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Thread: question about psus




  1. #1
    Join Date
    Feb 2003
    Posts
    8

    Default

    I'm not really too knowledgable about computers, so I pose this question to people that are. Is it totally necessary to buy big, brand name psus? What is so different from a $20-25 duro or robanton and a $65-70 enermax or coolmax? Just trying to justify paying so much more.

  2. #2
    Join Date
    Nov 2001
    Location
    New England Highlands, Australia
    Posts
    21,907

    Default

    Quality. :)

    Take an elcheapo PSU in one hand and a quality one in the other and ya'll soon know what the difference is plus usually the elcheapo brands load the 12v rail and this is no good as most of the wattage is required on the 3.3v and 5v rails for stable operation of the system. Quality PSU's tend to last much longer as well. ;)

  3. #3
    Join Date
    Aug 2002
    Location
    Ohio, USA
    Posts
    1,296

    Default

    IMHO, a quality psu is one of the most important pieces of equipment for any but the most basic rigs. A cheap one can cause no end of problems with with a system that is even moderately loaded out. When you boot up there is a large initial power drain that is magnified as you add drives, fans, lights, etc. to the system. Many el cheapo psus struggle of fail at this point. The cheap ones may not provide good regulation and cause memory errors during operation. Cheap ones use smaller, less robust components that are more prone to failure and generally have a shorter life expectancy. Cheap ones are less likely to be able to cool their own components properly, let alone assist in case air movement. Other system components can fail prematurely if run at the minimum voltage specs for extended periods (cheap ones can often only supply minimun specs when heavily loaded).
    Spending an extra $40-50us is a pretty cheap investment to to protect the $100's spent on the rest of the equipment and to get the full measure of performance and stability of the components you bought.
    I have succesfully used cheap ones in very basic office computers that I know will never be heavily loaded, but I only use high quality ones in my home machines.

  4. #4

    Default

    You don't build a house roof first, and then work on the foundation last. Same goes with computers...

    Your PSU is your foundation... if it's not built well enough, strong enough, etc... then your house will crumble under its own weight. After you build a good foundation (buy a very decent PSU) then you worry about building the next step... supports (mainboard), building efficient rooms and corridors (buying a decent cpu), etc etc... Just think about building a system logically and don't cut corners :) Can be your worst enemy. If you must, go back on your cpu or memory speed down to what you NEED, not what you want :) (that is, if you don't have enough funds to break from the $20 PSU you've currently got) so you'll have enough for the good psu.

    blah blah blah i'm rambling :D
    <font size=1>Pentium 4 2.53GHz @ 3.515GHz (FSB: 185; VCore: 1.725)</font>
    <font size=1><a href="http://www.thermaltake.com/products/heatsink/v7plus.htm">ThermalTake Volcano 7+</a></font>
    <font size=1><a href="http://www.albatron.com.tw/product/PX845PEV_800.asp">Albatron PX845PEV-800</a></font>
    <font size=1>512MB Samsung DDR333 @ DDR370</font>
    <font size=1><a href="http://www.ati.com/products/pc/radeon9700pro/">Radeon 9700 Pro 128MB</a></font>
    <font size=1><a href="http://www.adaptec.com/worldwide/product/proddetail.html?prodkey=ASC-29160">Adaptec 29160 Ultra160 SCSI Controller</a></font>
    <font size=1><a href="http://www.seagate.com/cda/products/discsales/marketing/detail/0,1081,321,00.html">Seagate ST373405LW 73GB U160 SCSI</a></font>
    <font size=1>Enermax EG465P-VE 450watt PSU</font>
    <font size=1>CPU Temp (100%): 39 C; HDD Temp (100%): 31 C (100%); Chipset Temp (100%): 32 C</font>

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