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Can a 430W power a 6850?

Last response: in Graphics & Displays
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September 2, 2012 8:09:29 PM

Can it power it along with my other parts?

CPU: Intel Core i5 3470 3.20GHz Socket 1155 6MB L3 Cache Retail Boxed Processor

Motherboard: Asus P8H77-M LE H77 Socket 1155 8 Channel HD Audio mATX Motherboard

RAM: G-Skill 8GB (2x4GB) DDR3 1600Mhz RipjawsX Memory Kit CL9

Hard Drive: 500GB Seagate

Optical Drive: Samsung SH-222BB DVD Rewriter

Power Supply: Corsair 430W V2 CX Series




More about : 430w power 6850

September 2, 2012 8:18:12 PM

Ignore vegettonox's comment.

Check the 12V amperage of that 430W PSU. Chances are that it's plenty for your computer, but don't go off chance alone.
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September 2, 2012 8:19:00 PM

That Corsair 430W is more than enough for it ;) .
September 2, 2012 8:21:14 PM

I noticed on the amd website it says they recommend a 500w but will it really need that much?
September 2, 2012 8:24:08 PM

The total wattage of a PSU is almost irrelevant. All that matters much is the 12v amperage. This wasn't always true because 5/3.3v used to be more important, but they aren't anymore for most power-eating components (CPU and graphics), so older PSUs that have say 500w ratings focus on the lower voltages instead of the higher 12V voltage that newer 500W PSUs focus on because that's what newer CPUs and graphics cards use the most. The 500W recommendation is probably made with the idea that older 500W PSUs should be able to deal with it, among other things (such as the fact that many cheap PSUs can't hit their rated wattage anyway).

Pretty much any PSU with around 25-30 amps total or so on the 12V rail(s) should be plenty with some extra room for upgrades as well as wear and tear (PSUs degrade over time).
September 2, 2012 8:26:55 PM

Don't ignore my comment, a 430 watt may power that initially but on heavy draw or as it ages i wouldn't trust it for stability.
September 2, 2012 8:27:05 PM

blazorthon said:
Ignore vegettonox's comment.

Check the 12V amperage of that 430W PSU. Chances are that it's plenty for your computer, but don't go off chance alone.


I don't really understand this stuff but on the back of the box it says +12V 336W am I looking at the right thing?
September 2, 2012 8:31:50 PM

vegettonox said:
Don't ignore my comment, a 430 watt may power that initially but on heavy draw or as it ages i wouldn't trust it for stability.


Total power usage with his system wouldn't be higher than 200 watts. If it was some crap brand power supply, sure, it would not be enough. However, the one he uses is very decent and will not degrade that much to not be able to supply 200 watts.

awwr said:
I don't really understand this stuff but on the back of the box it says +12V 336W am I looking at the right thing?


Yes you are. Don't worry, it will work without any problems.
September 2, 2012 8:33:31 PM

awwr said:
I don't really understand this stuff but on the back of the box it says +12V 336W am I looking at the right thing?


Sometimes, it doesn't mention amperage specifically and states the wattage on that rail. That means that the 12V rail(s) on that PSU can use up to 336W aka 28Amps of 12V power (W = A * V). That's still the same power supply. The rest of its wattage is from the 5V and 3.3V rails. That PSU is plenty for your computer. I recommend it.
September 2, 2012 8:35:49 PM

Sunius said:
Total power usage with his system wouldn't be higher than 200 watts. If it was some crap brand power supply, sure, it would not be enough. However, the one he uses is very decent and will not degrade that much to not be able to supply 200 watts.



Yes you are. Don't worry, it will work without any problems.


That PSU might degrade that badly if it's run near maximum load 24/7 for a decade or two :) 
September 2, 2012 8:40:24 PM

yes it can. if you look up the december 2011 500$ budget build here on toms, you see them attempt a 430w antec earthwatts using a 6870 and i5-2400. it will work if you chose the lower power consumer of course.
Anonymous
September 2, 2012 8:42:14 PM

That Corsair will power your system with a 6850!

There is not too much room for wiggle though so don't be adding much more to your system!

I calculate 335W With 90% Load and 10% wear, longer wear goes on less Watts you have, so right now its fine, will be Ok with another HDD and run fine for a good few years
September 2, 2012 8:46:04 PM

Well i was thinking of upgrading to a better card and psu in a few months round about Christmas so it seems i would be ok until then?
September 2, 2012 8:48:23 PM

That depends on what you upgrade too. This PSU should be fine if your graphics upgrade is a Radeon 7850 and that is a substantial improvement in performance from the 6850. The even better 7870 is also fine with this PSU with your other system specs.
Anonymous
September 2, 2012 8:51:00 PM

you're fine:
a non reference card (will draw a little more power)
MSI Radeon 6850 Cyclone Power review
Power Consumption
Our test system is based on a power hungry Core i7 965 / X58 system. This setup is overclocked to 3.75 GHz.
Measured power consumption

System in IDLE = 172W
System Wattage with GPU in FULL Stress = 290W
Difference (GPU load) = 118W
Add average IDLE wattage ~ 19W
Subjective calculated GPU power consumption = ~ 137W
September 2, 2012 8:52:47 PM

Anonymous said:
you're fine:
a non reference card (will draw a little more power)
MSI Radeon 6850 Cyclone Power review
Power Consumption
Our test system is based on a power hungry Core i7 965 / X58 system. This setup is overclocked to 3.75 GHz.
Measured power consumption

System in IDLE = 172W
System Wattage with GPU in FULL Stress = 290W
Difference (GPU load) = 118W
Add average IDLE wattage ~ 19W
Subjective calculated GPU power consumption = ~ 137W


That should be enough proof that this PSU can handle your current specifications with a Radeon 6850 for many years to come. A Radeon 7850 or 7870, like I said, wouldn't use much more power.

For reference, a 7870 is better than two 6850s in CF for gaming.
September 2, 2012 9:04:58 PM

Just wanted to echo those who have said that you'll be fine. Your CPU is not overclockable and you don't have anything else in your system that will draw appreciable power, so a 6850 will run just fine and leave you a little headroom to boot.
September 2, 2012 11:14:41 PM

OP, you have your answer (albeit many people said it :)  ). If you have no further questions, would you mind selecting a best answer so that other people know that this thread is finished?
September 3, 2012 10:40:51 AM

awwr said:
I noticed on the amd website it says they recommend a 500w but will it really need that much?


Well a friend of mine is running a GTX560TI off a CoolerMaster Elite RS-460-PSAP-J3 "460"W PSU, I have that one myself and am pretty sure it would explode if it reached a 460W load, so chances are that PSU will be more than enough, as long as it can actually put out 430W.
September 3, 2012 10:46:42 AM

UnlimitedBanana said:
Well a friend of mine is running a GTX560TI off a CoolerMaster Elite RS-460-PSAP-J3 "460"W PSU, I have that one myself and am pretty sure it would explode if it reached a 460W load, so chances are that PSU will be more than enough, as long as it can actually put out 430W.


It's a Corsair. If it says that it can do 430W, then it can do 430W. I might be able to do more than 430W safely for short periods of time.
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