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Sapphire Radeon HD 7770 350W PSU

Last response: in Graphics & Displays
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August 7, 2013 5:58:07 AM

Hello guys,

I need help,
I want to buy the gpu Sapphire Radeon HD 7770 but I have a 350W PSU, so i dont know if that is enough to run the gpu. I dont want to overclock the GPU.
I will let him stay on the standardclock. I will play games like BF3, GTA IV, Crysis 3
and BF4, GTA V when they come out.
My psu is from fortron FSP350-60HHN
here the picture of fsp350-60hhn
http://bepixelung.org/21072
My PC specs:
Intel Core i5 3450 3.10GHz Turbo Boost 2.0 : 3.5 GHz TDP:77W
Sapphire HD 6570 overclocked
Gigabyte H61MA-D2V
1x4GB Kingston DDR3-1333
1 HDD Sata III 500GB
PSU:FSP350-60HHN

P.S: My psu have two of this.
http://img.donanimhaber.com/upfiles/726052/87BB65619320...
August 7, 2013 6:01:45 AM

you need to upgrade your power supply, you can buy a corsair builder series cx430 and it will run perfectly fine
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August 7, 2013 6:04:45 AM

AMDRadeonHD said:
you need to upgrade your power supply, you can buy a corsair builder series cx430 and it will run perfectly fine

I would like to upgrade the PSU, but i have not enough Budget then.

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August 7, 2013 6:04:45 AM

Unfortunately no, it requires a 500w PSU and a 6 pin molex connector (they come with PSU's usually).

Now you could probably if forced get away with 400 - 500w but 350w is way below AMD's recommended system requirements.

Get the PSU their not to expensive, this is a solid Corsair Modular option and is $39 ........

http://pcpartpicker.com/part/corsair-power-supply-cx500...
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August 7, 2013 6:10:54 AM

Just FYI : Core i7 3970X + GTX 660 Ti Whole System requires 297W to operate at its peak.

It would run just fine if you look at things practically. If you would look at the wattage theoretically (As written on the box) then you need 450W + PSU.

I would say it would work with no problem at all. Still if for some reason it doesn't work, just change it. First buy GPU only, and test it. I know you would not need to change PSU.
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August 7, 2013 6:18:10 AM

Check how many amps are on the +12v rails. There will be a sticker on the side of the PSU. The HD 7770 is very low-power.
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Best solution

August 7, 2013 6:38:26 AM

Bordo_Bereli51 said:
@jessterman 15.0A are on the +12V rails.
Can i trust the Thermaltake Power Calculator?
It says. Recommended PSU Wattage: 271W
Here a Picture http://i44.tinypic.com/2h68wlf.jpg


You should be fine, then. If you have the budget, get a $50 PSU from a reputable brand, but if not it will most likely work with your existing PSU. You're adding less than 40w at max load.
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August 7, 2013 6:42:35 AM

jessterman21 said:
Bordo_Bereli51 said:
@jessterman 15.0A are on the +12V rails.
Can i trust the Thermaltake Power Calculator?
It says. Recommended PSU Wattage: 271W
Here a Picture http://i44.tinypic.com/2h68wlf.jpg


You should be fine, then. If you have the budget, get a $50 PSU from a reputable brand, but if not it will most likely work with your existing PSU. You're adding less than 40w at max load.


Thanks for your help and for others who took his time to help me!
Thread can be closed now.

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August 13, 2013 4:54:27 AM

I had no problems running first an HD 6850 1GB and then an HD 7850 1GB in a Dell Vostro which had a 350W PSU, and both of these cards have a higher max power draw than a 7770 according to GPU review (c130W vs 80W for the 7770).
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