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Windows 7: How to Pick the Right Power Supply

16 Nov 2011   #1

64-bit Windows 10 Pro
How to Pick the Right Power Supply

The Role of the Power Supply

The power supply is an oft-underappreciated component. Everyone knows it’s necessary, and most people who build their own PCs have some understanding of the basics of what a power supply does. But almost everyone tends to buy more power than they really need, or they’ll buy the cheapest PSU that delivers the wattage they think they need.

We’re not going to get too deep into the inner workings of the PC power supply, but it’s worth talking a bit about the basics of how they work before we dive into what to buy. Note that all references to household current are U.S. numbers, so adjust accordingly if you’re reading this in a different part of the world.
Read more at:
Maximum PC | How to Pick the Right Power Supply

My System SpecsSystem Spec
16 Nov 2011   #2

Windows 10 Pro

Seeing that this is a sticky I'd like to add some links from my Tips on Troubleshooting Game Issues guide.

Info on power supplies …

- Everything You Need to Know About Power Supplies | Hardware Secrets
- How to Buy a Power Supply - wikiHow

And if you're looking for a good place to review power supplies look here -
My System SpecsSystem Spec
16 Nov 2011   #3

64-bit Windows 10 Pro

My System SpecsSystem Spec

17 Nov 2011   #4

Windows 10 Pro. EFI boot partition, full EFI boot

My System SpecsSystem Spec
04 Dec 2011   #5
Big Tom

Windows 7 Professional x64

this thread was a great read. thanks
My System SpecsSystem Spec
26 Jan 2012   #6

Windows 7 Ultimate x64
Truth is...

It happened to me, I bought a 680w PSU thinking I knew more than I did about them. Didn't offer enough amperage on the 12V rail for my GPU (only pushed 24A). I ended up having to buy another one (Corsair Enthusiast Series 750TX V2) to make up for the one that wouldn't even boot my new build. Lost out on 60 bucks. Lesson learned: Do your research before buying a product - even if you think you know enough to make it happen.

Anyway, check out the GURU. They know what they're talking about.

The "power supply FAQ" - jonnyGURU Forums
My System SpecsSystem Spec
28 Feb 2012   #7

Windows 7 Ultimate x64

I highly recommend checking out Newegg's wattage calculator before buying a new power supply. - Recommended Power Supply Calculator.
My System SpecsSystem Spec
10 Apr 2012   #8


Most users won't need to get that detailed, as the wattage and amperage issues are the most important and can be estimated. The other key issue is that you get what you pay for, and that means that you need to find a good brand and avoid the "sale" white-box power supplies that you often see in computer shops. Check every details on it and be more observant on what you buy.
My System SpecsSystem Spec
16 Apr 2012   #9


A few of my Power Supply reviews are listed in the Review Data base.

First I heard of this resource was today.
My System SpecsSystem Spec
20 Jul 2012   #10

Windows 7 Ultimate x32

thank u man that was very useful
My System SpecsSystem Spec

 How to Pick the Right Power Supply

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