improve performance and lengthen the machine’s life. (While you’re at it, consider replacing your old metal-platter HDD with an SSD for even more speed.)


First off, I will say that 2GB (gigabytes) of RAM is pretty small these days. It’s really the bare minimum to run Windows.

It’s rare you’ll want to run Windows at its minimum configuration. It won’t take much for performance to suffer.

I would encourage you to make sure that any new machines on which you plan to run Windows have at least four gigabytes of RAM, and more is better.

RAM is cheap, and over time, Windows and the applications you’ve installed are only going to get larger. What was a reasonable configuration a few years ago is likely to get stressed by updates, new tools, and new applications.

It’s about what you do

How much RAM is appropriate depends on what you do with your machine.

If all you do is download pictures, then what you have might still be enough: downloading and printing pictures is not a particularly memory-intensive task.

But I’m betting you do a lot more with your computer than just download pictures. You probably surf the web, use email, and perhaps even write documents. If you’ve got Microsoft Office installed and you use it regularly, for example, then two gigabytes isn’t enough.

If after downloading those pictures you then fire up an image-editing program to crop, tweak or otherwise adjust them, it’s almost certain that what you have isn’t enough, since image-editing programs often use a lot of resources, particularly RAM.

And if you download photos, check email, surf the web, write documents, and tweak photos all at the same time (leaving all those programs open and running at once), then it’s clear you want more RAM.

Preparing for the future

The limiting factor you need to check before you consider adding more RAM, particularly in older machines, is how much RAM your PC can handle. The maximum amount of RAM you can add to a computer is a physical limitation of the computer’s motherboard.

When buying a new machine, make sure the machine can handle more RAM than you need today. For example, when I purchased my most recent desktop, I ordered it with 64 gigabytes of RAM (my needs are above average Smile). But I also made sure that when the time comes that 64 gigs aren’t enough, I can add more. My computer can support a total of 128 gigabytes of RAM.

In your shoes, I wouldn’t hesitate to add RAM if your machine supports it. If you plan to keep that machine for any length of time, I’d upgrade the RAM to the maximum supported by the motherboard. It’s not only a cost-effective way of improving performance, but it’s also a cost-effective way of lengthening your computer’s useful life.

A different upgrade

One of the upgrades not related to RAM that’s become popular in recent years is the SSD, or Solid State Drive. Chances are if your computer is running an older, traditional, spinning-platter hard disk, you’ll notice an immediate performance improvement if you replace that with an SSD. Windows will boot faster, and your files will copy faster.

It might be worth considering.

Do this

There’s certainly a great temptation to upgrade, to get the latest and greatest, to see if things can be faster or better than they are. But… if it ain’t broke, why fix it? You didn’t say you were experiencing any problems, so even though RAM upgrades are simple and inexpensive, if there’s no real reason, why bother with the expense or risk?

On the other hand, if things are slow or if you see a problem, adding RAM or an SSD is a reasonable first step.

Here’s a great second step: subscribe to Confident Computing! Less frustration and more confidence, solutions, answers, and tips in your inbox every week.

Podcast audio


19 comments on “Does My Computer Need a Memory Upgrade?”

  1. I have a 5-year-old machine that I’ve given to my teens. I upped the RAM to 8GB and got a new direct x 10 graphics card and 320GB hard drive combined price over $100. It now does everything most people would ever need including playing some fairly demanding games. If you don’t play Graphic intensive games or video editing, you can skip the graphic card upgrade and get all you need out of it for a little over $100. Those three things usually have much more impact than a faster processor. And it’s usually much better to replace your old ram with new ram and not just add ram as the new ram is usually faster but when combined with old ram it runs at the speed of the oldest ram you have installed.

  2. Re: Adding Memory
    I have a Compaq Presario R3000 laptop, using 512 memory. Crucial says I can add another 512 or 1Meg. I bought another 512 chip but when I opened the slot, there was only room for one chip! Can it Be? What to do? Charles

    Contact Crucial. It’s possible that instead of adding a 512Meg chip, the existing one needed to be replaced with a 1gig? Or something else is at play.

