Windows 7 won't see second disk...?

A

A.C. Fairbanks

Geek Trainee
Howdy,

I'm running Windows 7-64 on a Dell Optiplex.

When I try to install a second hard disk, the BIOS sees it, but nothing in windows can see it. It does not appear in Device Manager, in Disk Management, or in Computer.

I then discovered that in the BIOS, SATA was configured to RAID (even though, at that point I had only one disk installed.) I was told to set the SATA configurtion to ATA to allow Windows to see the second disk.

But, when I set the SATA configuration to ATA, the system would not boot, and Windows Repair failed...

So, if I set the SATA configuration to RAID, the system boots, but Windows can't see the second disk, and if I set the SATA configuration to ATA (as I was told by Dell "Support" folks would allow Windows to see the second disk) the system will not boot.

Might you suggest ways I can get off this merry-go-round?

Many thanks,

A.C.
 
Well what is the hard drive you are trying to use ? Is it a sata or IDE ? do you have the second drive set at Master or slave ?
 
Hi,

Both my boot disk, and the disk I am trying to add are SATA. The drive I am trying to add is set to slave.

Thanks for any further help,

A.C.
 
check you boot order in the Bios, Does it show under the Bio's... Could try changing the boot order to the new drive to boot first.
 
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