my card is not a new revision of the lightning! it's the first released ;)
to hit 1100mhz i only add spacers in order to improve gpu contact!
Techpowerup reported this issue...
no pb to clock mine! all on air
my lightning only needs 1.174v to hit 1000/1350
and 1.299v to hit 1100/1350:
the only thing needed: spacers for perfect gpu contact with the heatsink
just a 120mm blowing over the vrm, that's all! & gpu fans @80%
otherwise nothing changed on my V1 blowers...those gigabyte & asus cards do not dissipate
much heat compared to my sapphire 5770 V1 which clocks higher & runs up to 68°C max ...
Not as good as V2 but no issue to clock my V1 cards in xfire on a JR P45 with 2 narrows pcie slots...
both@1010/1275 [email protected]: max temp for the upper card 58°C 54° for the lower:
http://img64.imageshack.us/img64/6767/22264copier.jpg
http://i209.photobucket.com/albums/bb261/pvhk/p14280.jpg