I just got an NV silencer 5 rev. 2 and I'm sure I installed it correctly, but at 16x6 I just can't see to get it past the clocks in my sig. Had it a bit higher, got 7something thousand in 3DMark 03, lowered it down 5mhz core, 10mhz memory and got the score in my sig. From what I see people are getting GT speeds on their 6800's unlocked, but I can't get even close to that. I have the eVGA if that's of any service. I'm using Riva tuner to unlock the pipes and shader, and powerstrip to OC seeing as how Riva Tuner and coolbits won't let me go past a certain point without failing the tests. Any suggestions? Edit: I double checked, and the cooler was kinda moving a slight amount, so I checked the back, and lo and behold, I was able to tighten down more of the screws even further than before. Maybe now that its making better contact I can have some better luck.