Bird on Ubuntu on a dell server.

Hi, I will have two dell servers with Bird connected by iBGP and VRRP (two peer sessions, full tables). Questions: 1. Does it matter whether the BIOS is UEFI or legacy? 2. The server have 1 CPU 4 core 8 th (1.6 GHz with power saving) and 16 GB of RAM (800 MHz with power saving). The question is whether it is possible to set all parameters in BIOS to save power, such as? CPU Power Management: minimal power Memory Frequency: Minimum (800 MHz) Turbo Boost: Disabled C States: Enabled C1E: Enabled Fan: minimal power Or is this too aggressive and may cause instability? What are your experiences? Kind regards, Mike