Power supplies – How to make the right choice


Hey guys Linus Sebastian here for Corsair. So on the surface buying a power supply seems like it should be pretty
straightforward, right? Figure out how much wattage your battle station
requires. Pick a model rated for at least that much and then start plugging in
components, right? Wrong! It turns out that there’s a lot more to consider when
deciding on a power plant for your next rig. As the wattage listed on the box is only part of the story. You see other important factors like reliability, efficiency, build quality, and noise levels, can vary wildly between models. So, how do you know what to choose. Well after you’ve figured out how much wattage you need you can use a reputable third-party site like PC part picker. It’s important to realize that some more unscrupulous brands, can label their power supplies with peak wattage instead of what they can deliver continuously. So even if your discount bin power supply is labeled for let’s say 600 watts it could still easily fail on you, sometimes spectacularly if your computer ever actually draws that amount, especially if you’re running it in a warmer room. But CORSAIR power supplies are all rated for continuous output at the stated wattage, so when CORSAIR says 600 watts they mean 600 watts all the time. This is because CORSAIR uses internal components that are built to handle continuous draws. Even their more value minded VS and CX series, because low cost shouldn’t mean low performance. But going beyond just knowing that your power supply will work when you need it to. Efficiency is also important to keep your energy costs and your heat output down. One good way to check efficiency is to take a look at the power supplies 80 PLUS rating. This uses a precious metal system to give you an idea of how efficient your unit is. All of CORSAIR power supplies meet at least the baseline 80 PLUS standard. With many models offering gold-level efficiency and even class-leading platinum and titanium level performance at the high end, and some power supplies are also modular. This means that they allow you to plug-in only the cables that you need for your build, to avoid having a messy bundle of extra wires cluttering up your case. With many enthusiasts, as well as first-time builders, getting serious about cable management these days to improve air flow and aesthetics most of CORSAIRs power supplies are either semi or fully modular. Of course, a good power supply also needs to run quietly. I mean after all it’s hard to enjoy your games if your power supplies fan sounds like your computers trying to take off next to you. Fortunately all CORSAIR power supplies are engineered for quiet operation, and select models feature a zero RPM mode, when the power supply is idle and thermal control that only spins up the fan when required, and with rifle or fluid dynamic bearing fans you’ll get quiet performance even when your power supply is working hard. Then for those of you who want to choose between single or multi rail power supplies, fear not because CORSAIR has you covered there too. They offer both single and multi rail models with the difference being that a multi rail power supply puts different components on different DC circuits. So, that was a lot of information. How do you know which CORSAIR power supply is right for you. Well after you’ve picked your wattage, and that is still important, keeping in mind that higher wattages will give you more headroom for expansion later and can drive more components, like high core count CPUs and multiple graphics cards. You have a look at the features that you get with each CORSAIR series. For a reliable experience at a competitive price point, check out the VS and CX series and remember that the CXM are semi-modular for a cleaner look. Stepping up to RMX and TXM you’ll get quieter performance 80 PLUS GOLD efficiency and long lasting Japanese capacitors inside. The HX series CORSAIRs longest-running series, features premium performance, a fully modular experience, and 80 PLUS platinum efficiency, making it a truly high-end option. Then for the ultimate power supply for your rig be sure to look at CORSAIRs AXI Series which features less than 1% voltage regulation for incredible stability if you’re an extreme overclocker. These guys also rock up to 80 PLUS titanium efficiency and they’re available in capacities of up to 1600 watts of continuous power, to make sure that even the most demanding systems keep running without a hitch. Plus the top-end AX1600i comes with state-of-the-art gallium nitride transistors, and remember all the models that end with an “i” are compatible with CORSAIRs iCUE software interface. Which allows you to control and monitor all compatible CORSAIR products right from your desktop. Including, your power supplies noise and performance levels and no matter which power supply you choose you’ll be backed with between a three to ten year warranty for peace of mind. So to find out more head to CORSAIR.com and check out CORSAIRs full lineup of power supplies.

100 thoughts on “Power supplies – How to make the right choice

  1. Me: Tries to choose which power supply is better EVGA or Seasonic.
    This video: Which Corsair power supply is better for you?

  2. I once bought a corsair PSU but the coilwhine made me return it a week later.

  3. Just buy a Seasonic PSU, they are the supplyers of Corsairs PSUs ether way and they have better warranties, I ordered my Prime 750W Titanium and it has 12 years of warranty.

  4. If I were to rate desktop PSU brands, I guess be Quiet!, Corsair and Bitfenix would take the top. They have least amount of shitty units (the only senseless product on BQ lineup is Power Zone, Corsair's low end VS series is still better than Seasonic's or EVGA's and Bitfenix has basically 2 series available, Formula Gold and Whisper M, both of which are good units).

  5. Always Corsair PSUs, gold or above. My latest is the HX850i, it is 'everything that you expect from a tier one unit'.

  6. This video is brought to you by Tunn, "o wait a sec, yea ok let try it now."…. This video is brought to you by CORSAIR.

  7. Sneaky. I was wondering why linus was promoting corsair so much, then i saw this is posted on corsairs website and is just a ad basically

  8. I bought a VS 650 for my Rtx2060 and r5 2600 because i thought only the Wattage was important XD After reading some forums and everyone telling me that my PSU will fry my components, i just ordered a TX550M. Did i make the right choise? or was this stupid

  9. Someone can help me? I'm trying to open my vs450 but there are no screws that keep the psu together, I see just 4 screws for the fan

  10. I have been working with computers since basic (1984). I still get caught up on what kind of PSU to choose. Also, everyone has their own shitty opinion on power supplys.

  11. So this is an advertisement for Corsair power supplies. Thanks for the brand by brand comparisons I was looking for. Fucking sellout

  12. righttt at it..looks right at 100-120mv of ripple getting in and old…filters…should change the shit with something.

  13. I thought this was linus tech sponsored by corsair. And i look down its corsair channel. Didnt expect that at all.

  14. How much higher can you go then what is rated for your rig? I want room to expand but dont want it to blow up. (I'm a novice builder)

  15. So I live in us and will be moving to Europe I know USA is 120 and Europe is 220 to 240 so question is what will i have to look for when i purchase it?

  16. Sir I'm thinking to buy z390 motherboard and i5 9400f paired with gtx 1660 ti with 2*8gb ram. For over clocking and normal usage how much watts SMPS I need to choose please help me.

  17. You had me at Japanese capacitors, been running a CX650 for two years and very happy with it. I'm about to pull the trigger on a 2080ti so i'm thinking a RM750i is on the cards, will get rid of the rats nest of wires in the bottom of my rig too

  18. Title: How to choose the right power supply

    Basically means: This is an ad for Corsair, so buy them everyone else sucks 😉

  19. Also did you re-brand yourself to a young, less- important Linus? Because, I'm a little impressed by this preformance, script, and simplicity. Also this little reminder blvideo is always cool.

  20. Ok so the estimated wattage for my pc is 334 should I buy a Corsair VS 500 -500 watts power supply?? Cuz I am completely confusion

  21. I'm running 6 LL120 corsair RGB fans and I have a CX650M Psu . Only 3 of my rgb fans are lighting up. Do you think this is a PSU problem ? Do I need more watts ?

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