It's not necessary. Nate started the system install Sunday afternoon. The Thermalright Ultra 120 Extreme Revision A HSF clears the chassis.
250mm fan draws out the warm air from the Ultra 120 Extreme Revision A
Thermalright has since updated the mounting bracket to turn the HSF 90 degrees and avoid blocking DDR in first two slots
We'll be using these new PC Cable management clamps
PC Cable Clamps
Nate from CustomPCMax.com