600W vs 650W

[alwateen]

Hello,

I have bought a Cooler Master 600W PSU

http://www.coolermaster.com/product.php?product_id=5906&category_id=30

the salesman wanted me to buy 650W Corsair

http://www.corsair.com/products/tx/default.aspx

I didn't have the budget for that - but now I am curious to what extent the differences between the 2 are

from what I have researched it is obvious that the 2 PSUs have differences in 12V Amps

my PSU has 2 12Vs which are 12V1 and 12V2 both of which are 18Vs so in total they are 36Vs

and the Corsair had 70Amps and that didn't have any 12V1 or 12V2

The real question is: 600 and 650 doesn't seem the huge difference - but 36 and 70 is a gigantic difference - Do we have to see the 12v Amps to judge the powersupply?

if yes - then what should be the 12V corresponding amps for a GPU like GTX260 with Core i7 setup - which is what I am going to buy in few months!

and in last - would my current PSU support the upgrade?

 

[Emperus]

You just now got taste of single rail vs multiple rail PSU.. The single rail corsair model is a better constructed and more efficient model as compared to the multi rail cooler master your bought.. I am sure your purchase will take you through your current rig.. However, the corsair model Would've been more upgrade friendly for future..

 

[saaiello]

There is a huge difference between those two units. Cooler Master has a very very bad reputation when it comes to PSU's they tend to not output their rated power and tend to fail when pushed to hard.

When you looked at the specs for the Corsair the 850 watt unit has 70 amps on the 12 volt rail the 650 watt Corsair has 52 amps which is still a huge difference compared to the Cooler Master's 36 amps. High end systems draw the bulk of its power from the 12 volt rail so having an adequate amount is crucial when working with higher end systems.

For the GTX 260 Nvidia recommends a PSU 500 watt or greater with two 6 pin PCI Express connectors. It is recommended also to have a quality PSU with at least 40 amps on the 12 volt rail. The Cooler Master unit you have will probably have no problems powering, but you will be pushing that unit to its max and could have catastrophic faliure and could take other components with it. I can not stress this enough to people that the power supply is one of the most important components in a system and should not be skimped on.

 

[JackNaylorPE]

The single / multi-rail issue is so misunderstood it's incredible....reality is it's "non issue".

Both sides (single rail folk and multi rail folk) claim that there design is better and it really doesn't matter. As for the "real life" differences, most form posts and salesman advice are based upon "brand loyalty" rather than actual published testing

Here's the Cooler Master Silent Pro M600 watt review which gets a 9.0 performance rating

http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=134

Now jonny didn't have a 650 watt review but he did have the Corsair TX750 and it only gets a 8.5 performance rating

http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=73

What we have to remember however is that the manufacturers build to those different market segments. Given a choice of the above (and assuming "for the moment" that the TX650 and TX750 are the same quality), the Coolermaster is obviously the better choice, price nonwithstanding.

Now if the Corsair model was an HX series, the situation changes. The HX series generally garners a 10.0 performance rating,a s does the Antec SG/CP for example. Antec, like Corsair also has a medium line (Corsair TX / Antec TP). Antec also has a budget line in the Basiq series.

You also have to remember that most PSU vendors don't actually build anything. The PSU's are built by OEM's. To make it more confusing, they generally have their hi end model made by one outfit, their medium quality unit by a second outfit and their budget models made by yet another. Choosing by "vendor name only" is therefore as baseless as choosing by what store you buy it in.

 

[Henry Chinaski]

The COOLER MASTER eXtreme Power Plus 600W is a low quality PSU. There are millons of better options.
If I were you I would try to return it and to buy another one.