I m running 19x200 atm. I m limited by stock intel cooling. I use (all values are written from inside vistax64) vcore:1.23v, vdimm:1.60v, vtt:1.28v. I run prime small ffts 2hours stable, prime blend 2 hours stable, memtest 2.11+ 2 full passes no errors. But as soon as i run LinX 64bit with full memory usage after exactly 25sec system freeze. I dont have any temp issues, using prime i max at 77-78C. Any suggestions on this?