Is 400W enough?

Hello guys, thanks so much for such an informative forum. I have a quick question about PSU wattage:
How many watts must I have, and what determines this number for future reference? Heres the parts (New Egg):

- LG 22X DVD±R DVD Burner Black SATA Model GH22NS30 - OEM

- Rosewill R363-M-BK Micro ATX Black Ultra High Gloss Finished Computer Case with 400W ATX 2.2 12V Power Supply - Retail

- SAMSUNG Spinpoint F DT HD502IJ 500GB 7200 RPM SATA 3.0Gb/s 3.5" Hard Drive - OEM

- mushkin 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model 996587 - Retail

- AMD Athlon 64 X2 6000+ Windsor 3.0GHz Socket AM2 125W Dual-Core Processor Model ADX6000CZBOX - Retail

- ASUS M3N78-EM AM2+/AM2 NVIDIA GeForce 8300 HDMI Micro ATX AMD Motherboard - Retail

Thanks in advance!
9 answers Last reply
More about 400w enough
  1. A good 400 watt PSU will be enough. However, the 400 watt Rosewill is not a good PSU.
  2. A 300W Seasonic would be more than enough.
  3. What video card do you have?
    SLI or Crossfire?
    Are you a hardcore gamer?
    Do you overclock?
  4. thetermy said:
    Hello guys, thanks so much for such an informative forum. I have a quick question about PSU wattage:
    How many watts must I have, and what determines this number for future reference? Heres the parts (New Egg):

    - LG 22X DVD±R DVD Burner Black SATA Model GH22NS30 - OEM

    - Rosewill R363-M-BK Micro ATX Black Ultra High Gloss Finished Computer Case with 400W ATX 2.2 12V Power Supply - Retail

    - SAMSUNG Spinpoint F DT HD502IJ 500GB 7200 RPM SATA 3.0Gb/s 3.5" Hard Drive - OEM

    - mushkin 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400) Dual Channel Kit Desktop Memory Model 996587 - Retail

    - AMD Athlon 64 X2 6000+ Windsor 3.0GHz Socket AM2 125W Dual-Core Processor Model ADX6000CZBOX - Retail

    - ASUS M3N78-EM AM2+/AM2 NVIDIA GeForce 8300 HDMI Micro ATX AMD Motherboard - Retail

    Thanks in advance!


    Well for the above config without a discrete graphics card, that 400W can handle it...
    But like others said...it is a low quality powersupply and will not be able to handle anything more than your current config, mayb not even a slight overclock...
    So better off buying a very cheap case + high quality PSU...

    Mayb these...
    Case -
    http://cmstore.coolermaster-usa.com/product_info.php?cPath=18_19&products_id=83&osCsid=9ae6ecd38260acbd88116d766e3346dd

    PSU -
    Preferably these...They can easily handle a ATI 4830 along with your current config...
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817371005
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139008

    Totals $70...
    The extra $20 will give you a high quality PSU and a descent case...
  5. Based on the informative replies, I changed the case to http://cmstore.coolermaster-usa.co [...] 766e3346dd and I changed the PSU to Rosewill Stallion Series RD450-2-DB 450W ATX V2.2.

    Thanks :)
  6. Hi I know this is resolved now but for future reference or an one else that may read the thread there is a section on the Asus website that you can use for all your power questions the link is below

    http://support.asus.com/PowerSupplyCalculator/PSCalculator.aspx?SLanguage=en-us
  7. thetermy said:
    Based on the informative replies, I changed the case to http://cmstore.coolermaster-usa.co [...] 766e3346dd and I changed the PSU to Rosewill Stallion Series RD450-2-DB 450W ATX V2.2.

    Thanks :)


    Rosewill is still a poor choice.
  8. I disagree strongly. I do custom small-batch systems for businesses, and I commonly use just that case for office machines and other small systems. It does a great job powering most systems, up to and including Q6600 systems. I still wouldn't put a big VGA card in there, but for most things, it's just fine. As to rosewill in general, I have the new 700w single 12v rail PSU running my system with an i7 920 @ 3.7GHz and 2x 4870's in crossfire. It as stable as can be.
  9. DEAD thread. Also read reviews on JG or [H].
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