just bought ACF7PRO and the mfg edy applied a thermal paste at the bottom of it...
is it ok to use it or need to reapply another thermal paste??

walaaweii.. that pre-applied paste is already MX-1 unless u got another better thermal paste, then just use it la
i also used ACF64PRO before, and i never replace the paste (coz i never take out the hsf also)

sometimes tightening the HSF too strong can cause issues on the temp, do try good monitoring softwares. On the question of how many applications, on my part, i change every 500 hours of usage. Coz i run my pc server like...