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Is my PSU good enough? AMD 8350 + HD7770

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December 10, 2013 8:41:45 AM

Hi guys.

So this Christmas I'm planning to buy a new motherboard and CPU and hoping my best I don't have to buy a new PSU.

The CPU I'm buying is an AMD FX-8350 which I am planning to overclock to around 4.4GHz and the mobo I may buy is an ASUS Sabertooth 990FX R2.0.
The PSU I currently have is a Coolermaster GX550W and it's currently holding up fine with any Issues.
My current specs are -
AMD FX-4100 OC@4.1GHz
Gigabyte 990FXA-D3
Asus 1Gb AMD Radeon HD 7770 DirectCU
1TB Hitatchi 7200RPM HDD
120GB Seagate 7200RPM HDD
7 x Fans
1 x Fan controller

The only things I am planning to replace are the Mobo and the CPU... Will my GX550w be able to handle it? I'm also planning to buy an R9 280x in the future and also wondering if it will be able to cope with that, too.

Many thanks guys, I hope I included all the info you need.
December 10, 2013 8:47:44 AM

You should upgrade to at least a 750w for future proofing because of the R9 280x.

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December 10, 2013 8:52:37 AM
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It should be enough for an r9 280x but it would be pushing it. Like rahbot said upgrade to a 750 for more headroom and one that is at least bronze rated.
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December 10, 2013 12:01:43 PM

cooler master isn't known to have the best power supplies but it will work. I wouldn't run it on with that card though. At least a 750 is a good option unless you have a case that holds two power supplies for more flexibility later on.


also that board isn't that bad at all, you aren't going to see really any improvements unless you are going for higher overclocks
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December 10, 2013 1:18:40 PM

06yfz450ridr said:
cooler master isn't known to have the best power supplies but it will work. I wouldn't run it on with that card though. At least a 750 is a good option unless you have a case that holds two power supplies for more flexibility later on.


also that board isn't that bad at all, you aren't going to see really any improvements unless you are going for higher overclocks


The GA-990FXA-D3 is rubbish for over clocking. I've only managed to get 4.0Ghz out of my FX-4100 because of the crappy VRM. The VRM on this is only a 4+1 Phase VRM and it doesn't even have a heatsink on the Mosfets... It's poo to say the least. The max TDP it can push out is 100W... I'm going for the sabertooth because it has a nice 8+2 phase VRM and has a heatsink on them.. but you know that because you have that board :p  You have the 8320 right? is it worth me buying the 8320 and just over clocking it as there is no difference between the 8320 and the 8350 apart from clock speeds? as far as I know...
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