Dell EMC PowerEdge T640 - Cooling Fan Matrix; Removing a Middle or Rear Cooling Fan

• Mellanox CX4 SP 100 Gb NIC (6W1HY)
• Mellanox DP 40 Gb QSFP NIC (C8Y42)
• Intel QP 10 Gb Base-T NIC (K5V44)
• Solarare Sunspot DP 10Gb NIC (NPHCM)
• Solarare Nova DP 10Gb NIC (WY7T5)
• Qlogic DP 10Gb V1 NIC (VCXN5)
Listed below are the restrictions for fan redundancy:
• GPGPU congurations are not supported at 35deg. C of ambient or above.
• Mellanox 100G NICs are not supported.
For information on the restriction for fresh air condition, see the Expanded operating temperature restrictions topic in the Technical
Specication section.
Cooling fan matrix
Table 32. Cooling fan matrix
Chassis FAN1, FAN2 (Standard
[STD])
FAN3, FAN4, FAN5,
FAN6 (Standard [STD]/
High performance
[HPR])
FAN_EXT_R,
FAN_EXT_L
Fan conguration
3.5 inch x 8 Yes - - Base conguration
3.5 inch x 18 Yes Yes (STD) - Rich conguration
2.5 inch x 16 Yes - - Base conguration
2.5 inch x 32 Yes - - Base conguration
2.5 inch x 16 + NVMe Yes Yes (STD) - Rich conguration
Fan redundancy, FA and
high cooling tier PCIe
card
Yes Yes (STD) - Rich conguration
GPGPU card Yes Yes (HPR) Yes GPU conguration
Removing a middle or rear cooling fan
The procedure for removing a standard and a high performance fans is identical.
Prerequisites
WARNING
: Opening or removing the system cover when the system is on may expose you to a risk of electric shock. Exercise
utmost care while removing or installing cooling fans.
CAUTION: The cooling fans are hot swappable. To maintain proper cooling while the system is on, replace only one fan at a time.
1 Follow the safety guidelines listed in Safety instructions.
2 Follow the procedure listed in Before working inside your system.
Step
Press the release tab and lift the cooling fan out of the cooling fan assembly.
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Installing and removing system components