WD Caviar Green 500Gb not recognized (randomly)

interzoid

Honorable
Jun 25, 2012
1
0
10,510
Hi,
I recently bought a SATA Caviar Green WD series WD5000AZRX-00A8LB0, to be used as additional storage on my workstation (not as a system disk). Upon install it was instantly recognized, but then started to act strangely: three times out of four it was not recognized in BIOS and in Win7.
I tried changing MB connectors, S-ATA and power cables but still the same behaviour: sometimes it's detected and sometimes it's not. I tried scanning it with WD storage tools, but no errors showed up; and when it's detected it seems to run just fine.
I have an older Caviar Green (1TB) on the same workstation, running just fine.
What could it be? Is it a faulty drive?
 
I would have to go with its a faulty drive or atleast a faulty connection between drive and sata somewhere.

Its the most likely culprit if its not even recognizing in the bios most the time.