Quote:
Originally Posted by kendallcschm i know this is probably getting irritating to many memebers but whats wrong with this one??? the PSU im using in my gaming computer is one i got for free with a POS discount case that was damaged... it has lasted me 2 years.. its a 400 watt and quite nice.. i don't see anything wrong with this one?? im so lost.. im still kinda new to computers and budget builds.. |
You need to understand a power supply is not so simple as being 300W or a 400W, the marketing on them can be quite deceptive. For instance the rosewell PSU listed sure it says its 400W but lets do a breakdown.
20Ax3.3V = 60W
14A 5V = 70W
3.3/5V Total = 130W
12V1x14A = 168W
12V2x13A = 156W
Looks good right? Wrong. The PSU's own spec sheet indicates that it outputs 385W Peak, meaning assuming ideal conditions the PSU is only putting out at max 255W at 12V. Now temperature also plays a roll, PSU put out diffrent amounts of power at different temperature as the PSU gets hotter on a cheap unit like this the power output goes down, caps fail ect ect.
the PSU is one thing you never want to cheap on, ever. A failing PSU can take out just about every component in the system when it goes.