Which Power Supply should I buy?

[sxulocktor]

Hello People, i'm new in the forum.

i need help becuase, i need to buy a power supply. the options are:

Rosewill RX-630-S-B

http://www.newegg.com/Product/...E16817182149&Tpk=rx630


or



Istar USA 750W TC-750PD1

http://www.newegg.com/Product/...17147045&Tpk=TC-750pd1




I'm from argentina, and here, there are very few good power supplies, so these 2 options are the unique that i have.


The Rosewill, here is priced 140 dollars, and the Istar USA is priced 180 Dollars.




Which one should i buy?



thx for all!

 

[BassBomb]

neither...
Do you have a website that you are buying from so we could look?

Antec Earthwatts are good PSU's
Corsair makes very good PSU's

 

[sxulocktor]

no, because the powersupplies aren't "important" in this country : /

the options are the rosewill or the istar....


there are some resellers that sells antec powersupllies, but are the "entry level " antec powersuplies, and corsair, tagan, enermax, etc are priced + 300 U$D, because, this country has very high customs for electrical products.


so, of this 2 power supplies, which is betteR?

 

[beray]

Originally posted by: sxulocktor
so, of this 2 power supplies, which is betteR?

Ignoring power requirement... Get the Istar, from the engineering point of view the Rosewill had an inherent design weakness which the Istar didn't have.

As far as faith, belief, or trust in companies with quality components, you'll have to get that from another expert.

 

[Zap]

Originally posted by: sxulocktor
there are some resellers that sells antec powersupllies, but are the "entry level " antec powersuplies

Which entry level Antecs, and at what prices? Even the cheapest current models, the Basiq, is not that terrible. If you can get one of the Basiq 500W units for a good price, or maybe an EarthWatts, which is next up on the Antec PSU totem pole. You don't need to get a TruePower Quattro or TruePower Trio for a quality unit.

 

[HOOfan 1]

Originally posted by: beray

Originally posted by: sxulocktor
so, of this 2 power supplies, which is betteR?

Ignoring power requirement... Get the Istar, from the engineering point of view the Rosewill had an inherent design weakness which the Istar didn't have.

As far as faith, belief, or trust in companies with quality components, you'll have to get that from another expert.

What weakness?

Who is the OEM for the Istar?


I swear if I squint really hard at the picture of its badge it says 161451...which is CWT and it also says Model PSH750...which is CWT...but for that price????

 

[beray]

Originally posted by: HOOfan 1
Who is the OEM for the Istar?

I'll refer this one to suppliers/resellers, if they do their job properly they would know.

Originally posted by: HOOfan 1
What weakness?

The Rosewill's 3.3V and 5V shared a single rail all the way out to distribution endpoints. This made it even more prone to cross regulation failure. Very common to older designs and low end PSUs.
http://c1.neweggimages.com/New...mage/17-182-149-17.jpg

The Istar's 3.3V and 5V share a single rail but both 3.3V and 5V used independent secondary. which allowed for greater output current and the 3.3V didn't have to withstand as much blocking voltage as the Rosewill's 3.3V was forced to.
http://c1.neweggimages.com/New...mage/17-147-045-07.jpg

 

[JEDIYoda]

Originally posted by: beray

Originally posted by: sxulocktor
so, of this 2 power supplies, which is betteR?

Ignoring power requirement... Get the Istar, from the engineering point of view the Rosewill had an inherent design weakness which the Istar didn't have.

As far as faith, belief, or trust in companies with quality components, you'll have to get that from another expert.

-- so your an expert....okay