Choosing ATX Power Supplies for Computers

If you are in the process of building your own PC or just replacing a defective power supply, the chances are that you’re going to need a new power supply conforming to the ATX form factor. Obtaining ATX power supplies shouldn’t present any problem at all. However, making sure you get the right ATX power supply for your computer does require a bit of homework.

To help you on your way to choosing the correct power supply, here are a few buyers tips that should prove useful.

Make Sure it Fits

Getting the right size ATX power supply isn’t too difficult. The only risk is that without first checking, you could buy one that’s too big for your computer case. You need to choose a power supply of a height, width and depth that your case can accommodate. If you are replacing an existing power supply, then you can take the measurements from the supply you are to replace. If your power supply is for a new build, you might just have to gauge it as best you can.

You Can’t Have Too Many Connectors

It’s fine to buy ATX power supplies with more connectors than are necessary, or even one with connector types that you don’t require. It’s not OK if you buy one that’s missing connectors you do need though. It makes sense to choose a power supply with connectors which meet your every need. Here is a run-down of the connectors you may need:

* ATX Connector – This is the connector which plugs into your computer motherboard. Be sure the power supply you buy has the correct ATX connector for your computer. Some motherboards require a 20 pin connector, while others require a 24 pin version.

* CPU Connector – This connector also plugs into the motherboard but supplies the power for your computer’s CPU. Depending on your motherboard, the power supply will need either a 4-pin or 8-pin connector.

* Molex Connector – Your power supply will need a number of molex connectors which are used to power hard drives and CD-ROMs. It’s always better to have too many of these than not enough.

* Floppy Connector – While today’s computers no longer have floppy drives, some card readers make use of the floppy connector. It’s wise to buy a power supply which has one of these connectors.

* AUX Connector – Some mother boards have a slot for an AUX connector. If your motherboard has a slot for this connector type, it’s likely you will need an AUX connector on your power supply.

* SATA Connector – Devices requiring SATA connectors, particularly hard drives are becoming more common. It’s advisable to buy a power supply which has some of these connectors.

Finally, remember that it’s Okay to buy a power supply which delivers more power than your computer needs. However buying a power supply which is under-sized will result in problems, so be careful about this point when you make your purchase. click here for more info.

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