What power supply do I need (watts)?

Hey, building my first system, will have

i5 - 3570K
Gigabyte z77-D3H
Corsair vengance 2x4GB 1600MHz RAM
120 GB ssd (PNY XLR8)
DVD drive
It will have three case fans (HAF 912 case (2x200mm, 1x120mm))

System will be running windows 7 if that helps

I have heeded warnings not to skimp on the PSU, so what sort of wattage will I need and from experience what is the best make/most reliable?

Cheers
Simon
7 answers Last reply
More about what power supply watts
  1. Are you planning on getting a discrete video card/GPU? Or planning on just using the integrated graphics. Otherwise, something like a 430W efficient PSU (there's a variety of brands like Seasonic, Antec, etc.) will be more than enough for a basic build.
  2. If you're going to be doing any further upgrades on it (E.g dedicated graphics card) then you should be getting at least a xfx 550w core edition PSU (its one of the PSU's that seasonic makes) If not, Like drg889 said.. You're okay with a 430w 80+ rated PSU
  3. 500watts would do it. whats ur budget?
  4. monki32 said:
    Hey, building my first system, will have

    i5 - 3570K
    Gigabyte z77-D3H
    Corsair vengance 2x4GB 1600MHz RAM
    120 GB ssd (PNY XLR8)
    DVD drive
    It will have three case fans (HAF 912 case (2x200mm, 1x120mm))

    System will be running windows 7 if that helps

    I have heeded warnings not to skimp on the PSU, so what sort of wattage will I need and from experience what is the best make/most reliable?

    Cheers
    Simon


    PSU budget is £40 - £70.
    Won't be putting a graphics card in it till August.
  5. monki32 said:
    Hey, building my first system, will have

    i5 - 3570K
    Gigabyte z77-D3H
    Corsair vengance 2x4GB 1600MHz RAM
    120 GB ssd (PNY XLR8)
    DVD drive
    It will have three case fans (HAF 912 case (2x200mm, 1x120mm))

    System will be running windows 7 if that helps

    I have heeded warnings not to skimp on the PSU, so what sort of wattage will I need and from experience what is the best make/most reliable?

    Cheers
    Simon


    Hi - 350w will power what you have - Even tho you are not adding a gpu at this time
    you will most likely do so in the future. A quality 500w unit will allow
    you to run a system with any current gpu out there below amd7970 or NVidia680,
    and even those if it has sufficient +12v amps

    emphasis on quality - if you buy too cheap, you will usually have to buy
    twice or more.
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