Originally Posted by jamenta
Most reviews I have read overclocking the 4000 have it stable around 2.7 as well. That's fine. In retrospect, I may have gone for the 3700 to save a little money but at the time newegg had a sale on the 4000 for $135 and free shipping. You have a hard time finding the 4000 now.
i have heard someone on here get a SD 4000 to 2.9 (well, two actually) with Water and DFI's, and i did read someone who had their kids rig running one at 3.1 stable on air, but i can't remember who they were or else i'd PM them asking them how!