How to Buy Power Supplies for a Computer

Video Transcript

On behalf of Expert Village.com my name is Don with Friendly Computers and I'm here today to tell you a little about power supplies. So we moved the cameras back into our shop where we do most bench repairs. Now the first thing is if your computer has failed and won't start up chances are pretty good that it could simply be the power supply. Now that you've determine that there's a lot of things that you have to know in order to buy a replacement. There's several different sizes that are standard. This is the mini ATX type power supply comes in a lot of smaller HP's and some of the smaller foot print type machines. And this is a standard ATX size that comes almost any type of machine other than that. There's also a couple of custom sizes and there are some that are standard ATX just a little bit shorter. Now as you can see there's a difference between the size of the foot print of these and well as where they can attach the back of the case. One of our technicians Luke is going to be showing you the next few clips how to install the power supply once you purchase it. Now beyond the fact of what size power supply you physically need. Then there's a lot of decisions about things about how many watts. Most computers today come about an average of a 3 to 4 hundred watt power supply. Which is more than adequate for most machines. However, you maybe running additional hard drives you may want to run some higher end On behalf of Expert Village.com my name is Don with Friendly Computers and I'm here today to tell you a little about power supplies. So we moved the cameras back into our shop where we do most bench repairs. Now the first thing is if your computer has failed and won't start up chances are pretty good that it could simply be the power supply. Now that you've determine that there's a lot of things that you have to know in order to buy a replacement. There's several different sizes that are standard. This is the mini ATX type power supply comes in a lot of smaller HP's and some of the smaller foot print type machines. And this is a standard ATX size that comes almost any type of machine other than that. There's also a couple of custom sizes and there are some that are standard ATX just a little bit shorter. Now as you can see there's a difference between the size of the foot print of these and well as where they can attach the back of the case. One of our technicians Luke is going to be showing you the next few clips how to install the power supply once you purchase it. Now beyond the fact of what size power supply you physically need. Then there's a lot of decisions about things about how many watts. Most computers today come about an average of a 3 to 4 hundred watt power supply. Which is more than video cards. Perhaps you'd like to add second DVD drive and power a few other devices out of your USB ports. Maybe your power drive power needs a little more than average, or maybe your machine has been running just a little to hot. And actually a power supply with higher wattage can help in all those circumstances. So perhaps you decided you know I need much more power, power supply. You can get a nice 550 to 600 power watt power supply and if you get the professional series with duel rails and separated power things and extra quite fans there a little bit more expensive than the average power supply but they last long time, generally come with as much as 3 years. Of course if your into high end gaming and you want to run duel video cards then most manufactures are recommending 800 watts or more. Now that sounds like it's a lot and it is, but great 800 to 1100 watt power supply is available most anywhere that sales computer parts. We carry ones thats 800 watts here that run up to $260. So you can see versus a 40 or 50 dollar power supply it's a big investment. Make sure you know your needs before you make your decisions.

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