Intel D845HV Product Specification - Page 81

Thermal Considerations

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Technical Reference 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 18 2.12 Thermal Considerations CAUTION Ensure that the ambient temperature does not exceed the 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. CAUTION Ensure that proper airflow is maintained in the processor voltage regulator circuit. Failure to do so may result in damage to the voltage regulator circuit. The processor voltage regulator area (item A in Figure 21) can reach a temperature of up to 85 oC in an open chassis. Figure 21 shows the locations of the localized high temperature zones. 81

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Technical Reference
81
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 18
2.12 Thermal Considerations
CAUTION
Ensure that the ambient temperature does not exceed the 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.
CAUTION
Ensure that proper airflow is maintained in the processor voltage regulator circuit.
Failure to do
so may result in damage to the voltage regulator circuit.
The processor voltage regulator area
(item A in Figure 21) can reach a temperature of up to 85
o
C in an open chassis.
Figure 21 shows the locations of the localized high temperature zones.