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Old 04-30-2009, 01:14 PM   #1 (permalink)
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Default Is this psu any good?

Newegg.com - Rosewill TU-155 Black Steel ATX Black 0.8mm SGCC Steel Mid Tower Computer Case 400W(20+4 pin) Power Supply - Computer Cases

Hey guys trying to help someone out with picking out a gpu between $75 - $100 and the first thing that comes to mind is ati 4830 or 4770. However I'm not sure if his psu will handle them. He has a 400w and the recommended is 450w. However IIRC theres someone on here that runs a quad core with dual 4830's on a quality 380w. He only has a amd x2 7750 so I assume he'll be ok as long as he has a ok psu.

Is that psu ok? I don't expect greatness but as far as case/psu combos go I always thought Rosewill was pretty good.
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Old 04-30-2009, 01:20 PM   #2 (permalink)
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Default Re: Is this psu any good?

its not so much about the watts, but amps.

Output: 400W Max.
+3.3V 20A, +5V 14A, +12V1 14A, +12V2 13A, -12V 0.3A, +5VSB 2.5A

13-14A is pretty low, and as a general rule of thumb powersupplies that come with cases are not good

but this card should run on it considering it runs purely off on board power
Newegg.com - HIS Hightech H467QT512P Radeon HD 4670 IceQ Turbo 512MB 128-bit GDDR3 PCI Express 2.0 x16 HDCP Ready CrossFire Supported Video Card - Desktop Graphics / Video Cards
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Old 04-30-2009, 01:30 PM   #3 (permalink)
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Default Re: Is this psu any good?

I didn't even see the amps listed there. Hmmm anyone know the requirement for the 4830 or 4770?
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Old 04-30-2009, 01:35 PM   #4 (permalink)
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Default Re: Is this psu any good?

AMD's Radeon HD 4830 graphics processor - The Tech Report - Page 8
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Old 04-30-2009, 01:53 PM   #5 (permalink)
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Default Re: Is this psu any good?

Ok well looking at that and looking on the net it seems like that psu could run the card in a basic system. I've seen online that the 4830 by itself draws up to 110w, so that would be about 9a on the 12v rail right? And this is a basic dual core, 2x2 ram, single hdd system so I would think he would be ok (unless that psu is junk).
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Old 04-30-2009, 01:55 PM   #6 (permalink)
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Default Re: Is this psu any good?

Ughh do not want. check out this instead.

CM Store

Much nicer case and power supply, for no too much more coin.
Shipping from them is pretty reasonable as well.
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Old 04-30-2009, 02:26 PM   #7 (permalink)
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Default Re: Is this psu any good?

Well I'm pretty sure he already has the case and psu. If not then yeah I'll tell him to get something different.
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Old 04-30-2009, 02:33 PM   #8 (permalink)
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Default Re: Is this psu any good?

Oh, I thought you were asking if that was a good psu to buy...

Short answer is no, it isn't.
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Old 04-30-2009, 02:37 PM   #9 (permalink)
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Default Re: Is this psu any good?

So you don't think it could run a 4830, stock amdx2 7750, 1 hdd, 1 dvdrw, regular mobo, and a couple of fans?
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Old 04-30-2009, 03:21 PM   #10 (permalink)
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Default Re: Is this psu any good?

Quote:
Originally Posted by dario03 View Post
So you don't think it could run a 4830, stock amdx2 7750, 1 hdd, 1 dvdrw, regular mobo, and a couple of fans?
Might be pushing it, and when it does crap out on you, chances are it won't go alone, if you catch my drift...
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