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Is this $350 PSU worth it? Bundle deal

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July 9, 2010 5:17:22 AM

Is this power supply worth $235?
http://www.newegg.com/Product/Product.aspx?Item=N82E168...
It comes with the nvidia evga 470 I was going to order, with a $115 dollar discount making the PSU $185 instead of $350...

The 470 needs 29 amp 12v rail, but this PSU is rated at 12v-20a. That means its a 20 amp line which is falling short of nvidias recommendation, or am I reading it wrong?

Was originally going to get a $170 corsair PSU that has 70 amp rails which is plenty enough.... but it's only 850w, while this sparkle PSU is 1250w and supposely a good deal....

Please help, thanks!
a b ) Power supply
July 9, 2010 5:31:53 AM

Yeah that Sparkle seems like a very solid PSU, though I haven't seen much in the way of good reviews about it.

I have a feeling it will atleast perform as well as that Corsair at the same wattage.

Go ahead and get it I say.
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a b ) Power supply
July 9, 2010 5:36:06 AM

I've trusted sparkle for their 350W PSUs which work well.

Although this model does not list a total combined +12V output, I cannot see it being below 1000W with those rails.

The 470 needs 29 amp 12v rail, but this PSU is rated at 12v-20a. That means its a 20 amp line which is falling short of nvidias recommendation, or am I reading it wrong?
Yes you are. There are 6 rails. You won't be loading just one, since that would only be 240W, not 1000+W.

As for the corsair, the brand is so tried and true by so many people, that it is for sure good. That model provides 840W on the +12V rail alone, making it definitely what they advertise.

I can't help you with which of the two to get without the rest of your system, because otherwise I cannot estimate what you need. But below are a few examples.

If you are triple SLIing 3 GTX 470s and have an overclocked core i7 CPU and 6 hard drives... that ads up to 905W on the +12V rails. (215W for each GPU, 200W for the CPU to be extra safe and 10W per HDD). In that case, go with the sparkle.

For just two 470s in SLI with the same setup as above, you get 690W on the +12V rails. The Corsair will be more than enough.

If you are just using one GTX470 with any CPU and hard drive combination, and have nothing else drawing significantly from the +12V rails, you could go with a corsair 650W and have more than enough power.
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July 9, 2010 5:58:45 AM

http://www.newegg.com/Product/Product.aspx?Item=N82E168...
If you view all combo's, there is a 1000w, 1250w sparkles, then a 950w corsair. This is with the normal 470 without the backplate and the new vent thing.

Here: http://www.newegg.com/Product/Product.aspx?Item=N82E168... This one has the backplate and the new vent thing. It's $30 dollars more, and there are no power supply combos... I was going to add a http://www.newegg.com/Product/Product.aspx?Item=N82E168... PSU.

I plan on adding another 470 in a few weeks for SLI, and that'll conclude the upgrade until I make another PC. I don't mind spending $30 or $80 more for better components... If the difference is within $100 dollars, then I don't care.. I just want the better parts choice as if they're all the same price. Don't want a 480.. I hear they're hotter, harder to overclock, louder because of the more heat, and it just doesn't seem like a good deal for now. 2 470's should be plenty for what I'm looking for... I just want to make sure I'm getting the full potential of 2 470's, with the most stable setup possible

System:
920 @ 4ghz
12gb 1600mhz ram
750w PSU
P6T V2
2 Harddrives, 1 CD rom,
6 fans, (included the water cooler pump as a fan)
X-Fi Fatal1ty champion

Thanks :) 
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a b ) Power supply
July 9, 2010 6:06:41 AM

Now that I'm looking at the combos, I would DEFINITELY go with this:
http://www.newegg.com/Product/ComboDealDetails.aspx?Ite...

Very good deal and that PSU will do perfectly fine for your system with 2 GTX 470s. I see no real benefit with the newer GTX 470 with the backplate an the vent, it seems to be more marketing than anything.
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a b ) Power supply
July 9, 2010 6:06:49 AM

I would get the 950W corsair combo. more than enough power, and if it brings it to the same cost at the 850W non combo corsair and the 470, then that's awesome. That's what I would get if it were me anyway. Good luck with what you decide on ;) 
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July 9, 2010 6:12:26 AM

Thanks guys

Whats the difference in bronze and silver? the silver 850w corsair for 170, and the bronze 950w corsair for 140. Is there a performance difference, or stability difference, or is that just saving electricity?
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a b ) Power supply
July 9, 2010 6:20:45 AM

Blckhaze said:
Thanks guys

Whats the difference in bronze and silver? the silver 850w corsair for 170, and the bronze 950w corsair for 140. Is there a performance difference, or stability difference, or is that just saving electricity?

Just saving electricity. I think there might be something like an up to 7% more efficiency rating for the silver over the bronze. I could be wrong on that number though.
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a b ) Power supply
July 9, 2010 8:16:15 AM

Efficiency is the ratio between the power being pulled from the wall and the power actually being delivered to the computer.

If a power supply presents higher efficiency it has some advantages: a lower electricity bill, less heat being produced and less noise being produced (the fan run slow due to the less heat produced) .
For example, if your PC needs 400W and your PSU pulls 500W from the wall, then your PSU efficiency is 80% and the PSU waste those 100W into heat.

This is the difference between tha bronze and silver certification:

80 Plus Bronze
20% Load ->82%
50% Load ->85%
100% Load ->82%

80 Plus Silver
20% Load ->85%
50% Load ->88%
100% Load ->85%

Finally. as other people has said before, I also would go for the Corsair TX950 + EVGA GTX470 combo. You will be able to run even 3x GTX470 buying that great PSU from Corsair.
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July 9, 2010 3:24:13 PM

$350 for a PSU? A sparkle??

Unless sparkle is a different company in the US as it is from the EU I would not touch it with a bardge pole. Had endless problems with sparkel products in the past.

Also $350 for a PSU is sheer madness, you could get a top end enermax for 1/2 that price.
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a b ) Power supply
July 9, 2010 5:09:25 PM

DO NOT BUY THE SPARKLE CRAP. TY!
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