Pull it apart for spare parts like the power supplies, the fans and the water coolers, and throw the rest in the bin.
You might try selling the part's to. I had one C1 that was trouble and some blades just had issues. I made a decent amount more parting it all out, then I would have for 1/2 working gear.
So with old gear parting out is not a bad idea. I almost made off parts what my working one did, just took more time and effort.