My best stick of BH5 (Twinmos) does 243 2.5-2-2 @ 2.9v in my shuttle. Second is 236Mhz @ 2.9v. also ive got two that can only do 224Mhz on 2.9v .. not to good. Good enough for my gaming rig tho..

Even if your mobo is overvolting, 240 @ 2.95 is nice. Many BH5 needs 3.1+ to do that.