Brandon asks “Does it matter how I unplug my computer?”

02/14/2013
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Brandon is wondering if there’s a specific sequence in which he should plug in or unplug his computer to prevent electrical damage. The hosts of Deemable Tech, Ray Hollister and Tom Braun, help him out in this week’s Ask Deemable Tech.

RAY: Hello, I’m Ray Hollister,

TOM: I’m Tom Braun,

RAY: and we’re the hosts of Deemable Tech. On the show, we answer your questions about computers, tablets, mobile phones and the Internet, like this question:

TOM: Brandon asks: Does it matter in which order I unplug my computer? For instance, if I want to move my laptop from the living room to my bedroom, but I want to keep playing Minecraft, should I unplug it from the wall first, or should I unplug the cord from the laptop first? I think I saw a spark one time and it worried me that I could do some damage to my laptop if I’m not doing it right.

RAY: Good question Brandon. It used to matter a lot because computers were really delicate. They weren’t designed to stand up to any abuse, and they were really easy to break. It doesn’t matter that much now, because most modern laptops have been designed to perform without problems regardless of how you plug them in or unplug them. However, when you are plugging in and unplugging your computer from the wall, there is a chance that you could have an arc of electricity that could cause damage to your computer. It’s rare, but it could happen, and it sounds like it has already in your case. If you really want to be safe, when you unplug your computer, you should first remove the plug from the laptop, then remove the plug from the wall, and go in reverse order when you plug it in.

TOM: So when you’re plugging something in, first plug the cable into the wall, then plug the cable into the laptop. When you’re unplugging it, unplug the cable from the laptop first, then unplug it from the wall. So the rule of thumb is: start at the wall when you’re plugging something in, and start away from the wall when you are unplugging something. Is there anything else that Brandon could do to be safer?

RAY: Well, yeah. Ideally, you should always use a surge protector for your computer. Surge protectors prevent your device from being damaged by lightening or just regular electrical surges that can damage your computer while it is plugged in. Some laptop power bricks have surge protectors built into them, but it’s still a good idea to plug a surge protector into the wall, and then plug your computer into the surge protector. Make sure that the surge protector you are using has a high enough joules rating for what you are using it for. The higher the number, the greater the protection. So, you want a surge protector with at least 200-400 joules of protection, but greater than 600 is best.

TOM: Yeah, for instance I live in an older home with very few grounded electrical outlets.

RAY: Those are the ones with the three prongs, right?

TOM: Yup. So I have to run a long cord to my desk and then power everything off of one surge protector: my computer, my sound system, my lamp, and some other devices. So I made sure that it was highly rated so I could do that and feel confident that nothing would explode.

RAY: Right, Tom. Now if you have a legitimate cause for concern, such as a loose connector or a bad electrical outlet, you should also turn your laptop off first, before you disconnect it, even if it does cost you points in the game. Obviously, though, you still need to get the problem fixed. You either need to hire an electrician to replace the outlet, or you can find a new connector for your laptop online or at a retail store. If you don’t fixed what caused the spark, you may have a bigger problem on your hands than a bad score in Minecraft.

TOM: Yes. Fire bad! Minecraft good. But fire bad!

RAY: To hear more answers to questions like Brandon’s, listen to our show at Deemable dot com, that’s D-E E-M A-B-L-E dot com. There you can listen to all of our previous episodes and, subscribe to our podcast.

TOM: If you have a question for Deemable Tech give us a call us at One Eight Eight Eight, Nine Seven Two, Nine Eight Six Eight, or you can send us an email at questions at deemable dot com.

RAY: For Deemable Tech, I’m Ray Hollister

TOM: And, I’m Tom Braun.

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