How to pick between two power supplies. Which will last longer and not kill other components?
Posted on 2005-03-14
Hi, i sell a few computer system from my home and wanted some expert advise on power supplies.
I have had some problems with power supplies going dead.
I know that I'm using cheap power supplies and I should be using better ones
But to keep computer prices low.. especially computers priced at $275-399, I have no choice but to use power supplies that comes with the case (the case is only $25)
The power rating on it says 400W
Here is the question:
I have a choice between two cases /w power supply at the same price, the two power supplies in the cases are different brand but same max rating of 400W.
Which one should I use? How do i test to see which one will last longer?
Is there a simple test with a multimeter or something to determine
a) which will last longer
b) which one has higher power rating (actual)
c) which is safer for the components
Some power supplies die within 2-3 months and although i get free replacements from the distributor, it is a hassle to have to change them for the customers
Also, if i had a choice between two other power supplies, 450W and 550W and they are the same price, is there something i should look for to see which one is going to not die on me and be stable