    – Leo
  3. If you have to ask, I would say you need the extra RAM. For one thing, programmers and web page designers just assume that you have all that memory. They have become lazy over the years, and are not concerned with the resources (i.e. memory) that their software requires. In the past, programs were designed to be compact and efficient, and efforts were made to free up the memory they used once the program was finished. These days, that seems to be at the bottom of the programmer’s priority list. Considering how inexpensive RAM has become, you will only see an improvement by adding more. If you are not comfortable installing it, take your machine to a store that offers computer service and let them do it. Many of them also offer free/inexpensive system analysis, which you would likely find informative regarding future decisions.

  4. There is also the implied question around the phrase “& 1112 MB of virtual memory”. Assuming your hard drive is not also already full, there is no reason not to up that to a much larger number… especially if you are tight on RAM! As RAM fills up, a normal part of the processing of the system is to move inactive portions of open programs to the hard disk… in that “virtual memory” area. Give the system room to store those inactive pages rather than a reason to complain that it is out of disk space. I run all my systems with at least 4GB (for some reason some installs have this as their max, and no, its not due to being a 32bit op sys, remember each process gets their own 2-3GB of private addressable memory, so a 32bit system can easilly be managing much more than 4GB of addressable virtual memory), and many with more (8-12GB).

  5. if i upgrade my gateway sx2370-ur30p from 4gb of memory to 16b do i have to upgrade my hard drive ?it is a 1tb or can i get by with the 1tb

    No. There’s no required relationship between RAM size and hard disk size. If you have enough disk you have enough regardless of how much memory you have.

  6. @Douglass,
    Nope… a memory chip and hard drive are each their own hardware unit. So you can just go ahead and upgrade the memory. A 1 terabyte drive should be plenty!

  7. In your answer you said that there is no relation between RAM and hard drive size. That makes sense, but I’ve read in some places that the recommended swap file size should be roughly twice the size of your RAM. I never understood that. According to your recommendation, I got rid of my swap file when I doubled my RAM to 8GB and it worked perfectly. Do you have any idea why people recommend that the swap file be double your RAM size?

    To be honest, no, I’ve never really understood that recommendation.

  8. My cell phone said a max of 512 MB. I have a 2 GB card in it now.
    I put in a 1 GB in an older laptop that was supposed to have a max of 512 MB. It worked fine.

    Since memory is so inexpensive, if I only had 1 GB of ram, I would first find out if it is on 1 or 2 chips.
    Then I would up to at least 2 GB (2×1 GB?) or 4 GB (maybe 2×2 GB), depending on the computer and situation.

    • In the old days, you could add more RAM beyond what they said the max was, but the BIOS would stop using memory beyond the stated maximum. If you checked how much RAM was actually in the computer, it would be whatever the stated max was, not the size of the memory sticks. I don’t know if this is still true today.

  9. Windows – How’s my real [RAM] and virtual [Page file size] memory doing?
    Windows and the programs it runs are broken up into pages. Because disk space [page files] can be used to extend ‘memory’, the pages can be in either a) ‘Real memory’ [that is RAM] or b) on disk in the page file[s]. RAM is ‘fixed’ [but can of course be changed by adding or removing ‘chips’] whereas page files are specified by the user and are easily changed [although a boot is typically required]. You can ‘run out’ of either, so what can you check on your system.
    The crucial indicator for RAM shortages is the system measure ‘Page Read Delta’. This is measured in pages per second and indicates program pages that had to be moved to disk from RAM and are now needed [because the program is running] in RAM again. This should be 0 or in low single digits MOST OF THE TIME on a system where enough RAM is installed. If it’s not, you need more RAM or to run less ‘stuff’!
    Page file sizing is the subject of much ‘Internet speculation’ but is USER dependent. No formula such as 2 times RAM size is appropriate as the page file size depends on what programs you run at the same time. Every user will be different as it’s based on ‘commit charge’. [The system’s ‘commit charge’ is the total memory used for all running programs and their data plus Windows own requirements : it goes up and down as programs start and stop]. The space used is made up of the total of RAM size plus page file size(s) – this value on any particular system is known as the Commit Charge Limit.
    Windows keeps track of both current and peak ‘commit charge’, the peak being the most ever used since Windows was last booted. The page file size needs to be big enough so that RAM size plus Page file size is larger than the Peak commit charge.
    The simple way to set it is:
    Firstly, set a fixed page file size that’s quite large – about 3 times the size of RAM. [There’s no harm in a Page file that’s bigger than it needs to be]! For a 4GB RAM system , set it to 12GB, for instance and reboot Windows. On such a system, this will set a Commit Charge Limit of 16GB.
    After running a typical mix of the programs you use, check the Commit Charge Peak; subtract this from the Limit and decrease the page file size by this amount.

