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Convince me not to buy a new PSU

post #1 of 19
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Hello, power supply guys.

I'm planning to purchase that sweet MSI N560GTX-Ti Twin Frozr II in the near future, but I have this sneaky feeling that my 5 year old 520HX isn't going to be up to the task of powering my system (efficiently) after the upgrade.

I just recently moved to the Core i5 setup in my system information, and it's running at 4.7GHz on air at 1.4v just perfectly fine. I haven't had any power related issues since the move.

I ran the PSU calculator over here:
http://extreme.outervision.com/psucalculatorlite.jsp

...which suggests a recommended PSU wattage of 499w. Of course, my 520HX is sufficient by that measure, but I know there's more to it than that. The PSU has been running pretty much 24/7 for nearly 5 years now, and so I imagine it's starting to age in terms of its performance. I also need another 6-pin connector for the card, since the 8800GTS only requires one, and I don't know where I put all of my extra cable. Corsair might help me out with that, though. I'd also be able to power my old setup, should I pick up another PSU.

But I'm okay with not purchasing another PSU if I don't have to. I'd be able to get the 560GTX a month earlier, and that's awesome, if you know what I mean.

So if you please, help me help you help me decide whether or not I should actually grab a new PSU!

Thanks!
Jillian
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Jillian
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post #2 of 19
I would grab another one.... Your going to need a new one soon anyways. Go with a 750W or higher. I recommend looking at either Corsair or Seasonic.
    
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post #3 of 19
Antec earthwatts 750W. I ran GTX 470 SLI, water cooling, i7 920 at 4Ghz ect easy. Not a spec of trouble for the 750! Edit: You will only draw a very max of 450W total TDP usage btw! Those calculaters add so much on. The calc told me i would need a 1200watt unit for my sig rig! And that's with 70 TDP usage and lowest aging capacitor setting! it's a huge con!

Here is the unit. It's also Semi Modular.




One of the best i have had!
Edited by BradleyW - 4/17/11 at 7:11pm
X79-GCN
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X79-GCN
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post #4 of 19
I wouldn't want to risk killing all my new hardware. I replace my PSU every 5 years on my main rig, even if it's still kicking away great. It's just not worth risking it.

But this isn't what you wanted to be told
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post #5 of 19
I'm no PSU expert, but after 5 years the output of that unit is probably down maybe 5-10% i'm guessing.
    
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post #6 of 19
Quote:
Originally Posted by Vipr3 View Post
I would grab another one.... Your going to need a new one soon anyways. Go with a 750W or higher. I recommend looking at either Corsair or Seasonic.
Noo....

500W is plenty enough for a GTX 560 Ti.
Unlawful
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post #7 of 19
Quote:
Originally Posted by Kratthew D. Kraids View Post
I'm no PSU expert, but after 5 years the output of that unit is probably down maybe 5-10% i'm guessing.
It depends on the quality of parts used. Since its an HX520, it uses some very solid parts that are meant to last. Some of the capacitors have definitley degraded, but it's still not a problem.
Unlawful
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post #8 of 19
Quote:
Originally Posted by TheLaw View Post
Noo....

500W is plenty enough for a GTX 560 Ti.
Okay but still, why not go with a 750 or higher just for future purposes?
    
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Seagate 160GB & WD 160GB Win 7 Home Premium 64-bit x3 Acer S211HLBD 21.5" Kingwin Lazer 750W 
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post #9 of 19
If you are going to upgrade because you want to, that's one thing, but you don't NEED to upgrade..

It may be advantageous but there is no need here.

If you do upgrade, go with an up to date 500-600w unit. If you're still using an 8800 GTS, chances are this 560 will last you just as long as that did, in which case you definitely don't need an overkill PSU.
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post #10 of 19
My 24/7 for a while PSU would have run my current rig and everyone told me it would be fine. It wouldnt even post, I thought I had a bad mobo from a user here, and bought another mobo from a local stor. BSOD's like crazy.... New power supply? The first mobo was just fine.

Buy a new one! They wear out.
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