Post originale di: oldturkey03 ,
Trent, of course you made sure that you have the right fan. You also have to make sure that your heatsink on the processor is making proper contact. you also used really good thermal paste. If none of that resolved your issue, I would think that you have an error with your mother board. You can download the manual [http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-46464|from here] Page 64 gives you the error and where to look for. If you are really adventurous you can download the position of all the fuses on your mother board from [http://www.keepandshare.com/doc/3006023/thinkpad-t40x-fuses-pdf-july-25-2011-8-17-pm-3-0-meg?da=y|my fileserver.] Good Luck and I hope it'll work out.