Intel D845GVFN Product Specification - Page 61

Thermal Considerations

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Technical Reference 2.11.4 Power Supply Considerations CAUTION The +5 V standby line for the power supply must be capable of providing adequate +5 V standby current. Failure to do so can damage the power supply. The total amount of standby current required depends on the wake devices supported and manufacturing options. System integrators should refer to the power usage values listed in Table 37 when selecting a power supply for use with the Desktop Board D845GVFN. Additional power required will depend on configurations chosen by the integrator. The power supply must comply with the following recommendations found in the indicated sections of the ATX form factor specification. • The potential relation between 3.3 VDC and +5 VDC power rails (Section 4.2) • The current capability of the +5 VSB line (Section 4.2.1.2) • All timing parameters (Section 4.2.1.3) • All voltage tolerances (Section 4.2.2) For information about The ATX form factor specification Refer to Section 1.5, page 15 2.12 Thermal Considerations CAUTION The use of an Intel Pentium 4 processor operating above 2.80 GHz with this Intel desktop board requires the following: • A chassis with appropriate airflow to ensure proper cooling of the components on the board • A processor fan heatsink that meets the thermal performance targets for Pentium 4 processors operating above 2.80 GHz Failure to ensure appropriate airflow may result in reduced performance of both the processor and/or voltage regulator or, in some instances, damage to the desktop board. For a list of chassis that have been tested with Intel desktop boards please refer to the following website: http://developer.intel.com/design/motherbd/cooling.htm All responsibility for determining the adequacy of any thermal or system design remains solely with the reader. Intel makes no warranties or representations that merely following the instructions presented in this document will result in a system with adequate thermal performance. CAUTION Ensure that the ambient temperature does not exceed the desktop board's maximum operating temperature. Failure to do so could cause components to exceed their maximum case temperature and malfunction. For information about the maximum operating temperature, see the environmental specifications in Section 2.14. 61

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Technical Reference
61
2.11.4
Power Supply Considerations
CAUTION
The +5 V standby line for the power supply must be capable of providing adequate +5 V standby
current.
Failure to do so can damage the power supply.
The total amount of standby current
required depends on the wake devices supported and manufacturing options.
System integrators should refer to the power usage values listed in Table 37 when selecting a power
supply for use with the Desktop Board D845GVFN.
Additional power required will depend on configurations chosen by the integrator.
The power supply must comply with the following recommendations found in the indicated
sections of the ATX form factor specification.
•
The potential relation between 3.3 VDC and +5 VDC power rails (Section 4.2)
•
The current capability of the +5 VSB line (Section 4.2.1.2)
•
All timing parameters (Section 4.2.1.3)
•
All voltage tolerances (Section 4.2.2)
For information about
Refer to
The ATX form factor specification
Section 1.5, page 15
2.12 Thermal Considerations
CAUTION
The use of an Intel Pentium 4 processor operating above 2.80 GHz with this Intel desktop board
requires the following:
•
A chassis with appropriate airflow to ensure proper cooling of the components on the board
•
A processor fan heatsink that meets the thermal performance targets for Pentium 4 processors
operating above 2.80 GHz
Failure to ensure appropriate airflow may result in reduced performance of both the processor
and/or voltage regulator or, in some instances, damage to the desktop board.
For a list of chassis
that have been tested with Intel desktop boards please refer to the following website:
All responsibility for determining the adequacy of any thermal or system design remains solely with
the reader.
Intel makes no warranties or representations that merely following the instructions
presented in this document will result in a system with adequate thermal performance.
CAUTION
Ensure that the ambient temperature does not exceed the desktop board’s maximum operating
temperature.
Failure to do so could cause components to exceed their maximum case temperature
and malfunction.
For information about the maximum operating temperature, see the
environmental specifications in Section 2.14.