thanks guys for the resurrection of this thread , and the interest in the outcome
first off letme say this about pcp&c ,first rate company ,with a great c/s atittude, called them on the following monday , i asked for an rma , they said no problem, called the next day and asked if i could upgrade to the 850, they said no problem, i asked for cross shipping , and they said no problem
recieved the 850 this week and installed it (with guess what)............................................................. no problem
the 510 was a good psu but in my box but the fans would change rpm"s up and down with a full load (2xp95 rthdribl) but not with the 850 its been 8-9 hours with this going
thanks again guys for all the help
sincerlt tom