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Hi guys !

I have a Sapphire Vapor-X Radeon Hd 7770 and i am worried what power supply should i buy for it. I was intending to buy Antec VP550P 550w PSU and wanted to know if it's good and compatible. I also wanted to know if this psu has a high fan volume or not. Also wanted to know if this is compatible with the GPU I am willing to buy?

Willing to buy a Sapphire Vapor-X HD 7770 Ghz editon OC

Computer: HP Compaq Elite 8100 CMT (Convertible Mini Tower) PC

Windows 8 PRO 64-BIT
Intel Q57 Chipset
Core i5 650 3.20ghz/3.33ghz
Kingston 4gb ram 1333mhz
Seagate 320 HDD Momentus 7200rpm
LightScribe DVD/RW


Thnx
:??:
7 answers Last reply Best Answer
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  1. This is one of the best compiled lists out there of which PSUs are good, and which are trash. Stick to a tier 2 or above.

    http://www.eggxpert.com/forums/thread/323050.aspx
  2. Before recommending a PSU we need to know what else you have that will draw power. Namely:

    CPU and clock speed.
    RAM frequency.
    All storage devices.
    All peripherals.
  3. According to competent technical reviews, budget CM PSUs are little better than junk. HardwareSecrets has reviewed quite a few of them over the years, and HardOCP and jonnyguru have done some as well.
    For a HD7770, unless you've got a stack of hard drives AND a heavily overclocked 100+watt CPU, a 380W Antec Earthwatts would be my quick and easy choice for you. If not available, the modular Corsair CX-430M (not the non-modular CX-430) would also be suitable. All of the Corsair CX line are made for them by CWT, but the non-modular ones use some inferior Samxon capacitors that don't like heat and are known for early failure. I would not use one in a gamer. OTOH, the 380W Antec Earthwatts has been my "goto" PSU in budget builds for years, and I have yet to have one fail.
  4. Best answer
    I found this review of their "475" Watt unit, the littler brother to the one you are considering.
    http://www.hardwaresecrets.com/article/Cooler-Master-Extreme-2-475-W-Power-Supply-Review/1550/1
    Brands to buy, reputable brands: Seasonic, XFX (made by Seasonic), Corsair, Enermax, Antec, and PC Power&Cooling.
    Take a look at the list that jimthenagual posted. Consider a Corsair CX modular.
    CORSAIR CX500M 500W ATX12V v2.3 SLI Ready CrossFire Ready 80 PLUS BRONZE Certified Modular Active PFC Power Supply.
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139050
    Or this xfx:
    XFX Core Edition PRO550W (P1-550S-XXB9) 550W ATX12V 2.2 & ESP12V 2.91 SLI Ready CrossFire Ready 80 PLUS BRONZE Certified Active PFC Power Supply .
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817207013
  5. The lying noted about the "475W" version of the CM PSU is typical of the brand. That is unethical, and I therefor cannot with clear conscience recommend ANY product of the company, no matter how good.
    You aren't looking for high wattage, but for high quality. I stand by my earlier recommendations. While playing games, you are unlikely to actually use more than 220W-250W, which makes a 380W-450W PSU a comfortable size.
  6. jimthenagual said:
    This is one of the best compiled lists out there of which PSUs are good, and which are trash. Stick to a tier 2 or above.

    http://www.eggxpert.com/forums/thread/323050.aspx


    Maybe I'm lucky but I've been running a tier 5 ATRIX PSU for five years now.
  7. Onus said:
    The lying noted about the "475W" version of the CM PSU is typical of the brand. That is unethical, and I therefor cannot with clear conscience recommend ANY product of the company, no matter how good.
    You aren't looking for high wattage, but for high quality. I stand by my earlier recommendations. While playing games, you are unlikely to actually use more than 220W-250W, which makes a 380W-450W PSU a comfortable size.


    +1^
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