Hi. I've read the posts on this topic, and mine shares elements but differs. I have had a new machine built for me with an ASUS mother board and running Windows 7 Professional 64-bit. My previous one had Windows XP Professional and the adjustment has not been easy.
Using "My Computer/Computer Management/Storage/Disk Management"; the following always shows up:
Disk 0 Internal Main Drive C: 2TB with Windows 7 Professional
Disk 1 internal SATA slave drive E: 150GB (ex Dell machine HDD, partition removed and reformatted)
Disk 2 internal SATA slave drive F: 185GB (ex Sony machine HDD, partition removed and reformatted)
Disk 3 external USB back-up drive G: 2TB Western Digital My Book 1130
I have always been in the habit of shutting down my machine when it is not in use. This is primarily because I live in the country, and power bumps are quite common. I believe this is what killed my last machine.
Whenever I start the machine, Disks 1,2,3 always show up in Computer Management , but not always in Windows Explorer. I am usually missing at list one, and often two of the drives. It seems to change randomly. I re-start, and get a different configuration. About one in ten start-ups, all drives appear, and function normally.
I will try switching SATA drive cables. One poster suggested that the main drive needs to be either disk 1 or disk 2, and slave drives should be disk 3 & disk 4.
Anyone have any other thoughts?
PS I don't have my new machine specifics handy since I am wiorking from another machine. I'll update that tonight.
Thanks in advance....