Okay you are not going to believe this but the max temp for an amd thunderbird / duron is 90*c However you can expect it to not live long . Max recommended temp is 60*c . Your reference is here. http://www.icrontic.com/faqs/amd/AMD_FAQ/cooling.php Then again you can alway read it at AMD's page .Note Adobe acrobat is needed. http://www.amd.com/products/cpg/athlon/techdocs/pdf/23794.pdf Brendhan Horne -----BEGIN GEEK CODE BLOCK----- Version: 3.1 GE d- s: a C++ U(++) P(++) L+(++) E- W+ N+ o+ K- w+ O+ M V? PS+ Y PGP(++) t++ 5++ X- R+++ tv++ b+++ DI++ D G(++) e+(++) h-- r++ y* ------END GEEK CODE BLOCK------ Do you want to signoff PCBUILD or just change to Digest mode - visit our web site: http://freepctech.com/pcbuild.shtml