There are 3 flavors of S26 systems:
  3426-75xx = S26 P5 systems 
  3426-76xx = S26XL P6 (PPro) systems 
  3426-8xxx = S26 PII systems 
The temperature patch was intended for only early S26 P6 systems
(3426-76xx) that have NCR Server Manager 4.2 or 5.0 installed.
S26 P6 shipped in 1H97 with NCR SM should increase the temperature limit.
Systems with Server Manager 5.1 and beyond can modify the temperature
limits from the Server Manager menus.

This patch is needed for some earlier S26 units that recorded
occasional temperatures between 75C and 80C.  For these units, Server
Manager would generate temperature alerts and shut down the 
systems.  The S26 units are certified at up to 80C.  Later units
do not experience temperatures above than 75C.  

S26TEMPW.EXE - utility to increase the warning temperature from
               55C to 60C for warning message actions.
               This utility runs with SM 4.2 and 5.0.
S26TEMPC.EXE - utility to increase the critical temperature from
               75C to 80C for shutdown actions.
               This utility only runs with SM 4.2.

>>>>>The s26tempw.exe utility displays the following text when executed:
*****************************************************************
NCR S26 CPU Warning Temperature Patch
*****************************************************************

This Patch will change the current CPU Warning Temperature
by 5 degrees Celsius.

Each execution of this program will toggle the CPU Warning
temperature between the original temperature, 55C, and the Patch
temperature, 60C.

The Current CPU Warning Temperature is 55C, the orginal temperature.

Please select one of the following options:

        1) Change the CPU Warning Temperature of 55C to 60C.
        2) Exit the program.

Enter choice (1-2):

>>>>>The s26tempc.exe utility displays the following text when executed:
*****************************************************************
NCR S26 Temperature Patch
*****************************************************************
This Patch will increase the current CPU Critical Temperature
by 5 degrees Celsius. If this executable has already been run on your
system, it will return the temperature to the original value.
The Current CPU Critical Temperature is 75C, the original temperature.
If you would like to continue enter Y. Otherwise enter 'N' to exit.
Please enter 'Y' or 'N':