Registered DIMMs not running at 1333?

WAM2

macrumors 6502a
Original poster
Jan 6, 2011
869
472
United States
Maybe I'm not searching hard enough but I am unsure why my newly installed ram is not running at 1333mhz instead of 1066.

I have dual Xeon X5680's installed, and am flashed to a 5,1 on my 4,1 w/ ROM 138

Am I missing something here?

s-l1600.jpg Screen Shot 2018-10-09 at 8.02.01 PM.png Screen Shot 2018-10-09 at 8.02.04 PM.png
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.