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When it comes to picking out RAM, though, things can get a little confusing. How many individual modules should you use? What’s the difference between DDR 3 RAM and DDR 4 RAM? Can different types of RAM be mixed together?

In this article, we’ll provide a newbie-friendly primer on RAM, explain the different DDR speeds, and outline which types of RAM are best for PC gaming.

The RAM you use for a gaming PC is called SDRAM, or Synchronous Dynamic Random-Access Memory. SDRAM is also divided into a number of speed classes using the Double Data Rate (or DDR) classing system. There’s also a second type of RAM called Graphics DDR (or GDDR) RAM which is designed for graphics cards, but for the scope of this article we’ll just focus on DDR SDRAM for motherboards.

Each module of DDR SDRAM is produced as a sort of long stick with memory chips fused onto the sides. Along the bottom of each RAM stick is a series of pins, and those pins are meant to match the DIMM (Dual Inline Memory Module) slots on your computer’s motherboard. Typically, most motherboards have a total of four DIMM slots, though some have more or less than that.

The amount of memory on a single RAM stick can vary, with higher capacity sticks being more expensive. Most non-gaming computers have between 2-4GB of RAM, but for high-end gaming you’ll definitely want at least 8GB, and preferably 12-16GB if you’re able. Just know that more RAM means more strain on your computer’s power supply and CPU so make sure your other components can handle the load.

For more on how much RAM you need for your system, check out our guide:

RAM is pretty easy to install into your computer’s motherboard as long as you’re doing it correctly. The pins on the bottom of each RAM stick are notched, which means the RAM modules can only be inserted into the DIMM slot one way. Also, if you’re using two RAM modules at once, you want to make sure they’re inserted into matching DIMM slots on your motherboard (these slots are usually color-coded and oftentimes not right next to each other).

Lastly, you should make sure your RAM’s DDR type (more on that in a moment) is compatible with your motherboard (not all motherboards accept all DDR types). Most modern motherboards only support DDR4 as of this writing, but some still support DDR3. It’s important to check your motherboard’s documentation and make absolutely sure that your motherboard supports the type of RAM you’re considering.

As we mentioned above, DDR stands for Double Data Rate. This is a natural evolution of the now obsolete SDR (Single Data Rate) SDRAM, and over the years the base DDR version has been surpassed by DDR2, DDR3, and DDR4 SDRAM (with DDR5 set to arrive in the next year or so).

As of this writing, DDR4 SDRAM is considered to be the baseline standard in PC gaming. However, you can get away with using DDR3 if you want to save a little money and/or you’re not building a super high-end rig.

Each increasing DDR class outperforms its predecessor when it comes to elements like clock speed, performance, bus speed, and throughput. In fact, DDR and DDR2 SDRAM are virtually obsolete as of this writing (most modern motherboards only support DDR4, though you can still find plenty of DDR3-compatible models). In terms of performance DDR4 does offer a boost over DDR3 (though it might not always be something you actually notice in games), and it has become commonplace enough that you’re usually better off going with DDR4 just for the sake of future-proofing your system.

If you want to dive into the technical weeds a bit, here’s a chart outlining the differences between standard SDR SDRAM, DDR, DDR2, DDR3, and DDR4.

If you’re picking between DDR 3 and DDR4 RAM, the only issue you have to consider is cost vs. performance. As we mentioned above, you likely won’t notice a huge difference between DDR3 and DDR4 RAM unless you’re playing the newest games at ultra settings on a high-end PC. However, DDR4 has almost completely eclipsed DDR3 when it comes to retail availability. Unless you’re really trying to save money, you’re usually better off going with DDR4 just to give yourself less of a shopping hassle.

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Worried your past posts will come back to haunt you? Fortunately for you, Facebook has a tool that lets you archive your old Facebook posts in bulk so that they’re hidden from everyone but yourself. Here’s how it works.

Rather than only restricting certain people, the Archive function on Facebook effectively reduces the audience that can see the post to just you. Even if someone else has the direct URL to a post you are made, the content will be inaccessible. Conveniently, the instructions for doing this are virtually identical whether you’re using Facebook on the web or via a mobile app.

RELATED: How to Restrict Someone on Facebook

To hide an individual post, you first need to find it on your profile. Click or tap on the ellipsis “…” in the top-right corner of the post box, then choose “Move to archive” in the drop-down menu. The post will disappear and you’ll see a notification that it was moved to your archive, with a link to follow if you want.

You can also do this to multiple posts at once, making it easy to manage a backlog of posts that you no longer want friends to see. You can do this via the Manage Posts tool on your Activity Log.

To access this on the web version of Facebook, click on the downward-facing arrow in the top-right corner of any page, then choose Settings & Privacy > Activity Log. Click on “Your posts” in the left-hand menu to see a list of posts. You can use the checkboxes next to posts to select as many as you like, then click “Archive” to send them to the archive.

This works virtually identical on Facebook’s mobile apps. To get to Activity Log, however, you’ll need to tap on the “More” tab (it looks like three horizontal lines), then tap on Settings & Privacy > Settings and choose “Activity Log” under the “Your Facebook information” section. You can now tap “Manage Your Posts” to bulk-archive or delete.

RELATED: How to See What Data Facebook Has on You

While posts are archived, they are only visible to you. You can make any of these posts visible again by visiting your Archive, accessible via the Activity Log.

To get there on the web version of Facebook, click on the downward-facing arrow in the top-right corner of your feed then choose Settings & Privacy > Activity Log. From here you can click on “Archive” in the left-hand menu to see your posts. Use the checkbox to select them and, and click the “Restore” button to move them out of the archive.

On mobile, hit the “More” tab (it looks like three horizontal lines) then Settings & Privacy > Settings. Scroll down and tap on “Activity Log” then choose “Archive” to see your posts. Use the checkboxes to select and restore them.

If you do want to get rid of posts permanently, choose “Move to Recycle bin” instead of “Archive” when managing posts. Anything in the Recycle bin (also accessible from Activity Log) will be permanently deleted after 30 days.

While you’re tidying up old posts why not brush up on a few Facebook privacy basics too?

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