    • OK, now tell us how to determine the Commit Charge Peak.

      You might also recommend adding two or three exta gigs to the final page file size as “extra wiggle room” for exceptionally or unusually demanding usage.

  10. Leo, you wrote:

    “…If you plan to keep that machine for any length of time, I’d upgrade the RAM to the maximum supported by the motherboard…”

    In that case, why not do that to start with and be done with it? Whether you run out of physical room for more memory now, or in the future… what’s the difference — except maybe increased cost in the future due to inflation or scarcity???

    Leo, you also wrote:

    “…One of the upgrades not related to RAM that’s become popular in recent years is the SSD, or Solid State Drive…”

    Yes, but NOT as your BACKUP drive. As you’ve (Leo) stated in the past, backups should NOT be stored on an SSD, but only on a traditional hard drive (HD). (I can only guess that you don’t consider SSD’s reliable enough for the occasional writing, reading, and static storage demands, of holding reliable backups, although why, in that case, you would consider them to be reliable enough for the much more demanding and constant activity of everyday use, escapes me.)

    • The price of RAM has been coming down over time. So it’s typically been more costly to max out the machine before you actually need it. (Caveat: supply chain issues of the last couple of years are making everything wonky.)

      I don’t recall saying don’t store backups on SSDs, but I could be forgetting. SSD quality has been improving so I’d not be as frightened of it as in the past. It really depends also on what KIND of backups you’re storing. Daily backups that cycle out after some period of time are less of a concern than what I’d call long-term archives, which you expect to keep … uh … long term. I’d default to magnetic disks for the latter.

      • One reason not to use an SSD for backup is the cost. An SSD used for backup wouldn’t add any noticeable speed as backups are usually scheduled to run when you are not using the computer and if they run while you are using the machine, they happen in the background, and you can set them to run on a low priority so as not to slow your workflow.

  11. The one caveat not mentioned about adding more RAM is whether the PC is a 32-bit or 64-bit CPU/OS. A 32-bit system is limited in its addressable memory regardless of how much RAM is installed. In all practicality, 64-bit systems don’t (of course there is a finite limit but it’s way too large to care).

  12. Apologies; all those years ago, I forgot to say that you need the Microsoft tool ‘Process Explorer’ to determine the Commit Charge peak. No other tool that I am aware of will show this value which is the peak usage since Windows was started.
    Run Process Explorer and select View / System Information and select the Memory tab; the value you need is the third entry in the left column below the graphs – Commit Charge : Peak. [Currently 6,260,100 K on my 8GB Win 10 Pro system].

  13. I do a lot of things with my computers, and I experiment a lot, so I use virtual machines for experimentation to protect my host device. As a result, I try to have at least a TB of SSD disk space for VM storage, and at least 16GB RAM on all my computers. I know, I’m not the common user, but this is why how you intend to use your computer should go into what you spend your money on when you buy/build it.

    Leo’s advice to be able to at least double the amount of RAM you have when your machine is new is also very good. After all, what value is there in having RAM you don’t need today as long as you can add more when you need to?

    Other considerations many may not consider include network/Wi-Fi bandwidth capacity for those who do a lot of large downloads or uploads, or the ability to connect more than one display for people who do coding or study computer science, etc. If you’re a gamer, you’ll want to max out everything to get the best performance you can afford.

    These are my thoughts on this subject. I hope they help others,



Leave a reply:

Before commenting please:

  • Read the article.
  • Comment on the article.
  • No personal information.
  • No spam.

Comments violating those rules will be removed. Comments that don't add value will be removed, including off-topic or content-free comments, or comments that look even a little bit like spam. All comments containing links and certain keywords will be moderated before publication.

I want comments to be valuable for everyone, including those who come later and take the time to read.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.