Dell PowerEdge M610 - Manual (Page 337)

System Board Information 337
PowerEdge M600 Jumper Settings
Figure 7-13 shows the location of the configuration jumpers on the blade
system board. Table 7-8 lists the jumper settings.
NOTE: Figure 7-13 is oriented with the front end of the blade system board facing to
the right.
Table 7-8. PowerEdge M600 Jumper Settings
PWRD_EN (default) The password feature is enabled. (Pins 1-2)
The password feature is disabled. (Pins 2-3)
NVRAM_CLR (default) The configuration settings are retained at
system boot (Pins 2-3)
The configuration settings are cleared at the
next system boot. (Pins 1-2) (If the
configuration settings become corrupted to the
point where the system does not boot, install
the jumper and boot the system. Remove the
jumper before restoring the configuration
information.)