Does the brand of ps matter?

if i buy a generic one, what are possible problems?

thanks!
12 answers Last reply
More about does brand matter
  1. Really cheap generic PSUs won't be able to handle the wattage that they're rated at, and normally cannot deliver much amperage on the 12 V rail.
  2. Also the voltage stability is often poor and sometimes out of ATX specifications. If overloaded (which applys for below there rated power as meow said) some lack over current protection and will thus smoke up instead of just shutting off. They often have a much shorter life than branded PSUs also and can more likely take the whole system with it.

    Always buy a good PSU, even if it means sacrificing some performance. Hope that helps.
  3. Hello ComputerNewb;
    It can matter very much. Generic power supply pitfalls
  4. i have a coolmax 600w ps. are coolmaxes any good? bought it for 40 bucks
  5. There are good PSUs.
    There are average PSUs.
    There are bad PSUs.
    And below that there are Coolmax PSUs. (and a few other brands, to be fair).

    You may not have any problems though, especially if you're PC isn't drawing more than 300W DC.
  6. :lol:
    Coolmax PSU's are right down at the bottom of the list.
  7. is there a software where i can monitor how much wattage it is actually supplying?

    edit: also how much wattage do you think my psu actually gives?
  8. If you list all your parts we can make an educated guess for you.
    Or you can try one of the online PSU calculator like this one.
    It's going to calculate a recommend SIZE of PSU - not it's actual power draw. So subtract about 40% and you should be in the ballpark.
  9. Can you list the specific model? Coolmax has quite a few different models.
  10. NewEgg is showing 4 models of Coolmax PSUs ATM. Including a $55 model with a $20 rebate.
    Did you have any trouble getting a rebate from Coolmax?
  11. WR2 said:
    If you list all your parts we can make an educated guess for you.
    Or you can try one of the online PSU calculator like this one.
    It's going to calculate a recommend SIZE of PSU - not it's actual power draw. So subtract about 40% and you should be in the ballpark.



    i have this mobo

    http://www.newegg.com/Product/Product.aspx?Item=N82E16813138155&cm_re=BioStar_TA785GE_128M_AMD_785G_AM2%2b_Motherboard-_-13-138-155-_-Product

    amd phenom ii x4 965 stock heatsink and fan

    sapphire ati radeon hd 4670 1 gig

    2x ddr2 667 240 pin memory sticks

    4x 120 mm Rosewill led case fans

    western digitial 250 gigs sata hard drive

    a crappy old dvd burner.

    coolmax 600w power supply. not relaly sure the model.

    i think its something like this one http://www.directron.com/v600.html
    bought it from frys
  12. That Coolmax V-600 is actually a 581.5W PSU.
    Not a lot of customer reviews @ NewEgg but it's considerably lower than you like to see the ratings.


    The good news is that your system is using less than 250watts DC power, probably closer to 200watts under load.
    The PSU calculator recommended a 292watt minimum reqd PSU and a recommended 342watt PSU.
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