Originally posted by: MonkeyWrench4000
I think Compusaguy is nuts. I build computers all the time, for small businesses and homes, and I have hardly ever run into any compatibility problem. I have never used any expensive power supply in my life, I always use the no name brand one that comes with that $20 case special.
Building a computer is not only easy, its near impossible to screw up.
I would like to see a source showing the many many computer parts that dont work together, because I have never had a piece of hardware that refused to function on a certain mainboard, or with another piece of hardware.
For a basic system (no multiple hard drives, no overclocking, one optical drive, one stick of ram, no dual channel... ) a cheap psu is usually fine. But it's still the single most likely thing to cause you headaches, be it bad performance due to multiple components drawing too much power from one rail, or inconsistent voltages, or whatever.
Every problem I've ever had that wasn't a defective part was caused by a cheap psu (that's not the case for absolutely everyone, but it is for me). Lockups on my old voodoo2 card, a cd-writer that had a 50% success rate from hdd, and 0% on the fly from the other optical drive, random reboots when i added a second memory dimm; all were cured by a new psu in the various systems.
My theory is if it isn't broken, leave it alone; I have a system with a generic psu in my living room that runs fine, except that it's capable of being overclocked significantly, but for the cheap psu. New users tend to get frustrated more quickly than the rest of us; they aren't used to troubleshooting step by step, and they may not even have an idea of what the right steps even are!
You don't need 500w $150+ power supplies unless you have a LOT of system, but the extra $10-25 to get a good 350 or 400w psu can save a LOT of headaches, and I would recommend to almost anyone to step back their cpu by one step if they need to do that in order to upgrade the psu; because you will frequently have less trouble with the final system.