Hi All -
 
I recently purchased the GTX 660 TI SC from newegg. On the details page they had listed the minimum power supply required to be 450W. Having a 500W  power supply I figured I was ok. I am receiving the card tomorrow and I am worried I do not have the appropriate PSU. When browsing the EVGA details page they have a minimum recommended power supply with a +12 volt current rating of 24 Amps. However, my PSU only supplies 22A at +12.
 
My questions:
 
1. Will I be able to run the card on my current unit (until I can buy another PSU)?
2. If I can run this, will it damage my card?
 
Thanks in advance.
 
If you want to look at the card & psu I have you can find them at newegg under
1. (GPU) 

VGA SuperClocked 02G-P4-3662-KR GeForce GTX 660 Ti 2GB 192-bit GDDR5 PCI Express 3.0 x16 HDCP Ready SLI Support Video Card

 
2. (PSU)

Antec EarthWatts EA-500D Green 500W ATX12V v2.3 / EPS12V 80 PLUS BRONZE Certified Active PFC Power Supply

I would post the links, but I don't have the required user rating.
 
Thank you!
 

Welcome to the EVGA forums
 
You will be completely fine
 
That PSU has -TWO- 12v rails each at 22a for a total-->44a 12v
http://www.newegg.com/Pro...x?Item=N82E16817371035

Frederick0

@maniacvvv & Baltothewolf = Thank you

@Baltotheworlf
ASUS P8Z77-V LK
Intel Core i5-3570K @3.4ghz
60GB SATA - AGT3-25SAT3 SSD
250GB SATA hard drive
x2 4GB RAM 240-pin DDR3 SDRAM DDR3 1600 (PC3 12800)
Sorry, forgot the fans.
x3 fans.
x2 120mm triColl rear fans
x1 140mm TriCool top fan

 
Yea due to Maniacc's post, I agree, your system will be fine. And nice system! Once you get everything set up you should get a mods rigs up.

cneuhauser

I disagree with the above posts... hopefully an electrical engineer will back my post.

Efficiency is 82% during perfect conditions, if your PSU is a couple years old bump that down to 70% efficiency... 500 x .70 = 350w, keep in mind Amps = Watts / Volts (Therefore amps are effected by PSU efficiency as well) Don't forget about "i" or "resistance" in your cabling as well.
http://support.asus.com/powersupply.aspx

 
Quote
"When browsing the EVGA details page they have a minimum recommended power supply with a +12 volt current rating of 24 Amps"
 
Please explain how a PSU with +12v current total of 44 Amps does not completely exceed that spec

cneuhauser

350watts / 12v = 29Amps ( he's got 4 amps to play with) ENJOY!

 
You appear to know nothing about powersupplies, how they work or what the terms around them mean.
http://www.newegg.com/Pro...x?Item=N82E16817371035 

 
As posted (with link) he has a 500 watt PSU, with 44amps +12v at a rating of 444 watts
Your comments are completely mistaken and incorrect. 
 

After having spent several hours reading about power supplies I have come to the conclusion that there is alot of FUD out there.  Most quality power supplies that have been built in the past year will power these video cards just fine.  You have to keep in mind that when EVGA says minimum 24amps on the 12v rail, that is not what the card needs by itself.  That is what they feel comfortable with as a minimum with all the other things that run in a pc (which on a modern PC 80% of the systems power is on the 12v rail).   There are some very detailed explanations on various forums, and an excellent calculator at http://www.extreme.outerv.../psucalculatorlite.jsp