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Can I run a GTX 560 ti on a 500w PSU?

#1 astrosiphic

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Posted 02 November 2011 - 01:18 PM

I have ordered a GTX 560 ti.

The minimum requirement is 500watt PSU but will this be enough? I googled it and it seems there's different answers. I tried a watts calculator and it seems wrong as i've put my old specifications in, it gives me a different answer compared to the last time I tried it, I got 320watts last time where as now I get 500watts for my old specs.

Current Spec:

i5-2500K CPU @ 3.30Ghz
8GB RAM (2 sticks)
Msi P67A-GD53(B3) motherboard
Creative xtreme gamer sound card
2 Hard Drives
3 case fans
LCD fan & temp display
OCZ StealthXStream 500W
Gigabyte GTS 250

This post has been edited by astrosiphic: 02 November 2011 - 01:20 PM

#2 DJBPace07

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Posted 02 November 2011 - 03:31 PM

If Nvidia or the card maker says it needs 500W, it probably needs 500W. If your current power supply is only 500W, I would be a little concerned as power supplies lose efficiency over time and the suggested wattage of the GPU is conservative on a quality PSU.

#3 astrosiphic

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Posted 02 November 2011 - 03:38 PM

Ok thanks, I guess I'll buy a new PSU.

#4 dpunisher

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Posted 02 November 2011 - 04:12 PM

Actually, that OCZ PSU isn't really a bad unit. Not overly efficient, but a decent quality unit that will push 500 watts without dying.

If it were my system, I would give it a try with that GTX560 and see how it goes. Whether the PSU has enough PCIE power connectors remains to be seen.

I am a retired Ford tech. Next to Fords, any computer is a piece of cake. (The cake, its not a lie)

#5 killerx525

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Posted 03 November 2011 - 12:08 AM

According to the OCZ site, it has 1 x 6pin PCI-E and if you bought the power supply in June 2008 or later then there should 1 or 2 PCI-E.

>Michael
System: CPU- AMD Phenom II X6 1090T Black Edition Oc'ed to 3.8GHz, CPU Cooler- Noctua NH-D14, RAM- G.Skill Ripjaws X F3-12800CL9D-8GBXL 8G Kit(4Gx2) DDR3 1600, HDD- Western Digital Caviar Black 1TB 7200 RPM 64MB Cache SATAIII, GPU- Asus EAH6950 1GB Crossfire Oc'ed 900/1310mhz, MB- Gigabyte 990FXA-D3, Case- Coolermaster HAF 932, PSU- Corsair TX-750 V2, Soundcard- Realtek High Definition Audio Sound, OS- Windows 7 Ultimate SP1 64-Bit