Well, I have a Duron 600 and TBird 800, both with the L1's and L7's closed with a conductive pen. I re-did both sets of bridges on both CPU's and I still get them posting at lower speeds when oc'ing. Now, I have been yakning the power cord when it posts at a lower speed, then booting back up and it WILL post at the oc'd speed... every now and then. I have gotten the Duron up to 990 (9x110), pretty stable, and the TB to 1050 (10x105) pretty stable, but if I ever have to shutdown or reboot it turns into a crap shoot on whether or not it will come back up as 1050 or as 650. If it comes up as 650 I stop it from posting, turn the comp off, then boot back up. Sometimes it only takes once, sometimes it takes a few times, and sometimes it takes like 10 times before it will boot back as 1050.
Thos WinTune and SiSoft scores at 1050 are AWESOME!!!