I recently installed an OCZ Vertex 4 128gb SSD as a boot drive and it works without issue. However, the two HDDs that I use for storage are now disappearing from windows randomly. One is a SG 2TB 7200RPM 64MB cache, and the other is a WD 1TB black. Sometimes one will disappear, sometimes the other, and sometimes both. It's not consistently one or the other. The SSD has not ever disappeared.
As far as I know, none of the drives have disappeared from BIOS, only Windows 7. If I go into Disk Management the HDDs don't appear until I scan for hardware changes after which windows finds the missing HDDs again. The HDDs also reappear after a restart.
I really have no idea what's happening with this and would love any solution to this problem.
System Specs: Windows 7 MOBO: Intel B75 CPU: i7-3770K Graphics: Radeon HD 7750 2GB RAM: 16GB DDR3 1333 Power: 700W Storage: 128GB SDD, 1TB WD Black, 2TB SG 7200rpm
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Try to update the MB drivers like the intel chipset diver, AHCI driver.