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DO I NEED AN NEW PSU OR NOT?

Last response: in Components
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May 28, 2011 10:30:49 AM

I´m getting a new graphic card the XFX Radeon HD6950 1 Gb XXX Edition Dual Fan, So I´m Worrying will my 650W PSU Be Enough???

Or should i need a new one, im gameing at 1920X1080 ???



My PC --->
MB: Gigabyte 870A-UD3
Processor: AMD Phenom II X4 965 BE
Graphic Card: Sapphire Radeon 1 Gb Vapor-X OC Edition
RAM: Kingmax 4 GB 2X2GB 1600 Mhz DDR3
PSU: LC POWER Silent Giant Green Edition 650 W

More about : psu

a c 104 ) Power supply
a b U Graphics card
May 28, 2011 10:56:21 AM

Its not the wattage I'm bothered about, its the 19A on your 12v rail,
Look for one with more like 38A on a rail for that card man
Moto
a c 83 ) Power supply
a c 114 U Graphics card
May 28, 2011 11:25:42 AM

It is a 2 rail power supply, but there is not much listing of the combined rating.

The LC Power website has a picture in the manual that looks like it has 368 watts on its 12 volt rails.

That would make for one of the weakest 650 watt power supplies I have ever seen(it looks like it should be from a 400-450 watt unit).

This is not to say that it is not enough power for your system as such, but it may be kind of edgy.

If you can open up your computer and check the power supply label for a combined power under the 2 12 volt rails(maybe that is a picture from a lower end green unit).
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a c 104 ) Power supply
a b U Graphics card
May 28, 2011 11:31:16 AM

I cant find the page I got the 19A data from, but iirc the second rail is 17A
I cant find many reviews, and none in english so that in my book says all I need to know lol :p 
Moto
a c 144 ) Power supply
a b U Graphics card
May 29, 2011 1:56:11 AM

36 amps from a 650 watt PSU is still pitiful. A good 650 watt PSU should produce at least 50 amps.
a c 83 ) Power supply
a c 114 U Graphics card
May 29, 2011 12:21:57 PM

It is important to know that many companies still use the older supply setups(there was a time when +12v was not the important rail. Sometimes it is just to slap a nice 650 watt sticker on it....).Those are not 12 volt heavy units. This does not make them bad as long as the system can live within that lower 12 volt current rating.
a c 87 ) Power supply
May 29, 2011 1:20:40 PM

I'm thinking that the answer to the question posed in the thread title, based a lot on what has been said so far in thread, is yes.

I seem to remember looking into this particular power supply a few months ago and don't remember liking what I was finding.

If you tell us your budget and your location/where you are buying from, we will steer you in the right direction.
a c 83 ) Power supply
a c 114 U Graphics card
May 29, 2011 10:20:50 PM

cronos177 said:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
This is a great Deal, 2x12V rails and 38Amps each rail, for only $65 free ship.

Does newegg ship to Croatia?

Hey you do know you do not just add rails together like that right?
38a + 38a = 76amps
76a * 12v = 912 watts.

each rail CAN deliver 38 amps IF the other rail is not loaded over 16 amps. If it is, the power supply shuts down.
As long as rail 1 + rail 2 = or less then 54amps all is good, but they can not both give 38 amps at the same time.

Sorry, i just hate misinformation.

Niny13, On that website, the images are too small to read. I have a feeling it would work, but it may be close.

Closest system to yours i have was a 955BE(@ 3.7) + 4870(about 15 watts less power draw then your card)
Wattage at the wall is higher then actual DC wattage as well

As you see computers do not take THAT much power, but without knowing that power supply maker or the exact specs(i cant just add the 2 12 volt rails without knowing if it is that way, some are many are not), it is hard to tell.
a c 104 ) Power supply
a b U Graphics card
May 29, 2011 10:25:09 PM

I looked on their site faq for shipping, they use air but I couldn't find anything about international delivery, maybe email them and enquire?
Moto
a c 83 ) Power supply
a c 114 U Graphics card
May 29, 2011 10:37:04 PM

I know before newegg.ca they did not even ship to Canada.
May 30, 2011 2:07:30 PM

Guys Thanks For All The Help, In The End I Think I´ll Need A New Power SupplyAfter All XD
I Was Thinking Corsair But I Dont Really Know Which One, What About This Gaming Series It Says They Are The Ideal Price-Performance Solution What Do You Think???
http://www.corsair.com/power-supplies/non-modular-psus/...
a c 104 ) Power supply
a b U Graphics card
May 30, 2011 2:13:42 PM

48a on the 12v, your looking good mate, nice find :) 
Moto
a c 83 ) Power supply
a c 114 U Graphics card
May 30, 2011 3:37:09 PM

+1 corsair is very good.
May 30, 2011 5:11:44 PM

Oke Now Only Which One Should I Take? 600W? 700W? Or 800W?
What Do You Prefer?
a c 87 ) Power supply
May 30, 2011 9:13:38 PM

You don't really have the motherboard to run two 6950s in crossfire at a decent speed - the Gigabyte 870A-UD3 has two PCIe slots, but when both are populated they run x16/x4 and it is usually much better for them to run x8/x8 - there's nothing you can do about this besides getting another motherboard.

So you don't need that much wattage for just one card. So my suggestion is the 600W one. Unless you know that in the future you will be getting a motherboard that can support two cards in crossfire at decent PCIe speeds.
a c 83 ) Power supply
a c 114 U Graphics card
May 30, 2011 10:40:36 PM

600 should be plenty.

I do not see that system pulling much over 300-350 at the wall anyway(MAX anyway). That said, a 600 will give you good efficiency when the system is loaded.

If you plan an upgrade in the future such as multi card or extreme overclocking then getting a bigger unit may be a good idea.
a c 104 ) Power supply
a b U Graphics card
May 31, 2011 6:22:50 AM

I dont think Op intends on crossfire Silv,
at least I didnt pick that up from post,
I thought its a new single card he's trying to power,
Niny? one or two cards in the system mate?
Moto
a b ) Power supply
a b U Graphics card
May 31, 2011 12:18:37 PM

Motopsychojdn said:
48a on the 12v, your looking good mate, nice find :) 
Moto



Corsair is an excellent choice...

Here learn how to calculate your PSU requirement.


http://www.antec.outervision.com/
a c 87 ) Power supply
May 31, 2011 12:33:47 PM

Motopsychojdn said:
I dont think Op intends on crossfire Silv,
at least I didnt pick that up from post,
I thought its a new single card he's trying to power,
Niny? one or two cards in the system mate?
Moto

I agree, I didn't see any indication that he was planning to run crossfire. But so often people on forums like this one won't provide all the details that they probably should, so I was trying to cover all bases by saying what I said.
May 31, 2011 1:21:05 PM

Motopsychojdn said:
I dont think Op intends on crossfire Silv,
at least I didnt pick that up from post,
I thought its a new single card he's trying to power,
Niny? one or two cards in the system mate?
Moto


No I´ll Sell The Sapphire Radeon 5770 Vapor-X OC To Buy The XFX Radeon 6950 1 Gb XXX Dual Fan Eiditon :) 
So Thanks All Of You For The Great Help, As Soon As I Get A Little More Money Ill Buy The Graphic Card And The PSU :D 
!