Originally Posted by Gene
You can find the voltage specs on the first page of this thread in the article written by Richappy..
The blue wire is the motor RPM feedback input - no sense for voltage test.
OK, thanks, I read that, and I have over 13vdc at both red and yellow, so for now I am going to assume the motherboard is OK. My concern was that maybe the Blu/white needed 13vdc as well. I appreciate your help with this problem, thank you.