Dell poweredge R230 loud without perc card.

Hello, I have a Dell R230 that I use as a firewall/router. The problem is, that I want to remove the raid card since I do not need it, and replace it with a PCIe to nvme adapter. However, when I remove the raid card, the system will ramp up the fans to 100% and a temperature and diagnostic LEDs will start blinking in the front. Is there any way around this ?