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Is my psu enough to run nvidia gtx 550 ti?

Last response: in Graphics & Displays
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June 22, 2012 8:16:48 PM

The gtx 550 ti is on sale right now on tigerdirect:

(http://www.tigerdirect.com/applications/SearchTools/ite...)

And I was wondering if my psu (its a SilenX from 2009, and heres a link from tigerdirect, http://www.tigerdirect.com/applications/SearchTools/ite...) can handle it.

System Specs:
Pentium g620 2.6 ghz
Kingston HyperX 3k 90 gb ssd
WD 200 gb Hdd
Biostar H61mlc mobo
Nvidia 9800 gt green edition
G. Skill 8 gb ram
LG MODISC Dvd Drive
Antec 200 case (120 mm fan, 140 mm fan both on exhaust on the back of case)
SilenX iXtrema 650w Psu

More about : psu run nvidia gtx 550

a b Î Nvidia
June 22, 2012 8:20:24 PM

Yes, your power supply can run the card.
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June 23, 2012 6:27:10 AM

fantastik250 said:
Yes, your power supply can run the card.


Well I don't just fall in for an answer like that, even though its coming from a veteran...and I dont know much about reading psu's besides their wattage and if their 80+ certified and ofc the good "legit" brands such as antec, corsair and pc power & cooling. Can you explain to me the rails and all that other stuff and how does my silenX qualify for the requirement of the gpu.

And if I were to buy it how much of an upgrade I would see coming from a nvidia 9800 gt "green edition".

PS: srry for being a noob on this issue since im just nervous about my psu having a breakdown due to its unknown brand and having painfull thick cables...
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a b Î Nvidia
June 23, 2012 6:42:47 AM

Your PSU +12V rail is capable of outputting 240 Watts. Even though you have a +12V1 and +12V2, the V2 is there for any overages you may encounter.

Taking a brand like palit GTX 550 Ti, it consumes by itself 163W



Your Pentium g620 consumes ~76 W



The total watts is 239.

So I think you're okay because you have a second rail for any overages.

But next time you may want to choose a PSU that can supply more amps and/or wattages to the 12V rail rather than 3.3V and 5V rails.

Let me know what you think.
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a b Î Nvidia
June 23, 2012 6:45:06 AM

at the same pricepoint, the hd 7750 almost performs the same as a 550ti, at a lower power consumption, newer architecture, and lower cost. its kind of one of the reasons why the 550ti is almost never recommended. because people with adequate psus go for the gtx 460/hd7770/hd 6850+ and those who dont usually get the 7750 because its basically a 550ti that runs on almost any power supply.
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June 25, 2012 12:19:40 AM

fantastik250 said:
Your PSU +12V rail is capable of outputting 240 Watts. Even though you have a +12V1 and +12V2, the V2 is there for any overages you may encounter.

Taking a brand like palit GTX 550 Ti, it consumes by itself 163W

http://tpucdn.com/reviews/Palit/GeForce_GTX_550_Ti_Sonic/images/power_maximum.gif

Your Pentium g620 consumes ~76 W

http://images.anandtech.com/graphs/graph4524/40753.png

The total watts is 239.

So I think you're okay because you have a second rail for any overages.

But next time you may want to choose a PSU that can supply more amps and/or wattages to the 12V rail rather than 3.3V and 5V rails.

Let me know what you think.



Thank you, thank you so much from the simple explanations and along with the wattage graphs. I'm still not good with the rails and stuff but thank you for the simple explanation...lol btw the pic on tigerdirect of the psu had rubber screws had to take em off coz they werent holding the fan tight enough and it would strike the fan grille...so i had to improvise and put a screw with a nut on it , now its quiet again had 2 do this when i was assembling the pc last year.

ty ty again :D 
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a b Î Nvidia
June 25, 2012 12:21:40 AM

No problem let us know how it worked out :) 
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June 25, 2012 5:47:28 PM

:??: 

It ain't gonna happen... apparently just a day after I posted this...the 550 ti that was on sale just got sold out....srsly a 550 ti for 99 bucks (74 w/ rebate). Oh well at least now i know that my psu can handle the 550 ti...which means i have another gpu to watch out for besides the 7750...btw if it can handle those gpu's can it handle the "most recommended gpu" for this price range, the radeon 6850?
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a b Î Nvidia
June 25, 2012 9:16:47 PM

Yes, it consumes less power than the 550 ti
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