Dell POWEREDGE M915 - Manual (Page 334)

334 System Board Information
PowerEdge M710 Jumper Settings
Figure 7-5 shows the location of the configuration jumpers on the blade
system board. Table 7-5 lists the jumper settings.
NOTE: Figure 7-5 is oriented with the front end of the blade system board facing to
the right.
Table 7-5. PowerEdge M710 Jumper Settings
PWRD_EN (default) The password feature is enabled. (Pins 2-3)
The password feature is disabled. (Pins 1-2)
NVRAM_CLR (default) The configuration settings are retained at
system boot. (Pins 4-5)
The configuration settings are cleared at the
next system boot. (Pins 5-6)
(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.)