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Hd 5770 power supply

Last response: in Graphics & Displays
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November 22, 2011 3:00:36 AM

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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a b U Graphics card
November 22, 2011 3:09:06 AM

Short answer: No.
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November 22, 2011 3:32:20 AM

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.
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a c 171 U Graphics card
a c 85 ) Power supply
November 22, 2011 6:20:04 AM

500? Overkill.

Assuming a normal system, anything that can output around 250W would do fine. Most quality 380W PSU can do it.
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a b U Graphics card
a b ) Power supply
November 22, 2011 6:35:30 AM

Nope. A quality 300-350W PSU will do just fine. Take a look at the Antec EA380D.
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November 22, 2011 2:59:39 PM

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.
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a c 175 U Graphics card
a b ) Power supply
November 22, 2011 3:03:18 PM

No. I think it will be fine when you get 450w or above
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a c 358 U Graphics card
a b ) Power supply
a b α HP
November 22, 2011 3:07:53 PM

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.
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a c 175 U Graphics card
a b ) Power supply
November 22, 2011 3:12:15 PM

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.
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November 22, 2011 3:14:38 PM

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


What is what..a Hippro PSU?
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November 22, 2011 4:27:20 PM

PSU's like that are junk. Get something like Corsair or Seasonic. They're good quality PSU's.
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a c 175 U Graphics card
a b ) Power supply
November 23, 2011 1:11:21 AM

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.
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November 30, 2011 11:30:59 AM

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.
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a c 171 U Graphics card
a c 85 ) Power supply
November 30, 2011 11:37:26 AM

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.
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December 9, 2011 2:20:29 AM

Thanks for the replys everybody i ended up spending 80 dollars more on a 600 watt power supply by thermaltake
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December 9, 2011 10:23:30 AM

A Decent 400W will do fine ...
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