I measured 1.18v at both caps to the right of where 'C1277' is written on the PCB. I may be wrong though this might not be shader voltage.

Also I just bridged VID 10 (as well as having 1/2/3/4/11 bridged) and got no change in voltage. Then I removed VID 4 leaving 1/2/3/10/11 bridged and got 1.21v load and a BSOD at stock clocks. No idea what caused it but I'm removing VID 10 and hope stability returns.