The ipv7.net site is an old mirror of the Ardent Tool. Louis keeps the most up to date version on Kevin Bowling's server at
http://ps-2.kev009.com/ohlandl/There are four different types of processor complexes used in the PS/2 95 and each uses a specific Reference Disk. The complexes can be identified on this page
as well as the Reference/Diag Disks download files:
http://ps-2.kev009.com/ohlandl/complexes/Complex_ID.htmlMake sure to replace the CR2032 CMOS battery as low voltage has been known to cause erroneous memory errors and other hardware oddities
on PS/2 90/95 machines.
The comp.sys.ibm.ps2.hardware Usenet newsgroup is still up and running after all these years and always a good place for IBM PS/2 related information and
questions.