Chassis Intrusion; Power Management Features; Acpi; Power Connectors - Intel D915GMH Product Manual
Desktop board; balanced technology extended (btx) form factor board
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Also See for D915GMH:
- Technical product specification (100 pages) ,
- Specification (12 pages) ,
- Product manual (78 pages)
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Intel Desktop Board D915GMH Product Guide
Chassis Intrusion
The board supports a chassis security feature that detects if the chassis cover has been removed.
The security feature uses a mechanical switch on the chassis that can be connected to the chassis
intrusion header on the desktop board. See Figure 19 on page 42 for the location of the chassis
intrusion header.
Power Management Features
Power management is implemented at several levels, including:
•
Advanced Configuration and Power Interface (ACPI)
•
Hardware support:
Power connectors
Fan connectors
Suspend to RAM (Instantly Available PC technology)
Wake from USB
Wake from PS/2 keyboard/mouse
PME# wakeup support
ACPI
ACPI gives the operating system direct control over the power management and Plug and Play
functions of a computer. The use of ACPI with the desktop board requires an operating system that
provides full ACPI support.
Power Connectors
The desktop board has three power connectors. See Figure 22 on page 47 and Figure 23 on page 48
for the location of the power connectors.
Fan Connectors
The desktop board has a 4-pin processor fan header and two 3-pin chassis fan headers. See Figure
21 on page 46 for the location of the fan headers.
Fan Speed Control (Intel ® Precision Cooling Technology)
Intel Precision Cooling Technology automatically adjusts the processor fan speed based on the
processor thermal diode temperature and adjusts the chassis fan speeds depending on the system
temperature. System fan noise may be reduced by operating controlled chassis and processor fans
at the minimum necessary speeds.
NOTE
Not all chassis fan headers on desktop board D915GMH are controlled. Refer to Table 3 on
page 13 to identify controlled chassis fan headers.
The processor and chassis fan speed control features can be disabled independently through the
desktop board BIOS. Disabling the processor fan speed control will result in the fan operating at
20
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