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Windows 7: SSD and HDD not compatible?

04 Mar 2011   #1

Windows 7 Ultimate 64bit
SSD and HDD not compatible?

Hi, I just upgraded my computer with a new OCZ 120GB SSD.
I wanted to connect my original HDD, two 500GB WD 7200rpm.
However, when I connect all three hard drives on my mobo, SSD does not appear on bios.
If I connect just the SSD, it shows up, and if I connect just HDD, it shows up as well.
However, I cannot find SSD from boot up priority menu if HDD is also connected.
There are only three choices: HDD, DVD Drive, and Floppy disk... which I do not have.
Is there a problem with compatibility? Or did I do anything wrong?
I didnt mess with any RAID or anything (I dont even know how to.)
Please help! Thank you

My System SpecsSystem Spec
04 Mar 2011   #2

Windows 7 Home Premium x64

You have to be sure that your BIOS sees the drives. If BIOS can't see them, Windows won't see them either.

Once that is done, make sure all your cables are securely attached.
That might seem obvious, but i messed with my brother's computer for nearly half an hour before checking the cables.
Doh! The data cable was uselessly dangling in there.
Amazingly, it worked fine once I hooked it up- ha!
My System SpecsSystem Spec
04 Mar 2011   #3
Ivan the SoSo

windows 10 pro 64 bit

Did you try installing one at a time...or if the drives are SATA maybe hot plugging while running....
My System SpecsSystem Spec

04 Mar 2011   #4

Windows 7 Pro x64 SP1

FWIW: Some bios setup screens only allow 2 hard disks to be shown in the boot sequence screen.
Have you been into the bios to determine which ones are listed.?

My System SpecsSystem Spec
04 Mar 2011   #5

Windows 7 Ultimate 64bit

thank you so much with replies! When I put both SSD and HDD together, bios can see all the drives, but cannot choose SSD for boot drive. It doesnt even show amon the list on boot drive priority menu..
My System SpecsSystem Spec

 SSD and HDD not compatible?

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