Step 2 of modding has commenced:
As you can see for efficiency at regular loads only 3 MOSFETs have been included instead of the full 6.
As you can see efficiency starts to drop off as they get more heavily loaded, I think this is causing my cards to shut off when I push them up to 1450mhz at 1.175V on the core and 1500Mhz and 1.6v (I think) on the mem.
The card is currently being sent off for the chips to be soldered on properly, it should be interesting to test them when I get them back