Will my 550 watt power supply support a Niunvidia GTX 560 Ti

[Stonemotmot]

Hello, I'm looking to upgrade my graphics card and the nvidia GTX 560 Ti is in my price range. My only main concern is whether or not my 550 watt power supply can support it and if this is a reliable card.
Here are my system specs.

MS Windows 7 Home Premium 64-bit SP1
CPU
Intel Core i5 660 @ 3.33GHz
Clarkdale 32nm Technology
RAM
4.0GB Single-Channel DDR3 @ 666MHz (9-9-9-24)
Motherboard
Intel Corporation DP55KG (LGA 1156)
Graphics
Acer V203H @ 1600x900
ATI Radeon HD 5670 (this is the card im looking to replace)
Hard Drives
977GB Western Digital WDC WD10EARS-00Y5B1 ATA Device (SATA)
Optical Drives
ASUS DRW-24B1ST ATA Device
Audio
Realtek High Definition Audio

 

[Stonemotmot]

by the way i know i misspelled nvidia in the thread name. My bad.

 

[0ozee]

should be fine

 

[mjsharma]

what is the make and model of your psu?

 

[MisterFister]

I'm pretty sure you would be fine with a 550 watt PSU. If you could find the amps on your 12v rail it would be even more helpful. According to this link the recommended PSU for a superclocked GTX 560 is 500 watts with a 30 amp 12v rail.

http://www.evga.com/products/moreInfo.asp?pn=01G-P3-1563-AR&family=GeForce%20500%20Series%20Family&sw

You could also check out the free light version of the PSU calculator here:

http://extreme.outervision.com/psucalculatorlite.jsp

glhf

 

[mjsharma]

what matter is the amps on +12v rail not just total wattage...
The psu specs is needed to know is your psu can hold that card or not

 

[MisterFister]

Sharma, I agree with you. There is no way to be certain without that information. However, if I were a betting man, I would bet that he would be alright. What kind of a 550 Watt PSU doesn't have a 30 amp 12v rail?

I could be completely wrong, but I am under the impression that it would be hard to find a PSU like that.

 

[delluser1]

Sharma, I agree with you. There is no way to be certain without that information. However, if I were a betting man, I would bet that he would be alright. What kind of a 550 Watt PSU doesn't have a 30 amp 12v rail?

I could be completely wrong, but I am under the impression that it would be hard to find a PSU like that.

Not at all
http://www.newegg.com/Product/Product.aspx?Item=N82E16817170019

 

[mjsharma]

http://www.atxpowersupplies.com/powmax-xpower-atx-power-supply-550-watt.htm
this one has only 20 amp on +12v rail

 

[MisterFister]

I stand corrected. Thank you for informing me of my mistake.

 

[Stonemotmot]

Thanks for the replys the psu is a Ultra 550 Watt ATX Power Supply

 

[mjsharma]

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=2974488&CatId=1079

http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=3276574&CatId=1079

is any of this your psu?
if yes then it has only 26 amps on +12v rail and wont run gtx 560 ti
go for a corsair 600w psu, you will get some breathing space too

 

[iam2thecrowe]

Ultra make crappy PSU's.

 

[Stonemotmot]

@mjsharma the second one is my psu but when i looked at the specs it did have a 12V 30amp rail.

 

[mjsharma]

that is not true, you only try adding up all the wattages it will be more than 550w
the reason is, that is the peak amps on that rail the actual amp rating will be approximatly equal to (total wattage-(amp on +3.3)-(amp on +5))/12
in your case it is (550- (3.3*22)-(5*32))/12=26.45 approximatly