dear mugkifa ,
NMI ISSUED PRESS ESC TO TURN OFF NMI IN IBM SERVER
the above error indicates , a non maskable interrupt occurred in your server , there may be a change of malfunction of a hardware ,like add on cards
one more solution in ibm server is disablig the NMI interrupt by using jumper settings (inside motherboard)
see the below mentioned details , may differ with your server series please refer with series on
http://www-947.ibm.com/support/entry/portal/docdisplay?brandind=5000008&lndocid=MIGR-5069937
System-board jumpers
The following illustration shows the switches and jumpers on the system board:
Note: Any jumper blocks on the system board that are not shown in the illustration are reserved. The following table describes the function of each jumper block:
Jumper
Settings
CMOS jumper (JP3)
Pins 1 and 2: Keep CMOS data (default)
Pins 2 and 3: Clear the CMOS data, which clears the power-on password and administrator password
Boot block jumper (JP4)
Pins 1 and 2: Normal (default)
Pins 2 and 3: Recover boot block
NMI (non-maskable interrupt) switch (SW1)
Normal (default): No NMI issued
The NMI button that is on the rear of server, connected to this switch, has been pressed: NMI issued