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Chieftec BPS-450S: Measurements

Sub-$75 Mainstream Power Supply Roundup
By , Patrick Afschar

Efficiency in accordance with the 80 PLUS specification:

Efficiency under different load profiles:

Chieftec scores well in the efficiency measurements, trailing only the Antec EA-380D Green. Topping out with 87% efficiency at 230 V is a great result. At 230 V, the Chieftec BPS-450S and the Antec EA-380D Green are pretty much equal. Chieftec is slightly better when it comes to hold-up time and temperature, though, and the PSU is very quiet.

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  • 0 Hide
    mi1ez , 10 October 2010 19:29
    1) Stop moaning about PSU.s that aren't available in the US.
    2) Where are the actual voltages for each rail? It feels like most of this test is missing!
  • 0 Hide
    swamprat , 11 October 2010 17:53
    I can't say I've read every page - but are there noise readings anywhere as well as the occasional comment like "it's quiet"?
  • 0 Hide
    Anonymous , 21 October 2010 16:39
    Small PSU means desktop/media.... and since the conclusion was "they're all pretty similar" then noise is going to be one of the main selection criteria. So... no real help in choosing :( 
  • 1 Hide
    stone-69 , 25 October 2010 18:22
    Uhm... just a newbie question :
    Are cheap PSUs really that bad ?
    I mean I've seen a lot of people basically saying that a cheap PSU will make your PC explode (or something along that note), but I've seen very few thorough reviews of cheap PSUs testing ripple, noise and voltage drops.
    Could this be an idea for a future article ?