Monitoring voltage seems to mix up +3.3V and +12V lines

[lefthandlost]

I have just built the following system

i5 6600K
ASUS Maximum VIII Ranger
2*4GB 2666MHz DDR RAM
Noctua NH-D14
MX200 500GB
GTX 970
DVD-RW optical drive
EVGA 750W P2

When I boot up windows I get the warning messages that the +3.3V line has 12 volts and the +12V line has 3.3V. I have also checked asus ai suite and get the same findings.

However when looking at the bios it correctly lists the +3.3V line as being around 3.321V and the +12V line as being 12V.

I have checked all the lines going in and out of my PSU and it looks like I have not done anything really stupid.

Also I have updated the latest bios.

Any ideas what is going on here?

 

[lefthandlost]

Thankfully this was nothing wrong with hardware or my building technique. I updated my asus AI suite and no more problems. It seems that AI suite has a long history of incorrect warnings