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Is a 500W PSU adequate for this GPU and CPU + some overclocking?

post #1 of 11
Thread Starter 
I'm probably going to be doing some upgrading on my PC in the coming month or two, and I'm just trying to determine which components from my old build I can hang onto. I'll be keeping my current graphics card (AMD Radeon HD 5770) and probably be replacing my CPU/RAM/motherboard with a platform centered around the new Ivy Bridge i5-3570K, which I intend to overclock. (Graphics card will very likely be left at stock settings.) Other than that the build will probably be pretty spartan -- just one hard drive and one DVD drive and a few USB accessories. I currently use a 500W Rosewill PSU that I got about three years ago. Should that be up to the task or do I need to be considering replacing it? Thanks in advance!
post #2 of 11
That is a poor PSU, but it will do... all you need for that setup is a <300W PSU.
post #3 of 11
That's one of the low-end, old ATNG models, right?

It should do, but if you have the money, you may as well get something of higher quality to use while you're already in the process of ripping out all the guts of the computer anyway.
post #4 of 11
That PSU is really more along the lines of a 312 W unit. The 12 V rail (the one that powers both the CPU and GPU) is only rated for 26 A, for a wattage of 312 (12 V * 26 A). It can handle an overclock on an IB processor and a 5770 most likely, but it will be kinda close. My overclocked i5-2500k and 6870 use a little under 300 W at load, though Ivy will be more power efficient, and a 5770 only has one 6-pin (iirc), so you'll be under that mark.

In all honesty, that's an older low-end unit, you might want to consider updating it to something with a beefier 12 V rail. You don't need too much power (not much more than 300 W), but the components would be of higher quality so it would be a lot more reliable. Even a cheaper (in price not quality) $50ish unit now would be a good upgrade if you can afford it. Make sure to look for recommendations here first though, to avoid getting a low-quality one.
post #5 of 11
Quote:
Originally Posted by mikeaj View Post

That's one of the low-end, old ATNG models, right?
It should do, but if you have the money, you may as well get something of higher quality to use while you're already in the process of ripping out all the guts of the computer anyway.

Yeah.. really old design(-5v rail and all that goodness, pre 2003).
post #6 of 11
Thread Starter 
Okay, well I was planning on using some of the old stuff from my current build for a file server, so I will add my current PSU to components reserved for that purpose. As far as a new PSU, what about something like this? It's in the $50 range (actually cheaper thanks to MIR smile.gif) and has nine more amps on its 12V rail. I'm not particularly good at judging a good PSU from a bad one though, so what do you fellows recommend?
post #7 of 11
Quote:
Originally Posted by nonoitall View Post

Okay, well I was planning on using some of the old stuff from my current build for a file server, so I will add my current PSU to components reserved for that purpose. As far as a new PSU, what about something like this? It's in the $50 range (actually cheaper thanks to MIR smile.gif) and has nine more amps on its 12V rail. I'm not particularly good at judging a good PSU from a bad one though, so what do you fellows recommend?

Actually,this is a great one to get http://www.newegg.com/Product/Product.aspx?Item=N82E16817182199
And yes,it's a Rosewill smile.gif Straight from OCN's rec. list.
http://www.overclock.net/t/183810/faq-recommended-power-supplies/0_20
Edited by Redwoodz - 4/11/12 at 5:03pm
Amelia
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Amelia
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post #8 of 11
The Cooler Master GX450 is not bad, but the best deals right now for cheap but decent PSUs seem to be Rosewill Green Series. There's also a 430W model.

Something of a little higher quality than that is Antec Earthwatts Green 650W for $60 after the promo code listed; we're talking way way way overkill wattage, but I don't see anything of higher quality that's $60 or less.
post #9 of 11

The Green series is also ATNG built but much better.  It provides better quality than the Corsair CX series for similar price or lower and I reckon same with GX450.

post #10 of 11
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182199 <<This PSU @ that price point
TBH I'd break myself and get the $60 630w one myself tongue.gif
 
Thuban Powah!
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Thuban Powah!
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