After years of trying and failing miserably, I was finally able to get a decent OC out of my i5 750.
My XMP has given it a slight overlock from 2.67 to 3.04 GHz, which isn't much.
But Sunday I was able to get it to 3.8 GHz (200 x 19) after remaining determined after a few failures aiming for 3.6. Not sure if placebo, but it feels noticeably faster in Windows and BFBC2 seems a bit smoother. I'm pretty much at stock voltage and didn't even have to lower my RAM clocks as they're still at 1600 MHz and their recommended CL9 timings.
She be stable after 2 hours of BFBC2 and 30 mins of Prime 95 torture before I got bored and wanted to play more games. I'm on a custom water loop, so temps didn't go above 56 during prime 95 and are considerably lower during full "gaming" load.
I think I'll be able to easily hit 4 GHz by bumping the multiplier from 19 to 20.
I know 3.8 isn't really anything to write home about, but I'm happy to finally succeed where I've failed many times before