Lots of problems... Temps, Volts, etc.

I'm having problems with my mobo lately. Im not sure if it is the mobo, but the temps are really messed up and so are the voltages. I have a Asus A7N8X. The mobo temps read 185*C and the Vcore reads 2.53 when its 1.85. It also says the cpu fan is spinning at 912rpm when I have no cpu fan, cus I got watercooling. Whats possibly wrong. Thats in Sandra Max 3. In MBM5 the vcore reads 1.87 with seems right, but the 3 temp sensors read 29*c , 40*c , 129*C. Something is still wrong with the temps.

yeah on most boards they are way off. Should be fine but just to make sure use temp probe. You might get one at radio shack or fry's Electronics. Im most cases changing the BIOS helps out.