KP915GV Product Manual
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2.11 I/O
• Four USB 2.0 ports on I/O panel via two dual stacked USB over RJ45 connectors
• Four USB 2.0 ports on internal locking headers
• Available with IEEE 1394b controller with support for 1394a
• Single port via a header connector
• Based on Texas Instruments TSB82AA2 controller and TSB81BA3 transceiver
2.12 Power Management
• Supports ACPI 2.0 with power states S0, S3, S4 (not S4BIOS), S5 and C0, C1, C2, C3
• Supports PCI PME and PCI Express power management event signaling
Table 3. ACPI Power States
G0/S0/C0 Full on
G0/S0/C1 Processor is halted
G0/S0/C2 Processor stops internal clocks
G0/S0/C3 Processor clocks are disabled and processor in sleep state
G1/S3 System context is saved to RAM and power removed from all circuits
except that required to maintain system RAM and resume
G1/S4 System context is saved to disk and power removed from all circuits
except that required to resume
G2/S5 Soft off, only resume logic and RTC remain powered
2.13 System management
• System monitoring of voltage, temperature, fans
• Temperature monitoring of processor die, board and remote sensor
• Direct monitoring of lithium cell voltage
• Automatic fan control for 3 fans - CPU, System 1, System 2
• Fan configuration held in BIOS customization block
• Fans can be assigned to any of three thermal zones for automatic control - each zone
• monitored by one of the three thermal sensors
• 450mA drive capability for each system fan, 2.2A for the CPU fan
• Anti-tamper security (trigger for chassis intrusion detect)
• Programmable watchdog timer with range of 1 second to 1 hour
• Access to SMBus via 4-pin 2mm header
2.14 Security
• Header for Trusted Platform Module (TPM)
• TCG 1.1 compliant
