Hd 5770 power supply

Hi i was thinking aout buying an hd 5770 graphics card. Will my hp 300 watt psu be able to support it.
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More about 5770 power supply
  1. Short answer: No.
  2. No you would need atleast a 500 or 550 Watt PSU. I would go with more to me you can never have to much power.
  3. 500? Overkill.

    Assuming a normal system, anything that can output around 250W would do fine. Most quality 380W PSU can do it.
  4. Nope. A quality 300-350W PSU will do just fine. Take a look at the Antec EA380D.
  5. 4745454b said:
    500? Overkill.

    Assuming a normal system, anything that can output around 250W would do fine. Most quality 380W PSU can do it.


    Not really. Like I said you can never have to much power. I have a 850Watt PSU. I don't use that much power but if I want to upgrade hardware later I don't have to get a new power supply. I would rather have to much power then not have enough or just barely enough. 500 Watt's isn't that much more anyway its not like I'm telling him to get a 1000+ Watt power supply.
  6. No. I think it will be fine when you get 450w or above
  7. For a 300w PSU the most I would recommend is a Radeon HD 5670. But it has to be a good quality PSU. Not sure which brand of PSUs HP has in their PCs.

    For the Radeon HD 5770 / HD 6770 I recommend at least a 350w good quality PSU or a 400w average PSU.
  8. jaguarskx said:
    For a 300w PSU the most I would recommend is a Radeon HD 5670. But it has to be a good quality PSU. Not sure which brand of PSUs HP has in their PCs.

    For the Radeon HD 5770 / HD 6770 I recommend at least a 350w good quality PSU or a 400w average PSU.


    My HP desktop has Hipro PSU. I don't know what's that anyway.
  9. refillable said:
    My HP desktop has Hipro PSU. I don't know what's that anyway.


    What is what..a Hippro PSU?
  10. PSU's like that are junk. Get something like Corsair or Seasonic. They're good quality PSU's.
  11. I know, it also don't have 6 pin connectors (for GPUs). So basically HP 300w PSU are not good and also not compatible for GPU. So the answer is: NO.
  12. It's not all about the watt consumption, but the amperage, you should aim for ~40A in the 12v rail. or ~20 in each 12v rail if you have two.
    and with watts i wouldn't consider even trying to use a 300w PSU in any pc with a non-onboard GPU, at least not with the current consumptions the mobo, cpu and disk will need the entire PSU output when at max load. so, if you are planning on installing a gpu, get a nice 600w PSU with a high ampere load.
  13. Quote:
    or ~20 in each 12v rail if you have two.


    Except it doesn't work that way. My PSU has two rails, each individually rated at 22A. According to what you wrote above, I should be fine. But the PSU can only provide 34A altogether, which falls short of your 40A mark.

    The best thing to do is find out how much power you need, and then buy a PSU that can reliably provide that power and more. If you need 200W under load, don't buy a 650W PSU. If you'll be CF/SLIing, make sure you have enough for your cards and the right connectors.
  14. Thanks for the replys everybody i ended up spending 80 dollars more on a 600 watt power supply by thermaltake
  15. A Decent 400W will do fine ...
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