OCZ PSU 600W StealthXStream vs Ocz PSU 500W ModXStream Pro

No need for the 600watts since no crossfire or SLI. Have you considered this one http://www.newegg.com/Product/Product.aspx?Item=N82E168...
Around 500watts is a good size.

So you suggest to go with the OCZ PSU 500W ModXStream Pro ?

Out of the two yes!

Why to choose the second one? Are the Watts or the price that matter in that decision? Or it has to do with its whole performance?

I'd like to know what lead you to this suggestion...

Thanks

StealthXStream is their std PSU ModXStream is one of their performance lines.

std -- standard perf. line? ModXStream better in all-around (average)...?!

Std=budget.

The general rule of thumb is a high quality 500 to 550 watt power supply with sufficient current (amps) on the +12 volt rail(s) can easily power a system with any single video card made. A high quality 700 to 750 watt power supply with sufficient current (amps) on the +12 volt rail(s) can power a system with two video cards operating in dual mode. There are a few exceptions like the new ATI Radeon HD 5XXX series cards which use less power due to their energy efficiency and the new Nvidia GTX480 which uses a lot more power.

A high quality 500 to 550 watt psu will have a +12 volt rail rated at 40 amps. A high quality 700 to 750 watt psu will have a +12 volt rail rated at 60 amps.

In addition the power supply should be at least 80+ Bronze certified for energy efficiency. There are some models available which have achieved 80+ Silver and 80+ Gold Certifications.

Before purchasing a new psu you will need to decide whether you will eventually have a pc with one or two video cards.

Corsair and Seasonic are two brands that have a reputation for high quality power supplies that consistently earn high marks in technical reviews. They are reliable, stable, and come with a 5 year warranty. Some of the newer models come with a 7 year warranty (in the USA). Lately we've been seeing a few other brands offering some high quality units. Two examples would be XFX and the newer Antec power supplies.

So...

What about this comparison:

1)Corsair HX520 Modular PSU http://www.newegg.com/Product/Product.aspx?Item=N82E168..., http://www.corsair.com/products/hx/default.aspx

2)OCZ PSU 500W ModXStream Pro http://www.newegg.com/Product/Product.aspx?Item=N82E168..., http://www.ocztechnology.com/products/power_management/...

Comparing those two (the first is a Corsair PSU...!) which one is the best (without taking consideration of the price...)

There is no comparison there, the Corsair beats the OCZ hands down, but it's kind of old and there are other options.

Options like (for Corsair or for other brands also)? When you say old? It's about wattage, performances or the cables that offers?

pandyred, what exactly is your situation? you are jumping everywhere with vague question.

you need a new PSU?
do you have budget?
what market are you in? USA? UK? are you looking on a specific web site? I see you keep linking newegg but some of the items are retired.
what video card do you plan to get with your system above?

They've been on the market for almost 5 years and are in the process of being discontinued to make room for the new lines.
Don't get me wrong , my HX620 is still purring along, but at the same price point of the HX520, the Seasonic M12II 520 and Antec TP 550 both offer higher efficiency.

I need to revise my "knowledge database" in hardware matters because I was "sidelined from this sport" for 3-4 years... I want to have my opinion in these matters and one way to achieve that is to discuss...

About newsegg, I find it quite helpful to use use links from there (even if the products are retired) because it has technical info/specifications...

I doesn't have to do with budget... I'm just considering building a new PC but not so soon to be on a hurry! So I just ask questions that are bothering me in order to "become tuned" in new hardware...
I had a PC accident, and I'm trying to ressurect it by healing certain parts of it... so that's way I'm asking specific hardware questions...

About PSU, I'm trying to figure out the new "facts". Some brands have become more trusted than they were and some other are new to me... So I'm trying to see what's going on in PSU market (PSU market for all-around but simple desktop PCs). A few years ago I didn't knew for ex. Corsair (and know i think that this is embarassing...   )

VGA: I'll probably buy a new one ex. ATI 5xxx series 1GB (no intension for CrossFire and things like that)

The only thing I want is to discuss matters I believe I need to know more...
I hope that I've answered all of your questions...

What exactly happened?

If your PSU died it could have killed everything else in your computer.

My PSU... still works! I'm considering an upgrade...

I use the 700W version of the ModXStream Pro and it's been very stable for me in a dual SLI setup. Modular is definitely a plus, and I'd definitely recommend the OCZ ModXStream Pro line of PSUs to anyone looking for one.