PSU for GTX 660 SC Signature 2 (24A on +12Volt rail)

[revro]

I have PSU fortron saga II 500W
http://www.mygarage.ro/attachments/teste-si-review-uri/109670d1283271339-mini-review-fortron-saga-ii-500-s7300427.jpg
and want to ask whether it can be enough for

EVGA GeForce GTX 660 3GB SC Signature 2
http://eu.evga.com/products/moreinfo.asp?pn=03G-P4-2665-KR&pwindow=specs&family=&sw=

I know that 500W should be enough, but requirements also state:
Minimum of a 450 Watt power supply.
(Minimum recommended power supply with +12 Volt current rating of 24 Amps.)

picture shows
+12V1 +12V2
18A 18A

so can this PSU support this card, or do I need one where there is 24A under +12Volt rail?

thank you
revro

 

[revro]

wait, if TDP of card is 140W and its on 12Volt rail, does it mean that 24A is needed for entire system and the 18 is enough as its more that 140W/12V?

thank you
revro

 

[djangoringo]

Well 18A only gets 216w, 2 rails 18a gets 408w for the card alone, the 660 gtx max drawn is 140-150w.
So it will do, although the brand is a shoddy one.

 

[revro]

FSP is fortron and its 80 PLUS Bronze Certified - it´s efficiency >82% (http://www.partis.cz/index.php?gid=1535)
also my current setup with c2d e7500 @stock draws from wall cca 140W under full load in games
(cpu itself has 77Watt TDP, 5750 has TDP of 86W and 660 SC S2 has TDP 140W)

best
revro

 

[willyroc]

Well 18A only gets 216w, 2 rails 18a gets 408w for the card alone, the 660 gtx max drawn is 140-150w.
So it will do, although the brand is a shoddy one.

FSP is not a shoddy brand. Its AURUM and RAIDER series are better than most Corsair PSUs.

 

[revro]

with q9550 and gtx 660 ftw signature 2 i am having top power usage 226Watt, so i am really ok with it

best
revro

 

[lilotimz]

The FSP unit can output 408w on the 12v rail which translates to 34 amps. 34 amps is more than capable enough for a single GTX 660 and a Q9550 along with some overclocking. It's a decent psu and you'll be fine with it.