is a good memory tester which is based on memtest86 v3.0, and provides an up-to-date version of this useful tool, which aims to be as reliable as the original.
UBCD Ultimate Boot CD
allows users to run floppy-based diagnostic tools from most CDROM drives on Intel-compatible machines, no operating system required. The CD includes many diagnostic utilities.
is a Linux system on a bootable CD-ROM for repairing your system and recovering your data after a crash. It aims to provide an easy way to carry out admin tasks on your computer, such as creating and editing the partitions of the hard disk. It contains a lot of system utilities (parted, partimage, fstools, ...) and basic tools (editors, midnight commander, network tools). Look at the Online-Manual.
Just a few links from Tools, Recovery, Diagnostic, Emergency
section of 'Slackware-Links'. More than just SlackwareŽ links!