PSU ATX 12V v2.3 and ATX 12V v2.2 Myth or what

I am using an ATX 2.2 with IB on an Asus P8Z77 board. Specifically this one http://www.corsair.com/tx650w.html/

But What is your Processor ?

3570K

i guess then its a myth .

And i have one more question , What is all about Active PFC and UPS ?

Some form UPS's will not work with some PSU's with active pfc. Never use an UPS so not an expert on the matter.

and Corsair PSU webpage says "0.99 Active Power Factor Correction provides clean and reliable power"
checkout the webpage http://www.corsair.com/en/power-supply-units/cx-series-...
I used to think that active pfc has to do something with input current ,
now what is all about reliable DC electricity .
DC power means electrons flows only in one direction , it hard to figure our which is unreliable DC current .
only parameters come to my mind are Current , Watt and potential difference
How to distinguish between two DC current i used to think that DC current is Universal now corsair says that there is something like
"reliable DC current " so there must be a " unreliable DC current " too . but the question is how to identify it ?

for me active PFC means :
1] no input voltage switch , a same psu can be used in different countries
2] and there is nothing like reliable dc power and unreliable dc power , DC current is universal

I shall update the post once i install the old PSU with no active PFC in it