A few questons about GTX460 1GB
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neeger93




Posts: 917

PostPosted: Thu, 28th Oct 2010 11:29    Post subject: A few questons about GTX460 1GB
So my 8800GT decided to give up on life and now I'm thinking about buying a 460GTX 1GB. My main concern is that my PSU will not be able to handle it. I have some fairly random 400W PSU and the NVIDIA site recommends at least 450W. I'm also running an Asus P5B Plus Vista edition mobo, a Q6600, 2 HDDs,a DVD Drive and some Zalman cooler. For lack of my knowledge in electricity here's a pic of the PSU:



Is there any chance it will do or is a PSU upgrade required (I've read about people running a GTX 460 on 400W Corsair PSU). If so what would be the best option, keeping in mind that I'm on a budget, and if there are any good alternatives that would work with my current PSU.

Thanks in advance!
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sabin1981
Mostly Cursed



Posts: 87805

PostPosted: Thu, 28th Oct 2010 11:38    Post subject:
IMO? No. Not a chance. The Corsair VX450 has a lot more power under the hood than advertised.. and, more importantly for any PSU, the amperage on the +12v rail. You need a lot more than 16A to power a GTX460, bud.
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neeger93




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PostPosted: Thu, 28th Oct 2010 11:41    Post subject:
Well I expected that. Any advice for upgrade (PSU or another GPU)?
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sabin1981
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PostPosted: Thu, 28th Oct 2010 11:48    Post subject:
pwerelds should be able to help you with that, the guy has an inexhaustible supply of knowledge when it comes to power requirements and suggestions Very Happy
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neeger93




Posts: 917

PostPosted: Thu, 28th Oct 2010 12:09    Post subject:
Thanks!
I'll send him a PM soon if he doesn't notice this thread himself.
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Werelds
Special Little Man



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PostPosted: Thu, 28th Oct 2010 12:17    Post subject:
lol @ Sabin :$
Hardly inexhaustible Razz

Anyway, I'm surprised your 8800GT survived for so long on just 16A, that's pretty damn low. Even the 8800 needs a good 11.5A, so 16A for the 8800 + all the other shit hooked up to the 12v rail is pretty darn low.
As for PSU suggestions, the Corsair VX450 mentioned by Sabin is a ridiculously well built unit and that will do for your needs. Should be around €50-55. You could optionally go for something like Be Quiet!'s L7 430, which is €8-10 cheaper, but also delivers a good 50W less across its 12v rails. OCZ's StealthXtream/ModXtream 500W would also suffice, but my choice would be the VX 450.
It's a Seasonic build, can deliver 396W on its 12v rail (that's 88% of its rated power, exceptional for a unit of that magnitude) and it's pretty quiet too. Between 400W and 500W there is simply no match for the VX450 in value Smile
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neeger93




Posts: 917

PostPosted: Thu, 28th Oct 2010 12:36    Post subject:
Assuming that I get the VX450, for how long you suppose it will suffice. It would be nice if I can also use it with whatever GPU I will get after the GTX 460. Oh and the 8800GT lasted for 2 years and five monts.

EDIT: How do Corsair VX550 and CX600 fare against the VX450 considering they cost around the same where I live.
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sabin1981
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Posts: 87805

PostPosted: Thu, 28th Oct 2010 12:54    Post subject:
<3 pwerelds

I'm still loving my VX450, this baby continually surprises me on just how efficient and powerful it is. Power requirements on cards (GTX470/480 aside) actually DROP over the years, so newer cards shouldn't be too much of a hassle for the VX450. I've been running a massively OCed dual core, 4GB RAM, six HDDs, one burner, a bunch of USB devices *and* my Radeon 4780-1G -- so it's definitely got the power to cope. Later cards like the 5xxx and 6xxx Radeons (and the GTX460 from nV) have LOWER power requirements.

If you can get the VX550 for the same price; DO IT! Same Seasonic build and well worth getting.
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neeger93




Posts: 917

PostPosted: Thu, 28th Oct 2010 12:58    Post subject:
Well thanks for all the help sabin and pwerelds. Think I'll get the VX550 then.
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Werelds
Special Little Man



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PostPosted: Thu, 28th Oct 2010 13:19    Post subject:
Actually, the VX550 is a CWT build Smile

Still a solid unit though, handles 8A more on its 12v rail, for a total of 492W so that's pretty powerful as well, 89% of its rated power Smile

CX series are inferior to the VX450/550, so they're definitely the better choice. And as Sabin says, video card requirements are getting lower, at least for AMD cards Razz
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neeger93




Posts: 917

PostPosted: Thu, 28th Oct 2010 13:27    Post subject:
Well now I can't decide between the two. So in your opinion which has the better value if they cost the same?
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sabin1981
Mostly Cursed



Posts: 87805

PostPosted: Thu, 28th Oct 2010 13:30    Post subject:
pwerelds wrote:
Actually, the VX550 is a CWT build Smile


Doh! Sorry, I forgot.. the VX450 and TX650 are SS, whereas the ones in between - and the later models - are Channel Wells Sad
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Werelds
Special Little Man



Posts: 15098
Location: 0100111001001100
PostPosted: Thu, 28th Oct 2010 14:40    Post subject:
Nothing wrong with CWT per se, most of Corsair's units are CWT and they're pretty solid. Seasonic is just the Lenovo in PSUs Very Happy

@ neeger93: VX550 is fine mate, it's just a bit more noisy and it gives you a tiny bit more headroom Smile
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