Will radeon 4770 work @ 300w PSU

luckyyellow

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Hi I really need your help. Basically, I want to put a graphic card, hopefully HD4770, into a HP p6180t. It uses a 300W PSU, but I dont know the brand.

If not, do I have other options without change the PSU, it seems HP case has limited space for a standard PSU. How does Radeon 4670 sound? Any other suggestions?

Thanks and happy 2010
 

Dramamine

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I don't think that the PSU that came with it would be capable of running a 4770. The 4770 requires at least a 450W, but if the PSU was a good quality one, you might be able to get away with a lower wattage one.

I don't think the ones that came with the PC would be good enough.
A 4670 requires at least 400W, you could probably get away with it if the PSU is a good quality brand. A 4650, I'm sure, could work in the PC, though. It's an option to come with the PC when you order it online.

I don't know what the case for your PC looks like, so I'm not sure if you could change the PSU.
Good luck, though! Also, you can check what PSU you have if you look at it in the PC. It should say on the side.
 

luckyyellow

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I just did a calculation with the Antec Power Supply Calculator(http://www.antec.outervision.com/index.jsp) and it gives me 218W value. Does this mean that I should be fine with the 300W stock PSU?
 

luckyyellow

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Thanks. The case is normal HP mid tower, but I found the space is pretty limited for the PSU. Performance wise, is the 4650 similar to 4670?







 
The manufacturers suggested power requirements almost uniformly have nothing to do with reality and should always be ignored.
It can probably run the HD4770 but you wont know until you try. If you can afford it an HD5750 is a better card and uses slightly less power. An HD4670 should be no problem and is a lot better than an HD4650. Some other cards to consider are the newer 96/9800GTs that don't have a power connector.
 

luckyyellow

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19 AMP on the 12v rail. is it enough?


 

luckyyellow

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Thanks a lot. How much power does 5750 need? similar to 4670?

For 5750, the best price a can find is around $150, which is a little over my budget. But I will think about this option a little more.
 

luckyyellow

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Hi guys, I am back to thank you for help.

I bought a 4770 card and put into my computer w/ 300w PSU and it works beautifuly. Ran 3 hours of Crisis and not a single problem.

Hope this info will be helpful to who need to upgrade their video card in a weak PSU. Thanks
 

gsl13

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Hi, Which 4770 card u bought?