D5400XS Technical Product Specification

Technical Reference

2.5.2 Fan Header Current Capability

CAUTION

Processor fans must be connected to processor fan headers, not to a chassis fan

header. Connecting a processor fan to a chassis fan header may result in onboard

component damage that will halt fan operation.

Table 28 lists the current capability of the fan headers.

Table 28. Fan Header Current Capability

Fan Header Maximum Available Current

Processor fans (2) 2.0 A

Front chassis fan 1.5 A

MCH fan 3.5 A (direct connect 12V rail)

Rear chassis fan 1.5 A

Auxiliary rear chassis fan 2.0 A

DIMM cooling fan 3.5 A (direct connect 12V rail)

ESB2-E and PCI Express fan 3.5 A (direct connect 12V rail)

2.6 Thermal Considerations

CAUTION

A chassis with adequate cooling is essential for this board. Refer to the critical

temperature map (

Figure 17) and ensure that positive airflow is provided for each of

those areas. In addition, supplemental cooling for the FBDIMM memory is

recommended.

CAUTION

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 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.