Enough PSU wattage?

[captininsano6]

Hi this is my current build
cpu: AMD FX-8120 3.1 8core
mobo: Asrock 970 extreme 4
gpu: Asus radeon HD 7770 2gb
psu: Evga 500w 80plus bronze certified atx 12v


my question is will the power supply be enough wattage to support 2 7770 is crossfire? Thanks

 

[maurelie]

You will need 600w at least. 650w will be more preferable

 

[captininsano6]

You will need 600w at least. 650w will be more preferable

Alright Thank you

 

[ingtar33]

Hi this is my current build
cpu: AMD FX-8120 3.1 8core
mobo: Asrock 970 extreme 4
gpu: Asus radeon HD 7770 2gb
psu: Evga 500w 80plus bronze certified atx 12v


my question is will the power supply be enough wattage to support 2 7770 is crossfire? Thanks

that's a 220W cpu
and a 90W gpu

yes, it should be enough for 2 7770s in xfire.

 

[ko888]

For a system using a single Radeon HD 7770 GHz Edition graphics card AMD specifies a minimum of a 500 Watt or greater system power supply. The power supply should also have a maximum combined +12 Volt continuous current rating of 23 Amps or greater and have at least one 6-pin PCI Express supplementary power connector.

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) rated at 45°C - 50°C ambient temperature, is the most critical factor.

Overclocking of the CPU and/or GPU(s) may require an additional increase to the maximum combined +12 Volt continuous current ratings, recommended above, to meet the increase in power required for the overclock. The additional amount required will depend on the magnitude of the overclock being attempted.

The EVGA 500W BRONZE (100-B1-0500-KR) power supply unit, with its maximum combined +12 Volt continuous current rating of 40 Amps and with two (6+2)-pin PCI Express supplementary power connectors, is way more than sufficient to power your system configuration with a single Radeon HD 7770 GHz Edition graphics card.

 

[bignastyid]

Yes it should be. When gpu manufactures recommenced a psu wattage they figure in that it may be a lower quality unit, for example they recommend a 600w psu with atleast 30a(360w) on the 12v rail, the amps are the more important requirement here. A 600w psu that only has 30a( combined on the 12v rail(s) is most likely going to be a low quality PSU that you don't want to begin with. The 500w EVGA is not a low quality PSU and provides 40a(480w) on its 12v rail which should be sufficient for 2 7770's, unless you are doing some massive overclocking on the cpu and gpu's.

 

[captininsano6]

Yes it should be. When gpu manufactures recommenced a psu wattage they figure in that it may be a lower quality unit, for example they recommend a 600w psu with atleast 30a(360w) on the 12v rail, the amps are the more important requirement here. A 600w psu that only has 30a( combined on the 12v rail(s) is most likely going to be a low quality PSU that you don't want to begin with. The 500w EVGA is not a low quality PSU and provides 40a(480w) on its 12v rail which should be sufficient for 2 7770's, unless you are doing some massive overclocking on the cpu and gpu's.

Thanks for the info, i will be overclocking the CPU a little bit but nothing insane maybe push it closer to 3.8/4ghz looks like ill invest in another 7770, since the prices aren't to bad for them right now.