DG41BI Technical Product Specification

Technical Reference
21
Table 16 provides maximum case temperatures for the board components that are
sensitive to thermal changes. The operating temperature, current load, or operating
frequency could affect case temperatures. Maximum case temperatures are important
when considering proper airflow to cool the board.
Table 16. Thermal Considerations for Components
Component Maximum Case Temperature
Processor For processor case temperature, see processor datasheets and
processor specification updates
Intel 82G41 GMCH 102
o
C (under bias)
Intel 82801GB (ICH7) 108
o
C (under bias)
2.5 Reliability
The Mean Time Between Failures (MTBF) prediction is calculated using component and
subassembly random failure rates. The calculation is based on the Bellcore Reliability
Prediction Procedure, TR-NWT-000332, Issue 4, September 1991. The MTBF
prediction is used to estimate repair rates and spare parts requirements.
The MTBF data is calculated from predicted data at 55 ºC. Intel Desktop Board
DG41BI MTBF is 197,677 hours.
2.6 ACPI Wake-up Devices and Events
Table 17 lists the devices or specific events that can wake the computer from specific
states.
Table 17. Wake-up Devices and Events
These devices/events can wake up the computer… …from this state
LAN S3 and S4
PME# signal S3 and S4
Power switch S1, S3, S4, S5
RTC alarm S3 and S4
USB S3
WAKE# signal S3 and S4