AMD Motherboards : Z170 Extreme4 not detecting HDD

Author: turok
Subject: Z170 Extreme4 not detecting HDD
Posted: 13 Aug 2019 at 10:51am

Added two new:
Seagate 14TB HDD Exos X14 7200 RPM 512e/4Kn SATA 6Gb/s 256MB Cache 3.5-Inch Enterprise Hard Drive (ST14000NM0018)

My system not detecting the new HDD's.
Does not show in File Explorer.
I flashed the BIOS.

i7-6700k
bios P7.50, 1/22/2018

any help I would be grateful

thx
ed