Currently, CentOS 7 is not showing under the tested operative systems for this board, bear in mind that Intel always recommend to use validated Operative System. However I've tried in our lab environment and it works in enhanced mode, If you are using a raid controller please provide us more information on the setup.
To install it with a USB just make a bootable flash drive since the installation process is the same as like any other operative system.
You will find the list of validated systems in the following link:
I have not received the server yet, but, specs are reffering to those below:
[Line Item# 1] Wildcat Pass 2U 8x3.5" HDD 10Gbe Xeon DP v3 Server
KNOCK DOWN KIT
KDK - Wildcat Pass 2U 8x3.5in 2x10Gbe 1x1100W 2xHS Intel R2308WTTYS
Xeon DP Haswell-EP E5-2699 v3 LGA2011 2.3GHz 45MB 145W 18 cores CM8064401739300
16GB 2133 Reg ECC 1.2V DDR4 Kingston KVR21R15D4/16 Dual Rank
ATA HARD DRIVE
4TB HDD 3.5in SATA 7200RPM 128MB Seagate Constellation ES.3 ST4000NM0033</s...