Late 2014 iMac: What to do with the old PCIE Card?

[Big Bone]

So I recently upgraded my Fusion Drive with a 2TB SSD and just left the old PCIe card in the logic board. I didn't see any sense in yanking it since I'd have to disassemble the whole iMac just to get to it. Anyways, it now shows up as an unmounted drive. My question is, can I just erase the drive, and will it then show up like an external HD that I can dump stuff on, or is it best just to ignore the thing?

 

[Fishrrman]

First, erase it with disk utility.

Now, test it.

What kind of read speeds do you get from it?

Next, test the newly-installed SSD.

What kind of read speeds do you get from that one?

 

[Nguyen Duc Hieu]

So I recently upgraded my Fusion Drive with a 2TB SSD and just left the old PCIe card in the logic board. I didn't see any sense in yanking it since I'd have to disassemble the whole iMac just to get to it. Anyways, it now shows up as an unmounted drive. My question is, can I just erase the drive, and will it then show up like an external HD that I can dump stuff on, or is it best just to ignore the thing?

View attachment 1908239

I would just leave it there, after a clean erasing.

 

[Fishrrman]

The reason for my post 2 above is that I'm wondering if the internal PCIe SSD (now that it's no longer a part of a fusion drive) may be somewhat speedier than the SATA SSD the OP installed...?