Dell Dimension XPS D Series Reference And Troubleshooting Manual page 165

&OHDULQJ195$0
To clear NVRAM for all devices and restart the system, follow these steps:
 (QWHUWKHV\VWHPVHWXSSURJUDPDVGHVFULEHGDWWKHEHJLQQLQJRIWKLV
DSSHQGL[
 3UHVVWKHULJKWDUURZNH\WRPRYHWRWKH$GYDQFHGPHQX
 3UHVVWKHGRZQDUURZNH\WRKLJKOLJKW5HVHW&RQILJXUDWLRQ'DWD7KHQ
SUHVVWKHSOXV  NH\WRFKDQJHWKHVHWWLQJWR<HV UHIHUWR7DEOH% 
 3UHVV )!WRH[LWWKHSURJUDPDQGUHERRWWKHV\VWHP
System Setup Program B-23