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7850 with a Corsair 430w?

Those PSU's suck, not sure how efficient they are but they are not reliable in terms of life.

An OC'd 7850 under full load only pulls about 90 watts. Unless you are spinning a ton of drives it should be more than fine.

With an i5 3570k + a 7850 including all the other gear you will probably be pulling about 350 under full load, I read a review once that was pulling as low as 230 during benching.

Only problem is you do not leave much headroom for upgrades.
 
Gibbo3771 said:
Those PSU's suck, not sure how efficient they are but they are not reliable in terms of life.
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Source?

Personally I would take a branded Corsair series over a generic PSU (e.g. CiT, Sumvision, Casecom, Xenta etc.) any day of the week. They are built on a budget, but are still good quality units on the whole, as evidenced by pretty much the definitive site on PSU reviews:

http://www.jonnyguru.com/modules.php?name=NDReviews&file=print&reid=239




Gibbo3771 said:
With an i5 3570k + a 7850 including all the other gear you will probably be pulling about 350 under full load, I read a review once that was pulling as low as 230 during benching.

Only problem is you do not leave much headroom for upgrades.
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Agree totally with not leaving much headroom.
 
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CX430 are budget range so use cheap caps etc they aren't really that good, for a similar price you can get XFX 450w which is produced by Seasonic..meaning better quality caps etc.
 
those psu's are not that great and just because its corsair people take it for granted that its a good psu when it fact its ok but not great.

i would upgrade the psu if you want to overclock and add a decent gpu.

something like the xfx pro range are great.
 
dacads said:
CX430 are budget range so use cheap caps etc they aren't really that good
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teenwolf said:
those psu's are not that great and just because its corsair people take it for granted that its a good psu when it fact its ok but not great.
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I probably come across as blindly defending corsair, but again SOURCE?

As pointed out in the Jonnyguru review, if you had read it cheap caps does not necessarily mean bad caps.


teenwolf said:
something like the xfx pro range are great.
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dacads said:
for a similar price you can get XFX 450w which is produced by Seasonic..meaning better quality caps etc.
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While Seasonic may be a good OEM, the XFX 450 isn't actually that great a PSU - The +12V Rail actually goes out of spec during testing.

XFX have also advertised features that the PSU does not have:
In case you haven't caught on yet.... this power supply is a Seasonic S12II. It's one we've reviewed a couple times before under different brands and with different wattages and it's one that does not use DC to DC VRM's and it does not use solid caps
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http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=224


Edit: There was no question that 430w is probably borderline for his original application, but why argue that one budget PSU is worse than another that falls in the same price range... they are both built to a specific cost, both are considerably better than generic PSUs, but not as good as more fancy PSUs that will clearly cost more.
 
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You should be fine. My system is a AMD X6 overclocked to 3.6Ghz, they're not exactly energy efficient CPU's! plus a 6770, which is a fairly power hungry card.

I used a plug in power meter and the max I could draw from my system was 255w at the socket. I then crossfired it and it went upto 360w. You probably wouldnt want 430w at the socket from a 430w PSU but if your system is pulling roughly 250w then a 430w should be man enough to cover it.
 
Thanks for the help guys, but some people are saying to get rid and not use and it wont work ....whereas some people are saying it will be fine :S Im just gonna return it and get something with higher watts.
 
MouseMat2004 said:
You should be fine. My system is a AMD X6 overclocked to 3.6Ghz, they're not exactly energy efficient CPU's! plus a 6770, which is a fairly power hungry card.

I used a plug in power meter and the max I could draw from my system was 255w at the socket. I then crossfired it and it went upto 360w. You probably wouldnt want 430w at the socket from a 430w PSU but if your system is pulling roughly 250w then a 430w should be man enough to cover it.
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PSUs aren't rated at their socket capacity. They are rated at what they can deliver, so what they can pull from the socket will be higher than say, 430w depending on the efficiency.

So for example, an 80% efficient PSU at peak output will actually be pulling about 540w from the wall, so 360 from the wall is quite a bit of headroom.
 
Had one of these PSUs and it ran a Q6600 (stock) and a 6950 2GB (dual PCI-e 6-pin) without breaking a sweat.

You'll be fine.
 
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