How often are achievements updated? Seems like I have been top 20 for over a week but achievements not updating?

did you try to recalculate everything?

http://www.hwbot.org/profile/

 

if it doesn't work, it's pretty sure bugged. most of the achivements are on the "to fix" list tough.

"Recalculate everything" worked great, thanks!

Some achievements don't work as i can tell from my profile .

For example the LGA1366 ...

Most of them don't work, and haven't for a long time now.