Getting an external USB hard drive to work (encrypted) - not boot drive

[phrozenpenguin]

My first hackintosh here and having an issue trying to copy data from an external USB hard drive. I am starting to suspect it may be because the drive is encrypted, but I couldn't find other notes on this scenario.

External USB hard drive, GUID, Mac OS Extended (Journaled, Encrypted). When I plug it in (USB3) I am prompted for password, then entering password mounts the disc as expected. I can browse contents, copy contents etc. All looks good, EXCEPT the drive "ejects" after ~5 minutes.

This is incredibly frustrating given I am trying to copy TBs of data from it. I have used a different, unencrypted drive, on the same port, same cable, same OS etc and had no issues. I have tried the encrypted (problem) drive on a genuine Mac and have no issues.

Any thoughts or advice? If this isn't going to work I will have to try something else, but if others have this working I'm hoping to as well.

 

[BreBo]

@phrozenpenguin, please update your profile (personal details) with your build (Motherboard or Model, CPU and Graphics Card).

Profiles need to contain at least your primary system to assist others with helping you.

 

[phrozenpenguin]

@phrozenpenguin, please update your profile (personal details) with your build (Motherboard or Model, CPU and Graphics Card).

Whoops, I have now updated my profile. I'm running an HP 8300 pretty much as stock - so don't have an exact motherboard model.