Hi bowman9991
32GB 4000MHz may be tough to hit, try setting it manually again.
1) AI Overclock Tuner - Manual
2) Dram Frequency - 4000MHz
3) Dram voltage 1.40v (up to 1.50v is safe)
4) CPU VCCIO voltage - 1.20v - 1.25v
5) CPU System Agent voltage - 1.20v - 1.25v
6) Go to Dram Timing Control - At the very top enter the primary timings:
19
19
39
Command Rate 2
7) F10 and Enter to save and Exit
If it still doesn't want to go, on the primary timings page try Maximus Tweak Modes 1 and 2.
Maximus Tweak Mode 1 - Helps with Compatibility
Maximus Tweak Mode 2 - Helps with Overclocking