Same thing with my G61R. Processor would work for a short while and then reboot itself, sometimes the relays would click away for a while before stopping. Upped the 5v pot to 5.2v and I'm back in business. Ordered a replacement PSU from Farnell and will fit that tomorrow.

Big thanks to Chris JC for helping me out last night smile

Chris
Srces: Wiim Pro | OSMC Vero 4K+
Procs: HD621 > G61R > Minidsp DDRC-88D
Spkrs: 7200.2 + 5KC + 5Ks | iNuke6K > USC15 | iNuke3K > 2 x Crowson T108SS
Video: JVC HD950 & 1.9m React3 2.4:1 screen
Room: 5.8x2.8m | Various GIK Panels