Successful installation on very old PC:
Gigabyte g41m-es2l
Pentium E6600
MSI GTX460 768Mb
4 RAM 2x2Gb
IDE 160 GB
UniBeast 6.1.1, install on 8Gb USB, MBR instead of GUID, works just as well.
Clover Legacy-root, CustoMac Essentials, Clover configurator, all according to instructions...