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Help Choosing Power Supply?

Tags:
  • Power Supplies
  • Graphics Cards
  • Sapphire
  • Graphics
Last response: in Graphics & Displays
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August 14, 2013 2:04:59 PM

I am buying a new graphics card and the one have been looking at was a Sapphire Radeon HD 7750. I am looking for a new power supply so I can use the card. Recommendations? I have been looking at them all day but I keep seeing that they break in a few months.

More about : choosing power supply

a b ) Power supply
a b U Graphics card
August 14, 2013 2:12:40 PM

The 7750 only requires a 350W PSU, so I would look for something in the 400-550W range from a quality manufacturer such as Antec, Seasonic, XFX, Corsair, etc.
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August 14, 2013 2:15:25 PM

I would go with a 500 watt psu depending on other hardware being used in your rig...i do not know your configuration but go with a seasonic, corsair or coolermaster. typically any brand will do. usually you will want a plus bronze certified or higher standard. I usually go for gold certified. I would also recommend a modular psu for the convenience of cable management and it looks nicer but these will cost more. what's your budget look like?
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a c 131 ) Power supply
a c 206 U Graphics card
August 14, 2013 2:26:28 PM

You don't want CM; their budget offerings are universally bad (with the exception of the GX450). With no further upgrades planned, one of the 300W Seasonic 80+ bronze units will be easily enough.
What is your existing PSU? It may actually be sufficient. In the recent $400 Spirit of Mini-ITX build, Paul found that his system only pulled 119W from the wall: http://www.tomshardware.com/reviews/mini-itx-do-it-your...
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a c 157 ) Power supply
a c 302 U Graphics card
August 14, 2013 2:31:34 PM

The 7750 is about the strongest discrete graphics card that does not need an auxiliary 6 pin psu connector.
It is powered entirely by the pcie-X16 slot.

Unless your current psu is abysmally cheap, it should run the card.
I suggest you try it first. If there is insufficient power, you might see artifacts or other symptoms.
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August 14, 2013 3:02:51 PM

carbongenius said:
I would go with a 500 watt psu depending on other hardware being used in your rig...i do not know your configuration but go with a seasonic, corsair or coolermaster. typically any brand will do. usually you will want a plus bronze certified or higher standard. I usually go for gold certified. I would also recommend a modular psu for the convenience of cable management and it looks nicer but these will cost more. what's your budget look like?
Sry I forgot to include the price range i am in. Im looking for a 50$ budget

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a c 157 ) Power supply
a c 302 U Graphics card
August 14, 2013 3:53:40 PM

The corsair CX430 is a decent psu and well within your budget.
It will power a card as good as a 7770 or GTX660.
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a c 131 ) Power supply
a c 206 U Graphics card
August 14, 2013 5:41:51 PM

Get the modular version though; the non-modular ones use some inferior Samxon capacitors that do not like heat and are known for early failure. The modular ones (although they're all made by CWT) use all-Japanese capacitors.
Another inexpensive option is the 380W Antec Earthwatts, also sufficient for any graphics card with a single 6-pin PCIe power cable.
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a c 131 ) Power supply
a c 206 U Graphics card
August 14, 2013 5:50:47 PM

Depending on the card you buy, the 500W Corsair, though not modular, may be sufficiently unstressed (<50% load while gaming) that it won't heat up enough to stress its Samxon capacitor(s).
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