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post #21 of 54
Quote:
Originally Posted by Emissary of Pain;12593573 
Hey just_nuke_em,

I apologize if I came off aggressivly ... Having a bit of a rough day ...


I am from South Africa ... the Continent of rip off's ... lol ... All I am saying is that the TX650W for R850 (us +\- $120) in this country is a bargain worth grabbing ...

Once again ... I apologize
I'm having one of those days too, just gotta stick in there cheers.gif

But yeah, don't worry about your TX650. It's a good unit, and you aren't anywhere near it's full capacity and it should last you through it's entire warranty.
    
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post #22 of 54
Quote:
Originally Posted by Emissary of Pain View Post
Antec True Power New 550w says :

4x 12v rail ... I have read that Single rail PSU's are much better for high end systems so that users can avoid the whole 12v rail loss where they use less than what the 12v rail supplies and what is left over can't be passed onto another rail ... ALSO ... combine 12v rail = 504w = +\\- 42amp on teh 12v ... ... the TX650w supplies 52Amps ... ... 10 less ??
Multi rails are better than single rails for power hungry rigs, they provide more protection and apart from that, there is no performance differences between the two. All of that rail distribution stuff is irrelevant.

The TX650 is higher wattage yes, but I was more or less talking about electrical performance. More watts =/= better PSU.

Whether you're upgrading to two 6950's or one GTX 580.... your TX650 is good enough.
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post #23 of 54
Thread Starter 
Quote:
Originally Posted by GameBoy View Post
Multi rails are better than single rails for power hungry rigs.

So far I have read a few reviews in the past and all disagree with you ...


How is losing amperage on a rail not important ?? ... surely a large single rail which can provide to all components without loss to less hungry components would be much better ??

Also ... Does Antec mark which cables are powered by which rail ?? ... many ppl who arent geniuses may overload or underload a single rail ...
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post #24 of 54
Quote:
Originally Posted by Emissary of Pain View Post
Antec True Power New 550w says :

4x 12v rail ... I have read that Single rail PSU's are much better for high end systems so that users can avoid the whole 12v rail loss where they use less than what the 12v rail supplies and what is left over can't be passed onto another rail ... ALSO ... combine 12v rail = 504w = +\\- 42amp on teh 12v ... ... the TX650w supplies 52Amps ... ... 10 less ??
Single rails are not better than multiple rail PSU. They are either the same as a multiple rail PSU or slightly worse. Multiple rail PSU's have extra protection in case of a short. Single rails PSU's have that protection removed.

A quality of a power supply is not judged solely by how many amps it provides on a certain rail.

How efficiently it converts AC power to DC power is a factor since that saves you money and reduces heat.

Another factor is ripple. Some power supplies have lower ripple than others. Lower ripple is better since it puts less stress on components.



Transient response is another factor. Good transient response means how quickly the PSU's voltage maintains spec while transitioning between load and idle (and vice versa).

post #25 of 54
Quote:
Originally Posted by Emissary of Pain View Post
So far I have read a few reviews in the past and all disagree with you ...


How is losing amperage on a rail not important ?? ... surely a large single rail which can provide to all components without loss to less hungry components would be much better ??

Also ... Does Antec mark which cables are powered by which rail ?? ... many ppl who arent geniuses may overload or underload a single rail ...
http://www.overclock.net/power-suppl...explained.html

Read it to get a better understanding on the difference between modern Multi and Single Rail PSU's.

Edit: You can safely ignore any review that tells you Single Rails are better as they do not know what they're talking about.
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post #26 of 54
Thread Starter 
Hey Riou,

I understand where you coming from with what u saying ...

Could you maybe get some charts showing the antec tpn 550w\\HCG-620 against the TX650 ??

I have read about low ripple etc but I can't find comparisons ...
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post #27 of 54
Thread Starter 
Quote:
Originally Posted by GameBoy View Post
Read it to get a better understanding on the difference between modern Multi and Single Rail PSU's.

Edit: You can safely ignore any review that tells you Single Rails are better as they do not know what they're talking about.

That does give a new perspective on the whole safety issue between single\\multi rail psu's ...

I did just skim over that article ... but apart from safety ... there is no performance gain or loss ... I am sure that ignoring the safety of multi rails ... ... Single and multi rail psu's each have their pros and cons ...

But so far apart from safety ... both are basically the same ... ... so unless corsair makes terrible psu's with high ripple ... the TX650 should be better than the 2 antecs we listed

Correct ??
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post #28 of 54
Thread Starter 
Lets avoid a war on this thread ... lets say ...

The 3 PSUs listed are all good ... the TX650W is more powerful but not Necessarily better ...

Until we find direct comparisons that is ...
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post #29 of 54
Not quite, they're pretty even to be honest, but in most places the Antec is cheaper, which gives it a plus over the Corsair. Why pay more for the same thing with a different label?

The original Corsair TX650 is a seasonic designed unit, just like the Antecs. The insides are pretty much identical between the two. They are equal, because they're based on the same platform.

And with multi-rail units, you will often find that the maximum draw for all the rails is higher than the maximum output, this means the system can cope with a heavy load on one rail when then other is not loaded so much. And any decent multi-rail design will have the connectors split up so high load situations are not a problem. Look at the Silvertone 1500w unit, it has a stack of 40a rails, and it can cope with pretty much anything.
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post #30 of 54
Quote:
Originally Posted by Emissary of Pain View Post
That does give a new perspective on the whole safety issue between single\\multi rail psu's ...

I did just skim over that article ... but apart from safety ... there is no performance gain or loss ... I am sure that ignoring the safety of multi rails ... ... Single and multi rail psu's each have their pros and cons ...

But so far apart from safety ... both are basically the same ... ... so unless corsair makes terrible psu's with high ripple ... the TX650 should be better than the 2 antecs we listed

Correct ??
What I meant is, if you took a Corsair TX650 (which is a single rail) and made it into a multi-rail, it would perform exactly the same electrically.

The Corsair outputs more watts compared to the HCG-620 and TP-550... but the HCG and TP-550 are still better. Watts isn't the only thing to consider when comparing PSU's... you have build quality, efficiency, rippe supression, voltage regulation, transient filtering etc.

Quote:
Originally Posted by allikat View Post
Not quite, they're pretty even to be honest, but in most places the Antec is cheaper, which gives it a plus over the Corsair. Why pay more for the same thing with a different label?

The original Corsair TX650 is a seasonic designed unit, just like the Antecs. The insides are pretty much identical between the two. They are equal, because they're based on the same platform.

And with multi-rail units, you will often find that the maximum draw for all the rails is higher than the maximum output, this means the system can cope with a heavy load on one rail when then other is not loaded so much. And any decent multi-rail design will have the connectors split up so high load situations are not a problem. Look at the Silvertone 1500w unit, it has a stack of 40a rails, and it can cope with pretty much anything.
The TX650 is S12/PSHII, the HCG is S12II.
Edited by GameBoy - 3/3/11 at 4:03am
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