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Want to buy 550 ti but power supply has just one 6-pin power connector

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December 9, 2012 4:34:04 AM

Hello,
I have a circle power supply of 400 W, which came preinstalled in a circle cabinet, and it has a power supply wattage of 400W
However, there is only one 6-pin connector which supplies power to the motherboard.
I know GTX 550 Ti needs an additional 75 W power connector. Can anything be done ? I dont want to spend additional money buying a new power supply...
Is it essential for me to have a power supply with two 6-pin power connectors ?
and WT* are power rails ??
a b ) Power supply
December 9, 2012 4:55:50 AM

http://www.google.co.za/imgres?q=PCI-e+power+to+molex&u...

You can purchase one of those to convert molex to a PCI-e 6pin connector. (this is not really suggested if your PSU does not have sufficient amps on the 12v rail).

A rail is like a lane that power can move through.

Open up your case and post a photo of the specs on the side of the PSU. I will tell you if it has enough power to run a GTX550ti, but I doubt it will. 400W built in PSUs are usuall junk and do not deliver the rated wattage most of the time...
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a c 1203 ) Power supply
December 9, 2012 3:26:35 PM

For a system using a single GeForce GTX 550 Ti graphics card NVIDIA specifies a minimum of a 400 Watt or greater power supply that has a combined +12 Volt continuous current rating of 24 Amps or greater and that has at least one 6-pin PCI Express supplementary power connector.

Your Circle 400W SMPS will most likely have a combined +12 Volt continuous current rating of 16 or 17 Amps which is grossly insufficient to power a system with a single GeForce GTX 550 Ti.
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a b ) Power supply
December 9, 2012 4:04:20 PM

ko888 said:
For a system using a single GeForce GTX 550 Ti graphics card NVIDIA specifies a minimum of a 400 Watt or greater power supply that has a combined +12 Volt continuous current rating of 24 Amps or greater and that has at least one 6-pin PCI Express supplementary power connector.

Your Circle 400W SMPS will most likely have a combined +12 Volt continuous current rating of 16 or 17 Amps which is grossly insufficient to power a system with a single GeForce GTX 550 Ti.


LOL really? Give me a chance to confirm first... LOL

He may have been lucky with his PSU, but as I said, I doubt it...
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a c 1203 ) Power supply
December 9, 2012 4:16:26 PM

Novuake said:
LOL really? Give me a chance to confirm first... LOL

He may have been lucky with his PSU, but as I said, I doubt it...

Circle is one of those low end brands available only in India. They are usually based on old obsolete power supply designs that are biased towards the +3.3V and +5V rails and lack APFC and automatic input voltage detection.
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a b ) Power supply
December 9, 2012 4:18:12 PM

ko888 said:
Circle is one of those low end brands available only in India. They are usually based on old obsolete power supply designs that are biased towards the +3.3V and +5V rails and lack APFC and automatic input voltage detection.


Cool I don't know the brand...
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December 16, 2012 3:42:33 AM

Thank you all for your answers,here is an image of my PSU ( sorry for poor image quality :(  )


Anyway, Can you please suggest a few good brands of 500W PSU, that wont be too costly for me to buy.
Thanks a lottt..

(Budget around 4000 Rupees (INR) or < 100$ )
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a b ) Power supply
December 16, 2012 8:04:23 AM

friendz101 said:
Thank you all for your answers,here is an image of my PSU ( sorry for poor image quality :(  )
http://i461.photobucket.com/albums/qq331/friendz10101/IMG_20121209_112233_zps97b4d3b8.jpg

Anyway, Can you please suggest a few good brands of 500W PSU, that wont be too costly for me to buy.
Thanks a lottt..

(Budget around 4000 Rupees (INR) or < 100$ )


Ok that PSU is VERY underpowered.

Try and find a Antec NEO ECO 520W. Those are very cheap but very good.
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a c 1203 ) Power supply
December 16, 2012 3:42:08 PM

The Corsair Builder Series VS450 (CP-9020009), with its combined +12 Volt continuous current rating of 30 Amps and with one 6-pin PCI Express supplementary power connector, is sufficient to power your system configuration with a single GeForce GTX 550 Ti.

Rs. 2428 (Price inclusive of taxes)
http://www.flipkart.com/corsair-vs450-450-watts-psu/p/i...


The Antec Basiq Series 450 Watts (VP450P), with its combined +12 Volt continuous current rating of 30 Amps and with one 6-pin PCI Express supplementary power connector, is sufficient to power your system configuration with a single GeForce GTX 550 Ti.

Rs. 3005 (Prices inclusive of taxes)
http://www.flipkart.com/antec-vp450-450-watts-psu/p/itm...


The Corsair Builder Series VS550 (CP-9020050-WW), with its combined +12 Volt continuous current rating of 42 Amps and with two (6+2)-pin PCI Express supplementary power connectors, is more than sufficient to power your system configuration with a single GeForce GTX 550 Ti.

Rs. 3278 (Prices inclusive of taxes)
http://www.flipkart.com/corsair-vs550-80-plus-certified...
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a b ) Power supply
December 16, 2012 3:49:41 PM

^ I'd second that Antec VP-450, was a proud owner of it and it was a great unit. In addition, the NEO 520 is also a great power supply but might be a bit pricy, but I believe it is made by Seasonic with a few changes. Seasonic is a very reliable brand....
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December 16, 2012 3:57:25 PM


Thank you so much for suggesting links of flipkart, since i m usually a flipkart buyer :bounce: 

Anyway, would you recommend this one :

http://www.flipkart.com/corsair-cmpsu-430cxv2uk-430-wat...

Thanks ..











ko888 said:
The Corsair Builder Series VS450 (CP-9020009), with its combined +12 Volt continuous current rating of 30 Amps and with one 6-pin PCI Express supplementary power connector, is sufficient to power your system configuration with a single GeForce GTX 550 Ti.

Rs. 2428 (Price inclusive of taxes)
http://www.flipkart.com/corsair-vs450-450-watts-psu/p/i...


The Antec Basiq Series 450 Watts (VP450P), with its combined +12 Volt continuous current rating of 30 Amps and with one 6-pin PCI Express supplementary power connector, is sufficient to power your system configuration with a single GeForce GTX 550 Ti.

Rs. 3005 (Prices inclusive of taxes)
http://www.flipkart.com/antec-vp450-450-watts-psu/p/itm...


The Corsair Builder Series VS550 (CP-9020050-WW), with its combined +12 Volt continuous current rating of 42 Amps and with two (6+2)-pin PCI Express supplementary power connectors, is more than sufficient to power your system configuration with a single GeForce GTX 550 Ti.

Rs. 3278 (Prices inclusive of taxes)
http://www.flipkart.com/corsair-vs550-80-plus-certified...

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Best solution

a c 1203 ) Power supply
December 16, 2012 4:18:39 PM

friendz101 said:
Thank you so much for suggesting links of flipkart, since i m usually a flipkart buyer :bounce: 

Anyway, would you recommend this one :

http://www.flipkart.com/corsair-cmpsu-430cxv2uk-430-wat...

Thanks ..

That model is now discontinued by Corsair. It also has a weaker +12 Volt rail than the new cheaper Corsair Builder Series VS450 (CP-9020009) that I recommended.
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December 16, 2012 4:44:11 PM

ko888 said:
That model is now discontinued by Corsair. It also has a weaker +12 Volt rail than the new cheaper Corsair Builder Series VS450 (CP-9020009) that I recommended.


Thanks... would definitely buy it then... U r awesome..
Thanks everyone for their inputs on this .... :) 
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December 16, 2012 4:44:31 PM

Best answer selected by friendz101.
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