System Maintenance Switches; Dimm Slots - H3C SecCenter CSAP-SA Installation Manual

System maintenance switches

Use the system maintenance switches if you forget HDM username, HDM password, or BIOS
password, or need to restore default BIOS settings, as described in
the switches on the system board, see
Table 5 System maintenance switches
Item
System
maintenance
switch 1
System
maintenance
switch 2
System
maintenance
switch 3

DIMM slots

The server provides 4 DIMM channels per processor, 12 channels in total. Each channel contains
one white-coded slot, one black-coded slot, and one blue-coded slot.
Figure 7 shows the physical layout of the DIMM slots on the system board. For more information
about the DIMM slot population rules, see the guidelines in "Installing DIMMs."
Figure 7 DIMM physical layout
Description
•
Pins 1-2 jumped (default)—HDM login
requires the username and password of a
valid HDM user account.
•
Pins 2-3 jumped—HDM login requires the
default username and password.
•
Pins 1-2 jumped (default)—Normal
server startup.
•
Pins 2-3 jumped—Clears all passwords
from the BIOS at server startup.
•
Pins 1-2 jumped (default)—Normal
server startup.
•
Pins 2-3 jumped—Restores the default
BIOS settings.
"System board components."
7
Table 5. To identify the location of
Remarks
For security purposes, jump pins 1 and 2
after you complete tasks with the default
username and password as a best
practice.
To clear all passwords from the BIOS,
jump pins 2 and 3 and then start the
server. All the passwords will be cleared
from the BIOS. Before the next server
startup, jump pins 1 and 2 to perform a
normal server startup.
To restore the default BIOS settings,
jump pins 2 and 3 for over 30 seconds
and then jump pins 1 and 2 for normal
server startup.