Quote Originally Posted by [XC] Jaco View Post
Installed my Thermalright HR01-X coolers (thanks jcool) today on the Asus Z7S.

Now the system won't boot
Diagnostic card says F.F. (with dots)

F.F. stands for double-f'd...

I had this before I bought my EPS power supply so it could be related to a miss-configured or poorly connected power cable, but also I figured out I had my memory in the wrong slots! Try taking out all your memory and see if you get a different status code, if you do, put just one module in nearest the northbridge, that worked for me and it was then I figured I was populating the memory slots from left to right, and it should be from right to left!

Regards

Andrew