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The RP series is junk for sure and i'm with beenthere i'd choose another brand.
Rp's are noisy and can't operate above 25C internally which is ridiculous in a modern system.
The RG630 is a good unit and doesn't suffer from issues found in the P series.
http://www.hardwaresecrets.com/article/Rosewill-Green-Series-630-W-RG630-S12-Power-Supply-Review/881/10
Can't go wrong with a Seasonic = quality and reliability
Good quality unit at a great price.
Antec Earthwatts Green 650W - $49.99 USD
http://us.ncix.com/products/?sku=59339&vpn=EA650Green&manufacture=Antec&promoid=1339



The RP series is junk for sure and i'm with beenthere i'd choose another brand.
Rp's are noisy and can't operate above 25C internally which is ridiculous in a modern system.
The RG630 is a good unit and doesn't suffer from issues found in the P series.
http://www.hardwaresecrets.com/article/Rosewill-Green-Series-630-W-RG630-S12-Power-Supply-Review/881/10
Can't go wrong with a Seasonic = quality and reliability
Good quality unit at a great price.
Antec Earthwatts Green 650W - $49.99 USD
http://us.ncix.com/products/?sku=59339&vpn=EA650Green&manufacture=Antec&promoid=1339



 
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