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Advice on whether or not new power supply is needed

Last response: in Graphics & Displays
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September 17, 2011 7:34:18 PM

Hi,

It may seem I'm posting on the wrong forum, but be patient :D 

I'm about to acquire a new VGA but I'm not sure if my current power supply can handle it.

Current Power Supply:
Cooler Master 600W Extreme Power Plus

VGA i want to get:
Nvidia GeForce GTX 570 2.5gb version


It seems I'm just in the threshold in power usage, but just to be sure I wanted to ask you guys first. I currently have a GTX260 running without problems (and overclocked CPU).

The rest of my system specs are:

CPU: Intel i7 920 @2.8GHz
HDD: 2TB Green and 1TB Black Seagate drives
DVD: 1 DVD drive
RAM: 3 DDR3 memory sticks (2gb each)
PCI: 1 Soundblaster X-fi xtrememusic


And that's pretty much it. Also, right now there are 6 deals in newegg that are really useful If i had to buy a PSU:

http://www.newegg.com/Product/ProductCombos.aspx?Item=N...

Only Corsair, but I've heard good things about their PSU's


Thanks a lot!!!
a c 214 U Graphics card
a b ) Power supply
September 17, 2011 7:42:13 PM

If your PSU is this

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Then their's no way it's going to work.I don't even know why they would make something like that.It's really only capable of delivering 250watts at best.

None of those combo's are good but if I had to choose one I would choose this one.

http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...

What's your budget for a new PSU?
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September 17, 2011 7:52:19 PM

purple stank said:
If your PSU is this

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Then their's no way it's going to work.I don't even know why they would make something like that.It's really only capable of delivering 250watts at best.

None of those combo's are good but if I had to choose one I would choose this one.

http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...

What's your budget for a new PSU?



Yup, that's my PSU... When you put it like that I feel bad lol... And by the way, why would you get the HX instead of the AX version?


purple stank said:
Here's what I would get.

MSI Twin Frozr GTX570

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Seasonic 750watt

http://www.newegg.com/Product/Product.aspx?Item=N82E168...

If you needed to go a little cheaper on the PSU then this PSU is another good choice.


http://www.newegg.com/Product/Product.aspx?Item=N82E168...



Hi! Why would you get the Twin Frozr 570 when for the same price you can get the EVGA with 2.5GB memory? (honest question, i actually want to know)

My budget is pretty much whatever I have to spend, but I don't want to spend a single unnecessary dollar, so you might say it's between 100-200 bucks.

Thanks!

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a c 214 U Graphics card
a b ) Power supply
September 17, 2011 8:50:30 PM

Lol.Well you should.Cooler Master makes some great products but when it comes to Power Supplies they fail really hard.Just think about it, they advertise that PSU as being able to deliver 600watts but it actually only delivers less than 300watts.That could be dangerous for someone that wants to build a high end rig and thinks it's an actual 600watt.

I'm not sure exactly why the TX,AX or HX is better I've just seen lots of people use the HX and hear lots of good things about it.But most of the higher end stuff from Corsair is good.

So your budget for the PSU is $200 or for both?
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a b U Graphics card
a b ) Power supply
September 17, 2011 9:35:15 PM

I think any of the Corsair PSUs would be OK.
I sure hope $100-$200 isn't for the GPU as well :p 
I think the Twin Frozr would perform around the same level as the EVGA, since it's clocked higher. Also, they're not the same price; the EVGA is $50 more.
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a c 214 U Graphics card
a b ) Power supply
September 17, 2011 9:47:19 PM

I would rather the Twin Frozr because the cooling is so much better than the EVGA.Those combo deals don't really give you any reason to buy it.Only $30 off at most.
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a b U Graphics card
September 17, 2011 10:17:41 PM

if you are only running the single gtx 570, I don't see the point of spending more than this: http://www.newegg.com/Product/Product.aspx?Item=N82E168...
or this:
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

It will run everything you have just fine. Unless you want a modular power supply, you won't need to spend more than these good units.

Also read this if you want: http://www.tomshardware.com/reviews/power-supply-psu-re...

heres a quote from the conclusions: "Choosing the right capacity is often more effective than choosing the wrong PSU with a higher efficiency rating. Buying too big just to be on the safe side is counter-productive and only makes sense if you actually need the reserves."

So, summary... buy as much power as you need... and buy quality
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a c 214 U Graphics card
a b ) Power supply
September 17, 2011 10:19:18 PM

I'm not sure the OP's intentions are to SLI but it's always good to get a PSU that can handle it for the future if the budget is open.
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a b U Graphics card
September 17, 2011 10:25:29 PM

read the toms article in my previous post bro, unless he has serious intention on doing SLI, it's not the best idea to buy an overpowered power supply.

OP it is your call, if you need the power then buy a 750 watter or more, if not then you wont need more than a GOOD 650 unit, not that coolermaster crap lol
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a c 214 U Graphics card
a b ) Power supply
September 17, 2011 10:28:29 PM

Why isn't it a good idea?

