WARNING: This question arose from a buggy test software. After its fixing, the time required to copy a file, large 3.5 Gb, is best estimate between 45 and 60 sec, on heavy load. I'm sorry for disturbing you.
I have just assembled my new PC and I'm observing troubles with its five brand new hard disks. They are all extremely slow: it takes more than a minute to complete a command like
copy d:\file1 d:\file2
where file is 1.5 Mb large. HD are completely void, tested both just a minute and dozens of hours after boot completion and while no other program is running.
I have read Hard disk suddenly extremely slow, but it seems unlikely that all my disks are defective and DOA.
I have no idea of the possible reason; can you please provide any advice?
Please, see the screenshots below.
Mother board: omissis (supports SATA III)
Hard disks: omissis
Western Digital Data Lifeguard diagnostics short test: each passed after a few minutes
Western Digital Data Lifeguard diagnostics long test: each passed after 6 hours
Krystal Disk Info 7.9.3 x64 report: all healthy
OS: Windows 10.0.14393 booted from Hiren’s BootCD PE (Preinstallation Environment)
metal scratching sound: none
data partition: GPT
File system: NTFS