A card i want to get requires a 450w PS with a max amp output of 28amps on the 12 volt rail. Anyone know where i can get a good cheap 1? no more than $150? Will this one work? http://www.bestbuy.com/site/olspage....=1142292375112

Will this PS support the requirements for the card? Or should i get a dif PS? any opinions? thanks

Hi wishb0n3 and welcome to Tech Help Forum.

Originally Posted by wishb0n3

A card i want to get requires a 450w PS with a max amp output of 28amps on the 12 volt rail. Anyone know where i can get a good cheap 1? no more than $150? Will this one work? http://www.bestbuy.com/site/olspage....=1142292375112

Will this PS support the requirements for the card? Or should i get a dif PS? any opinions? thanks

I would suspect the card you want does not require a maximum, but rather a minimum of 28A on the 12 volt rail.

That said, good for you for ensuring you have adequate power - so many folks just keep upgrading and adding parts without considering the demands on the PSU.

Unfortunately, the BFG you linked to does not list the specifications. However, the same supply is available from Newegg (for $50 less!) and some of the specs are listed there. If you add up the +12V ratings, they are more than the 28A your card requires so technically, that supply should work.

However, I cannot find any good reviews for that product and I am unhappy that even the BFG webpage does not list the supply's efficiency. That is not a "cheap" supply and so I would expect good efficiency (preferably 80% or better). Since none is listed, I can only assume it is not something BFG is proud of. A review of the similar BFG600W PSU by PC Perspective found the PSU to be stable, but loud and inefficient. If me, I would go with a different brand.

I generally stick to the brands listed under the "Good" column of PC Mechanic's PSU Reference List.

To see what size supply you need, use the eXtreme PSU Calculator Lite to determine your power supply requirements. Plug in all the hardware you think you might have in 2 or 3 years (extra drives, bigger or 2nd video card, more RAM, etc.). Be sure to read and heed the notes at the bottom. I recommend you set Capacitor Aging to 30%, and if you participate in distributive computing projects (e.g. BOINC or Folding@Home), I recommend setting TDP to 100%.