(adsbygoogle = window.adsbygoogle || []).push({}); i have a blinking yellow light sometimes solid on one of my dex ps3's ylod i guess but my ps3 cell temp is around 72-75 what to do?

This means that the thermal paste on the heat spreaders has dried up, you'll need to strip the PS3 and re-apply it. There's plenty of videos on youtube to support you.