Hi, my drive:
wdc WD40EFRX-68N32N0
is displaying:
Capacity: 0.00 GB
Smart Status: Not Available.

I hear the motor starts to spin when connected.

i tried it in with two cpus.

I need to restore at least 10 gb from those 4tb (used storage is 50 %).

Which methods, software do you recommend to start debugging?

Your ear.
Is the drive clicking? spin down?

More symptoms required.

it sounds like the head is buzzing finding something then stops, mhdd, victoria or other tools doesnt find anything, bios displays 0.0 gb size.
drive is on wd rma, would think about voiding the warranty to get the info or get a new disk

Exactly.. describe what the drive does exactly after powering on (for ex: power on, spins, clicks few times and spin down). We interested in sound behavior, not so much what capacity or model is reported by tools.

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Hard Disk Drive, SSD, USB Drive and RAID Data Recovery Specialist in Massachusetts