IBM System x3650 M3 4255 Service Manual page 37

Table 3. System board switch block 3, switches 1 - 4
Switch
number Default value
1 Off
2 Off
3 Off
4 Off
Table 4. System board switch block 4, switches 1 - 4
Switch
number Default value
1 Off
2 Off
3 Off
4 Off
Notes:
1. Before you change any switch settings or move any jumpers, turn off the server;
2. Any system-board switch or jumper blocks that are not shown in the illustrations
Switch description
Clear CMOS memory. When this switch is toggled to On, it clears the data in
CMOS memory.
Trusted Platform Module (TPM) physical presence. Turning this switch to the on
position indicates a physical presence to the TPM.
Reserved.
Reserved.
Switch description
Power-on password override. Changing the position of this switch bypasses the
power-on password check the next time the server is turned on and starts the
Setup utility so that you can change or delete the power-on password. You do not
have to move the switch back to the default position after the password is
overridden.
Changing the position of this switch does not affect the administrator password
check if an administrator password is set.
See "Passwords" on page 259 for additional information about the power-on
password.
Power-on override. When this switch is toggled to On and then to Off, you force a
power-on which overrides the power-on and power-off button on the server and
they become nonfunctional.
Forced power permission overrides the IMM power-on checking process. (Trained
service technician only)
Reserved.
then, disconnect all power cords and external cables. (Review the information in
"Safety" on page vii, "Installation guidelines" on page 169, and "Handling
static-sensitive devices" on page 171.)
in this document are reserved.
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Chapter 2. Introduction