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Thermaltake toughtpower 750w

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Anonymous
a b ) Power supply
April 12, 2009 2:44:09 PM

Hi evrey1,

I am confused about the requirements of GTX 280 SLI. Some says 55amps but should that be on a single rail?

Will the Thermaltake toughtpower 750w w0117 work without being overloaded?

It has 4 rails @ 18 amps each but it only have 1 8pin connector.

Or should I get a used Enermax Galaxy 1000w for 70$ more but it sounds confusing again because the galaxy have 5 rails @ 17 amps which seems little.
a c 139 ) Power supply
April 12, 2009 3:09:59 PM

55 amps is 55 amps. One or more rails - it shouldn't matter.
I can't confirm that PSU can actually provice 55 amps of +12V. There isn't enough data on the data plate to be sure. You can't just add up each +12V rail - you have to known the max +12v the PSU can actually produce.



For comparison here is the Corsair 750TX data plate (and it happens to be less expensive):

Anonymous
a b ) Power supply
April 12, 2009 3:33:58 PM

So the corsair TX750 will do GTX 280 SLI without shortening its life.

Is it better to get a used Enermax Galaxy 1000w for 70$ more?
It has 76amps from 5 rails(900w on the 12v) but I am picky because it is used and its performance may degrade. :??: 
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April 12, 2009 3:44:59 PM

Corsair > Enermax. If you really want 1000W, go for the Corsair HX1000. I have one of those and it's awesome. But really, unless you're SLIing dual-gpu cards, or going for tri-SLI+physics, there's not much point to a 1000W. Something like the TX750 would be fine.

As a rule I never buy 2nd hand PSUs, you never know how long they've been running, how much load they've been under, what conditions they've been exposed to, etc. etc. etc.
Anonymous
a b ) Power supply
April 12, 2009 4:14:18 PM

Ok, so now thers the TX850(70amps) and the TX750(60amps). The price difference is 20$.
a c 139 ) Power supply
April 12, 2009 4:22:09 PM

Either one will be fine. It's your choice.
Anonymous
a b ) Power supply
April 12, 2009 4:25:35 PM

Just to let you know that I took the TX850. It ended up being only 10$ more loll Newegg in canada charges alot for shipping.

Thanks guyz You gave me confidence and that was the best choice.

cheers
a c 139 ) Power supply
April 12, 2009 4:33:37 PM

Did you check to make sure it would fit in your case?

edit; it's the 1000w Corsair that you have to be careful about - the 850TX shouldn't be a problem.
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