My 3 year old WD Black 2 TB drives were replaced under warranty. The replacement drives are detected during POST after a cold start. But once Windows loads and if I subsequently restart the PC the drives do not show up in the BIOS. They power up OK and this has been verified…I can hear the platters spin. Drives were checked on 2 different machines.
I tried swapping power and data cables, the ports and even a PSU. Makes no difference. Motherboard is an Asus X79 Rampage IV Extreme running Windows 10 Pro X64.
I gave up and returned the 1st set of replacement drives and got another set today. The drives work perfectly, No bad sectors, pass the WD diagnostics quick SMART test.
But if I restart the PC the drives aren’t detected even if I wait for several minutes. What is the issue with the replacements?! Are they faulty? Is there a firmware update?