Hi mastelmkd, click on this link; http://global.msi.com.tw/index.php?func=prodcpusupport&prod_no=499&maincat_no=1#menu This is MSI's link for supported CPU's for the 645E Max-U motherboard. Check you're bios version. You'll need ver 5.3 to run the Pentium 4 (Northwood, FSB533, L2 Cache 512KB), Pentium 4, 2.8GHz CPU. Or you can choose a lower CPU from the list. Suggest you add the link above to you're favorites.
Answers & Comments
Hi mastelmkd, click on this link;
http://global.msi.com.tw/index.php?func=prodcpusupport&prod_no=499&maincat_no=1#menu
This is MSI's link for supported CPU's for the 645E Max-U motherboard. Check you're bios version. You'll need ver 5.3 to run the Pentium 4 (Northwood, FSB533, L2 Cache 512KB), Pentium 4, 2.8GHz CPU. Or you can choose a lower CPU from the list. Suggest you add the link above to you're favorites.
Good luck mastelmkd!
Mike