Intel Desktop Board DQ45CB Technical Product Specification
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1.14 Intel
®
Trusted Platform Module (Intel
®
TPM)
The Intel
®
Trusted Platform module (Intel
®
TPM) 1.2 component is specifically
designed to enhance platform security above-and-beyond the capabilities of today’s
software by providing a protected space for key operations and other security critical
tasks. Using both hardware and software, the Intel TPM protects encryption and
signature keys at their most vulnerable stages—operations when the keys are being
used unencrypted in plain-text form. The Intel TPM is specifically designed to shield
unencrypted keys and platform authentication information from software-based
attacks.
The Intel TPM 1.2 module on this board has been integrated into the Intel
®
82801JDO
Controller Hub (ICH10DO).
NOTE
The Intel TPM uses the coin cell battery to maintain its monotonic counters. One major
function of the monotonic counters is for anti-replay protection of the internal Intel
TPM data. If the battery is removed or exhausted, the Intel TPM data will be deleted in
accordance to Trusted Computing Group guidelines. Please read the user guide and
back-up Intel TPM keys and data before removing the coin battery.
1.15 Hardware Management Subsystem
The hardware management features enable the board to be compatible with the Wired
for Management (WfM) specification. The board has several hardware management
features, including the following:
• Fan monitoring and control
• Thermal and voltage monitoring
• Chassis intrusion detection
1.15.1 Hardware Monitoring and Fan Control
The features of the hardware monitoring and fan control include:
• Intel Quiet System Technology, delivering acoustically-optimized thermal
management
• Fan speed control controllers and sensors integrated into the ICH10DO
• Remote thermal diode sensor for ambient temperature sensing
• Thermal sensors in the processor, 82Q45 GMCH, and 82801JDO ICH10DO
• Power supply monitoring of five voltages (+5 V, +12 V, +3.3 V, +1.125 V, and
+VCCP) to detect levels above or below acceptable values
• Thermally monitored closed-loop fan control, for all three fans, that can adjust the
fan speed according to thermal conditions
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