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Will this power supply be enough to power my desktop?

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October 10, 2012 10:38:49 PM

All I want to know is will a 500W power supply be able to power an AMD Phenom II X4 965 BE + a Cooler Master V6GT CPU cooler + an HD 4870 512MB GDDR5 + an NVIDIA GT 520 1GB GDDR3 + 4GB DDR3 1333MHz RAM + 1.4TB of HDD storage?

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a b ) Power supply
October 10, 2012 10:44:04 PM

Well, it depends on the 500W PSU. If its junk, probably not. If its a good brand, you should be fine.

Also, why are you running a GT520? Its too slow for Physx if that's what you want. If its just for displays on a desktop, it shouldnt have a problem.
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October 10, 2012 10:52:57 PM

Deemo13 said:
Well, it depends on the 500W PSU. If its junk, probably not. If its a good brand, you should be fine.

Also, why are you running a GT520? Its too slow for Physx if that's what you want. If its just for displays on a desktop, it shouldnt have a problem.


Okay, what if I got myself a 600W power supply? I'm looking at getting a Thermaltake TR2 500W or 600W power supply.

I was planning on running the HD 4870 and the GT 520 together with Hybrid PhsyX. I've heard that even low power cards that support PhysX will work wonders in games that support PhysX. You're saying it won't even make a tiny bit of difference?
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a b ) Power supply
October 10, 2012 10:57:47 PM

Thermaltake TR2's are not very well made power supplies. Get something by a better name, such as Corsair, Antec, Seasonic, or PC Power and Cooling.

Do you already have your 4870?

And the GT520 will run Physx yes, but it would be severely holding the computer back. You will barely be able to run it at acceptable frames. You need a more powerful card to run Physx.

I'd recommend the GT640. If that's too much, go for a older card off of Craigslist. Anything below an 8800GT or 9800GT might be a bit slow. A 9600GT would be fine.
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a c 148 ) Power supply
October 10, 2012 10:58:24 PM

I would give your current psu a try.
520w is ok if it is of decent quality.
No harm will be done if it is not sufficient.

It is my understanding that most any second card with sufficient cuda cores(32) is ok for physx.
But... I am no expert there. Again, try it.


If you buy a replacement psu, buy only a quality unit. The thermaltake tr2 unit is a tier 5(not recommended-replace asap) unit on this list.
http://www.eggxpert.com/forums/thread/323050.aspx
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a b ) Power supply
October 10, 2012 11:00:27 PM

Didn't think of it that way as said above.

If you already have the power supply and the 4870, keep them, they are still good cards. But you are going to need a beefier card to run Hybrid Physx.
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October 10, 2012 11:58:16 PM

Deemo13 said:
Didn't think of it that way as said above.

If you already have the power supply and the 4870, keep them, they are still good cards. But you are going to need a beefier card to run Hybrid Physx.


I have a few other power supplies in mind.

Cooler Master 625W Extreme 2 v2.3 Power Supply
Cooler Master eXtreme Power Plus 600W V2.3 Power Supply
Corsair Builder Series CX500 V2 500W 80 PLUS Bronze Certified Power Supply

All around the same price.

Are any of these better than the Thermaltake TR2 600W PSU?
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a b ) Power supply
October 11, 2012 12:12:46 AM

The Corsair I would say is a bit better. It should be enough to run what you have.

But I still wouldn't get the 520. Its not strong enough to run a Hybrid Physx setup.
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a c 148 ) Power supply
October 11, 2012 1:42:58 AM

firinmylazerman said:
I have a few other power supplies in mind.

Cooler Master 625W Extreme 2 v2.3 Power Supply
Cooler Master eXtreme Power Plus 600W V2.3 Power Supply
Corsair Builder Series CX500 V2 500W 80 PLUS Bronze Certified Power Supply

All around the same price.

Are any of these better than the Thermaltake TR2 600W PSU?


The coolermaster s are iffy, in tier 4, I think you can do better.
The Corsair CX is usually a good value psu

A cheap psu is the last place to economize.
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October 11, 2012 2:46:17 AM

Okay, what about a OCZ ZS-Series 650 Watt 80PLUS Bronze Performance Power Supply? It's 10% off, because it's open box, but it's been tested and guaranteed to work. There's a $25 mail-in rebate with it too.
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a b ) Power supply
October 11, 2012 3:12:21 AM

That's pretty good. What's your budget?
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October 11, 2012 3:22:02 AM

Deemo13 said:
That's pretty good. What's your budget?


My budget is no more than $60 before taxes for a PSU. All of the power supplies I mentioned are within that range (and then some)

Between the OCZ ZS 650W and the Corsair Builder 500W, which one is better?
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October 11, 2012 4:43:29 AM

Deemo13 said:
I would go with the OCZ.

Here are some other good units.

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

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

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

I'm an Antec fan myself, so I like the last one.


Yeah, I was originally going to go with the OCZ power supply, but I backed out because I'm reluctant on buying used stuff, but they've tested it, and it works, which in my logic means that (while it's been opened, it at least works) whereas with a brand new PSU, yeah it might be new, but who knows if it actually works or not, you know? Plus the possibility of getting it for up to $35 off is nice.
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October 11, 2012 3:54:53 PM

Deemo13 said:
I would go with the OCZ.

Here are some other good units.

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

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

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

I'm an Antec fan myself, so I like the last one.


Okay, how much power does an HD 4870 512MB consume at full load? I heard it's anywhere between 130 and 170W So, let's just round it up to 180W. Then there's the CPU, which consumes 125W of power, and then the motherboard, which consumes let's say... 50W, then the Cooler Master V6GT Cooler, which I'm not sure of when it comes to power consumption, but each fan on the cooler uses about 9W of power, and then there's the LED light which is powered by a 4-pin molex connector (apparently, Cooler Master says it provides 200W+ of power,) then there's the GT 520 which consumes about 30-40W of power, so...

180W - GPU 1
125W - CPU
50W - MOBO
50W? - CPU Cooler
25W? - RAM
40W - GPU 2
10W - HDD's

= 430W (let's round it up to 450W just to be safe)

Will the Corsair Builder Series CX500 V2 500 Watt 80 PLUS Certified Power Supply be able to handle up to 450W of power all the time? 80 PLUS means up to 80 efficiency right? Doesn't that mean that a safe operating wattage would be no greater than... about 400W of power max at 80% efficiency? Am I correct on this whole thing, or...?

EDIT: pcpartpicker is saying this desktop will consume about 360W of power, but I would imagine that they don't take into consideration the amount of power that a graphics card uses at full load, so...

EDIT 2: Also, the HD 4870 apparently requires a minimum 500W power supply, but I have no idea what kind of system they used to determine that number. I'm using a power hungry CPU, a giant aftermarket CPU cooler, and a power hungry HD 4870, plus a GT 520 to boot, so...

EDIT 3: I'm writing about this, because I may just have lost out on buying the OCZ power supply.

EDIT 4: I haven't even gotten into volts and amps and such. I have no idea how to calculate how much a single +12V rail will be able to handle, or even what that means...

EDIT 5: I need to have this figured out in the next couple of hours...
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a b ) Power supply
October 11, 2012 7:41:52 PM

The CX500 should work fine.

And don't get the GT520. It won't run Physx very well I guarantee it.
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