I just put in a new psu, an ENERMAX Whisper II EG465P-VE FMA 460watt psu, and now the temp on my motherboard went from 40*C at idle to 55*C at idle(asus motherboard with asus probe). I also replaced the optical drive IDE and Floppy ribbon cables with the round versions, and lined all the cables from the psu with convoluted tubing. Also I think its worth noting, that the cpu temp went from 30*-32*C at idle to 26*-27*C at idle after installing the psu (dual fans), so it just seems to be the motherboard that is showing an increase in temp, I thought maybe the Asus Probe software was malfunctioning, but the hardware monitor in the bios displayed the same temps. So what could have cause such an increase like this? Everything seems to be working properly.