That means the RAM will not run at 3600 using DOCP. So you will need to clear the CMOS like this: Unplug the PC (PSU). Then press the Power Button for at least 30 seconds. Use a flat headed screwdriver to short the CLR CMOS (CLRTC) Jumper (Touch both jumper pins with the screwdriver) for at least 15 seconds. CLRTC jumper location can be seen on page 1-2 here: https://dlcdnets.asus.com/pub/ASUS/mb/SocketAM4/ROG_STRIX_B450_F_GAMING/E14401_ROG_STRIX_B450-F_GAMING_UM_WEB.pdf Plug the PC back in. Press the Power Button to turn the PC on. Repeatedly tap the DEL key A screen should come up telling you to press the F1 key, do that. Set the Optimized Default settings and Press OK (this is on the EXIT tab) Save and exit the BIOS. Tap the DEL key again to enter the BIOS and change any settings you want changed then save and exit again. Once it boots properly again try setting the DOCP profile BUT then set the DRAM Frequency to 2933 and see if that boots. If it does then set the DRAM Frequency to 3200 and see if that boots. Then try 3400, then 3466 and use whatever speed is highest and also boots. Answer from DMAN999 on forums.tomshardware.com