Intel® Server System S7000FC4UR TPS BIOS Role in Server Management
Revision 1.0
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Entering the user password allows the user to modify only the following:
BIOS Setup time
Date
Boot manager
User password menu items
Other Setup fields can be modified only if the administrator password is entered.
The administrator has control over all fields in BIOS Setup, including the ability to clear the user
password.
If the user or administrator enters an incorrect password, an incorrect password dialog box is
presented and the password must be re-entered. If an incorrect password is entered three times
in a row during the boot sequence, the system is placed into a halt state. A system reset is
required to exit out of the halt state. This feature makes it difficult to break the password by
guessing at it.
18.6.2 Password Clear Jumper
If the user and/or administrator password is lost or forgotten, both passwords may be cleared by
moving the main board Password Clear jumper into the clear/enabled position. The BIOS
determines if the Password Clear jumper is in the clear/enabled position during BIOS POST and
clears any passwords if required. The Password Clear jumper must be restored to its original
position before any new passwords stay set.
18.7 BMC Timestamp Synchronization
The BMC maintains a 4-byte internal timestamp clock used by the SEL and SDR subsystems.
This clock is read and set using the Get SEL Time and Set SEL Time commands, respectively.
The Get SDR Time command can also be used to read the timestamp clock. These commands
are specified in the Intelligent Platform Management Interface Specification, Version 2.0.
The BIOS programs the BMC with the current RTC time during POST via the Set SEL Time
command. The BIOS also sends a Timestamp Clock Sync System event immediately before
and immediately after the Set SEL Time command. The following table describes the event
format.
When the user changes the real-time clock (RTC) during operation, SMS is responsible for
keeping the BMC and system time in sync.
Table 82. Timestamp Clock Sync Format
Offset Value Description
1 03h Generator ID
2 04h Event Message Revision
3 12h System Event
4 83h Boot Event Sensor
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