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Solved!

Hybrid storage?

HP Recommended
EliteBook 850 G3
Microsoft Windows 10 (64-bit)

Hello,

 

I got a used HP laptop and I opened up the back and I see what looks like a M.2 drive and a 2.5" drive....

I tried to just use the M.2  drive by unplugging the 2.5" drive, but the system won't recognize any drive.

The M.2 drive is 256 GB

 

The system had a 500 GB mechanical HD... So I replaced it with a 128 GB SSD.... And it's only showing 128 GB....      Can I just use the M.2 Drive?

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It's used. It's possible the M.2 SSD is bad. Here is the Service Manual:

 

Manual 

 

Have you run diagnostics on the M.2 SSD?


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Thanks for the reply...  yeah maybe the M.2 SSD is bad....     I don't even see the M.2 in the BIOS, so I can't test it...  I'll see if it shows up on Linux,.... 

 

Is there is a setting that forces the M.2 as a cache for the 2.5" drive.... and can I change that setting?

 

If not, I'm guessing the M.2 drive is dead...

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That is called Optane and yours does not support it. If it were an Optane setup the M.2 would be 32 gigs or less capacity. 


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Thanks, yeah I thought 256GB was a big cache...

Ok I tried a m.2 nvme drive from another computer and it worked!

So I guess that old drive is dead.  Thanks for your help!

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