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Question about GTX 550Ti

Last response: in Graphics & Displays
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June 3, 2011 8:23:43 AM

hey guyz, i'm planning to buy a ECS GTX550 Ti,

Here's my rig spec-
Gigabyte EP43T-USB3
Intel Q9550 running @3.2GHZ with stock vid
ThermaTake Frio Cooler
2x2 Elite Group 1333bus DDR3 ram
Sapphire HD 4770
2 sata HDD +1 IDE Dvd Rom
Sound Blaster Audigy2 ZS
Thermaltake Litepower 400w psu

Now here's My question-

1. Would I able to run GTX 550Ti with TT LP 400w psu
2. I wanna know about the reliability of ecs(vendor), because in my country(Bangladesh) currently only available ecs(http://www.ecsusa.com/ECSWebSite/Product/Product_Detail...) and Gigabyte(http://www.gigabyte.com/products/product-page.aspx?pid=...) and the problem is gigabyte is 34$ higher then ecs.
and i asked about the reliablity of ecs because i havent found any review of ECS NGTX550TI-1GPLI-F in web..:( 

btw my 400w psu has +12v1=16A and +12v2=18A
and i managed to run my 4770 over 1.5 years without a single hiccups..:) 
Sorry for my poor english

Please enlighten me..

Thank u
Walid.

More about : question gtx 550ti

a c 547 U Graphics card
June 3, 2011 10:15:44 PM

Does that power supply have a minimum +12V current rating of 24A (288W) or greater and at least one 6-pin PCI Express Supplementary Power Connector?

The Radeon HD 4770 has a maximum board power of 80 Watts.

The GeForce GTX 550 Ti has a maximum graphics card power of 116 Watts. That's a 45% higher possible maximum power consumption than your old graphics card.

Isn't there something printed on the power supply's label that says "Total combined +12V output load should not exceed ??A"? What is the ?? value? Is it 24 or greater? If yes then the +12 Volt rails have enough output current capacity. If no then you will need a new power supply unit.
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a c 145 U Graphics card
June 4, 2011 12:55:07 PM

ko888 said:
Does that power supply have a minimum +12V current rating of 24A (288W) or greater and at least one 6-pin PCI Express Supplementary Power Connector?


i think GTX550Ti should still run just fine even if the PSU have less than 24A on the +12v rail. even for my GTX460 DC TOP Asus only recommend to have at least 24A on the 12v rail. nvidia recommend 400w PSU for GTX550Ti:

http://www.geforce.com/#/Hardware/GPUs/geforce-gtx-550t...

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a c 547 U Graphics card
June 4, 2011 5:43:25 PM

renz496 said:
i think GTX550Ti should still run just fine even if the PSU have less than 24A on the +12v rail. even for my GTX460 DC TOP Asus only recommend to have at least 24A on the 12v rail. nvidia recommend 400w PSU for GTX550Ti:

http://www.geforce.com/#/Hardware/GPUs/geforce-gtx-550t...

I agree with you on that. Several of the vendors like EVGA, Sparkle, PNY and Palit specify a minimum +12V current rating of 24A for their GeForce GTX 550 Ti cards. Seems to be a better-safe-than-sorry approach.

The GeForce GTX 460 has a maximum graphics card power that is 44 Watts higher than the GeForce GTX 550 Ti's so a safe minimum would be 20 Amps (continuous not peak) or greater on the combined +12 Volt rails from a quality power supply unit.
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