LuxiusVG :
Title says it all, What PSU do I need for a Nvidia geforce GTX 560? I already figured I need atleast 450W for a minimum, So I'm getting a 500-550W PSU just to be safe. But I wonder if theres anything I'm missing here that's important before buying a new PSU. Do I need an ATX or an ATXV12? Do I need 80+ bronze certification or none? Do I need dual or quad v12 rails? Etcetera.
Oh and I'm not planning on overclocking.
ok, you seem to know that you need a 450+ watt and that's reasonable as long as you don't have a power hungry OC'd sandy bridge-E or FX83xx rig with water cooling 100 case fans and whatnot. oh and likely no disco ball.
a lower watt PSU like that will usually be single 12 volt. there are some that have multi rails but for a few reasons i wouldn't touch them with a barge pole. so get a single 12 volt rail. the biggest question about a 12volt rail is; does the amperage supply
atleast 80% of the PSU's rated output? (ie 550 watt PSU ought to have atleast [550*.8= 440/12] 36+ amps)
the ATX and ATXv2 is for the 12 volts for the cpu connection. don't worry about that - standard is v2 for the extra power most all cpus need anymore.
when it comes to bronze, silver. gold or platinum - the higher the efficiency the better, more so with higher wattage units.
but that does not necessarily mean its a quality unit. i have read reviews of "gold rated units" that were tested for certification at lower temperatures that made the unit look great (~30c) but once they were put in a "hot box" (~50c) not only did it fail in efficiency but the unit shut down before being able to supply its "rated" load. ie 750 watts.
there are a few reputable brands like antec, seasonic, and XFX. there are some brands that have good series (or models) like the rosewell fortress or capstones, coolermaster V or silient pro series.
the question is what is your budget?
this is an outstanding PSU:
Rosewill FORTRESS-550 550W 80 PLUS PLATINUM $69.99
Save: $70.00 (50%)
$49.99 after $20.00 rebate card
the price of that is just too hard to pass up
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