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PowerEdge R515 Technical Guide
3.12.4 TPM
The TPM is used to generate/store keys, protect/authenticate passwords, and create/store digital
certificates. TPM can also be used to store the Microsoft
®
BitLocker™ keys for hard drive encryption features
in Microsoft
®
Windows Server
®
2008. TPM is enabled through a BIOS option and uses HMAC-SHA1-160 for
binding. In China, the S-TPM (Socket TPM) is used.
3.12.5 Power Off Security
The control panel is designed such that the power switch cannot be accidentally activated. The lock on the
bezel secures the power button behind the bezel. In addition, there is a setting in the CMOS setup that
disables the power button function.
3.12.6 Intrusion Alert
A switch inside the chassis is used to detect chassis intrusion. When the system cover is opened, the switch
circuit closes to indicate intrusion. When enabled, the software can provide notification to the customer
that the cover has been opened.
3.12.7 Secure Mode
BIOS has the ability to enter a secure boot mode through Setup. This mode includes the option to lock out
the power and NMI switches on the Control Panel or to set up a system password.
3.13 USB Key
Dell does not offer USB keys for factory installation. The PowerEdge R515 supports two internal USB
connectors which can be used for USB keys.
3.14 Battery
A replaceable coin cell CR2032 3V battery is mounted on the planar to provide backup power for the Real-
Time Clock and CMOS RAM on the SP5100 chip.
3.15 Field Replaceable Units (FRU)
Parts available for field replacement include:
Backplane
CMOS battery
Expansion card
Front bezel
HDD
I/O panel
Memory
ODD
PDB
Power supply
Processor
Processor shroud
System board
System cover
System fan