I still think your problem lies with the removed 78X resistors. However i have bioshock installed, i will try to play it for at least an hour with 1.50v load & see how it goes.

When i return from NYE celebrations, i will get HL2EP2 and try it, beacause if it causes higher current draw than anything else, it would be a good test. Im sure many people would be interested in using it as a test if this is true. Maybe even nvidia are wrong, as afaik they repeat the nature scenes from 01 & 03 to determine max current draw. If there was something better i would have assumed they'd use it. Regardless, ill give it a go.

Have a good NYE im out till the 2nd