Should i replace my 3 month old power supply? I have no issues with it, but am a little worried because it was a "cheap" one. Its a HEC/ winpower 850 watt. http://cgi.ebay.co.uk/RETAIL-BOXED-...s_EH?hash=item20ac760353&_trksid=p3286.c0.m14 Ive read a few reviews about HEC power supplys in general and they seem to get pretty good reviews. My pc needs around 575 watts to run according to my gpu manual. Does anyone have any experience with this brand?? Thanks in advance!