Even if the OP isn't going to SLI the more power the PSU doesn't have to supply will just make it more efficient.
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a b U Graphics card
September 17, 2011 10:41:47 PM

no it doesn't, you didn't read the article I linked....-_-, it actually works in the opposite way as you think.

I will reiterate from the articles conclusions (read it yourself for the evidence); "Buying too big just to be on the safe side is counter-productive and only makes sense if you actually need the reserves."
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a b U Graphics card
a b ) Power supply
September 17, 2011 10:55:42 PM

amirp said:
no it doesn't, you didn't read the article I linked....-_-, it actually works in the opposite way as you think.

I will reiterate from the articles conclusions (read it yourself for the evidence); "Buying too big just to be on the safe side is counter-productive and only makes sense if you actually need the reserves."


While the above statement from the review is "generally" true it's also useful to have a "reasonable" reserve for future upgrades so you don't need to buy a new PSU everytime your do an upgrade as that would be poor economics. Each person would need to evaluate their current and future needs and the costs of PSUs at the time of purchase. In my world too big would be buying a high-end 850W or 1000W PSU when all you really need is a quality 500W PSU. So it's a matter of how big is too big?

In addition PSUs with 80% efficiency will not see a big difference in annual electricity costs from say a 500W to a 750W PSU based on efficiency or wattage.
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September 17, 2011 11:09:36 PM

purple stank said:
Lol.Well you should.Cooler Master makes some great products but when it comes to Power Supplies they fail really hard.Just think about it, they advertise that PSU as being able to deliver 600watts but it actually only delivers less than 300watts.That could be dangerous for someone that wants to build a high end rig and thinks it's an actual 600watt.

I'm not sure exactly why the TX,AX or HX is better I've just seen lots of people use the HX and hear lots of good things about it.But most of the higher end stuff from Corsair is good.

So your budget for the PSU is $200 or for both?


I dont have a budget, I can get pretty much anything I want (well, I'm not spending 1000dls). But as I've said before, I want to spend the exact amount of money I HAVE to spend, I don't really like getting things I dont need.

So to answer your question, 200 for PSU only, and gtx570 is definitive.


I won't get SLI ever, although if it's possible and worth it, I might leave my gtx260 as a PhysX card (I don't really know how it works though). So if you think anything over 650w is just for SLI purposes, then 650W is fine.

I DO overclock my CPU though, and I plan doing the same to the VGA.


Knowing this, what would be the community's verdict?
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September 17, 2011 11:17:00 PM

oh, and I plan to change VGA's annually, but never SLI
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a b U Graphics card
September 17, 2011 11:33:57 PM

well according to this (scroll down for the gtx570):
http://www.tomshardware.com/forum/279391-28-power-requi...
you will be more than fine with a 650 watt PSU, including overclocking on both GPU and CPU. I'd buy the corsair one I posted above. Also do you want a modular power supply (means you can remove any extra cables)?
If yes then you buy the HX650 instead of the TX650.

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a c 214 U Graphics card
a b ) Power supply
September 18, 2011 12:50:34 AM

amirp said:
no it doesn't, you didn't read the article I linked....-_-, it actually works in the opposite way as you think.

I will reiterate from the articles conclusions (read it yourself for the evidence); "Buying too big just to be on the safe side is counter-productive and only makes sense if you actually need the reserves."


All that says is it's a waste of money to get a bigger PSU if your not gonna use the extra power.In no way does it make the PSU supply power a negative.I don't think you read it correctly or your not understanding it.
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Best solution

a c 214 U Graphics card
a b ) Power supply
September 18, 2011 12:54:16 AM

Well even though you won't be SLI'ing if you buy a 750watt it will last a lot longer and who knows you might want to someday.The closer you are to maxing out the PSU the faster capacitor aging will take place.Not really a big deal.Anyway you should be fine with a 650 watt then.

Both this PSU and the one I linked before is suits your needs fine.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...
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September 26, 2011 6:09:21 PM

purple stank said:
Well even though you won't be SLI'ing if you buy a 750watt it will last a lot longer and who knows you might want to someday.The closer you are to maxing out the PSU the faster capacitor aging will take place.Not really a big deal.Anyway you should be fine with a 650 watt then.

Both this PSU and the one I linked before is suits your needs fine.

http://www.newegg.com/Product/Product.aspx?Item=N82E168...


Nah, I'll never SLI...

Although I still want to know which GTX570 to buy... I thought more vram was better than some more clocks since you can just tune clocks but you cant get more ram
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a c 214 U Graphics card
a b ) Power supply
September 26, 2011 7:04:34 PM

More VRAM will only benifit you if you use a large resolution.Otherwise it was the same performance.
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September 26, 2011 7:55:53 PM

Best answer selected by tabur.
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