I like Techtool, myself. http://www.micromat.com/techtoolpro It has test suites for Memory, CPU, video and hardrives. Also file and directory structures on the hard drives. You can also build an emergency bootable DVD for recovery if you can't boot from your hard drives. On Sun, Apr 14, 2013 at 3:23 PM, cat <catsoul at thinkplan.org> wrote: > thank you, Jon..what software would test RAM? > > cat > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://listserver.themacintoshguy.com/pipermail/x4u/attachments/20130414/f0e1ff83/attachment.htm>