I just installed a set of Extended fins for my GT's. The fins came packaged with cardboard touching the thermal pads so they stick to the cardboard and are pretty much ruined so I used the stock fins pads. Idle they are all around ~30c where the stickers are on the dimms and I haven't test load on them yet. It looks cooler but I would try anything to get rid of those noisy cooling fans.

Too bad they are $100 more than what I payed for them almost a year ago as more people should check out this ram.