When i turn on my computer everytime now in the bios screen, it shows the following message :

"Hardware Monitor found an error, Click F1 to continue F2 for setup utility details"

I've checked the voltage and everything, and the biggest difference in voltage is the +12V, (runs at) 11.5-.6 V.

My computer's motherboard is an Asus P4B-LX motherboard w/ Intel's 845 chipset...