Tips from one who had experienced an error in choosing the components (PSU)

his tips are:
1. select Aktive PFC PSU that was 0.99%. PFC function is minimizing the electrical energy is wasted. Maximum size of the PFC is 0.99%.

2. select PSU is already certified "80 Plus" -> "80 Plus", "80 Plus Bronze", "80 Plus Silver", "80 Plus Gold"
check his website at http://www.80plus.org
on the web page there are various brands that have been certified "80 Plus". the higher its certified, the better ... and saving energy!

3. select a watt Pure! not interested in "peak".
vigilant and check back if there are listed 450 watts PSU, check and check with the seller, they will be mashed his PSU how much?
because it is a pure-under it, eg: PSU 450 watts, 380 watts puree it.
select the PSU 450 watts, 450 watts puree it (the same as those listed in the specification)

4. select the cooling fan is large, at least 12 cm or 14 cm. to prevent excessive heat. the bigger the better.

5. find information and ask again about his service service? whether the replacement replace 1 on 1. or just a regular service?
should select the service is directly replace the new ..