Music server

That is very unfortunate.

Cary Audio MS1 uses some very simple, generic MoBo with integrated CPU. The only ’mods’ you could do is to replace the HDD with SSD, add some RAM and change the software.

Personally, I would install Linux on a new SSD drive and then I would use is as an end point for Roon.

That would ofc require Roon to be installed on some other computer connected to the same net - be it a loptop or your desktop.

You can also install Win 7/64-bit and use it with Jriver, although that would require a monitor connection (at least periodical). 

You need to install the OS first - Linux or Windows 7.

Then you can download the Jriver from their website. I believe it is free for 30 days. 

I problem I see with this solution is that you will need to hookup a monitor (at least from time to time), and that would require you to open your MS-1, as it only has USB outs routed to the rear panel. The monitor out is there too, but only inside the box. 

Windows/Jriver combo can be run headless (that is how my paretns use it). 

In combination with Jremote on an iPad, that will give you a much better user experience than your current Cary software. 

As an alternative, you may try to find another MS-1 user, and ask him to clone his HDD. 

That would require you to send him your new HDD, unless he could clone his HDD to ISO disc image, and send it over to you in digital form via WeTransfer or similar web based service. 

BTW - can you do sth for me ? Can you check what voltage does the MS-1 runs at ? Is that 12 or 19V ? It should be written on the PSU somwhere.