[Power Supply] [GPU] Do I have enough power?

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MayhemLikeMe

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I currently have an HP Pavilion Elite - Model Number HPE-4101

I have been reading reviews about the Nvidia GeForce GTX 750 Ti 2GB GDDR5 and just purchased one.

GTX 750 Ti

It recommends a 400 watt power supply, and I'm wondering if this Antec EarthWatts EA-380D Greenwill be enough power.

Antec EarthWatts EA-380D Green

Thank you guys in advance. Let me know if you need any more information.
 
Solution
ko888
For a system using a single GeForce GTX 750 Ti graphics card NVIDIA specifies a minimum of a 400 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 20 Amps or greater.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Sufficient Total Combined Continuous Power/Current Available on the +12V Rail(s) is the most critical factor.

Yes, the Antec EA-380D Green is more than enough since it has a maximum combined +12 Volt continuous current rating of 28 Amps.
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ko888

ko888

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For a system using a single GeForce GTX 750 Ti graphics card NVIDIA specifies a minimum of a 400 Watt or greater system power supply that has a maximum combined +12 Volt continuous current rating of 20 Amps or greater.

Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Sufficient Total Combined Continuous Power/Current Available on the +12V Rail(s) is the most critical factor.

Yes, the Antec EA-380D Green is more than enough since it has a maximum combined +12 Volt continuous current rating of 28 Amps.
 
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MayhemLikeMe

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Thank you so much!
 
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MayhemLikeMe

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I have another question. How do you know the +12 Volt continuous current rating is 28 Amps? I don't see that information listed.
 
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MayhemLikeMe

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Maths FTW. Thank you again! You're the best!
 
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MayhemLikeMe

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Last question I swear. My card is going to arrive before the power supply. Is it safe to test the card out on my stock power supply?
 
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ko888

ko888

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I wasn't able to find an "HPE-4101" model number so I don't know what the exact system specifications are.

If the maximum +12V current rating of the stock PSU is close to 20 Amps (my guess is it's somewhere around 19 Amps if it's a 300W PSU) it may very well work depending on what the rest of the system configuration is.
 
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MayhemLikeMe

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That's because the HPE-4101 doesn't exist. I misread the model number. It's an HPE-410f. Here is the link to the specs. It's a 300 Watt psu.

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c02481315&cc=us&dlc=en&lc=en

 
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ko888

ko888

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That CPU doesn't have a huge power draw so I think you'll be fine.
 
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MayhemLikeMe

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Should I return the new PSU that I got then? Is it overly redundant?
 
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ko888

ko888

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Don't return it until you've proven that the current PSU runs fine.

Run FurMark stability testing and see if the current PSU is able to power the system without problems.
 
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