Power Supply problem or evil Msi Neo2!

well ive been having a few problems with my old trusty lol neo2 since i upgraded to dual core.. im thinking its psu, but hopefully someone will have a bit more info... right now im using enermax noisetaker 485w psu,

setup is

6800gt
neo2
opteron 165
1x dvdrom 1xdvdrw drives
2 raptors raid, and extra hd running ide
3 case fans, p180 case
xfi card
2x512 ocz 3200 rev.2

when i use Hardware sensor monitor it shows mainboard 13c, cpu1 42c, cpu2 33c

under voltage i have some concern... says Core +2.06V in Red, and Aux +3.31 V in red also.. what does this mean exactly.. could it be to much stress on psu?

any help would be great

Your PSU should be able to handle that ok.

Do you have the latest BIOS for your motherboard?

yeah im using mod bios latest version c, seems okay. but my cpu temp keeps going to 48degrees on idle.. in windows.. but in bios shows around 36c

Check your CPU useage to see if something is keeping it up around 100%. Sometimes windows is an ******* and likes to eat away the CPU resources because it doesn't feel like working properly. It's probably **** coincidence that you upgraded your PSU at the same time that windows dorks on you.

strange my cpu temps are down a bit.. now my Gpu temps are way up from average 52 before.. to 65c

i have no clue what could be causing this.. power supply? im about 5 minutes away from going out and buying a new dfi nf4 board and gpu

this neo2 gives me nightmares