To Remove And Replace The Fan Controller Board - Agilent Technologies 54845B Manual

To remove and replace the fan controller board

Disconnect the power cable and remove the cover.
1
Disconnect the following cables from the fan control board.
2
• All six fan power cables from the fan control board
• Motherboard sense line 1 at P8
• Power supply control cable at P10
• Controller board power at P1
• Motherboard sense line 2 at P9
Remove the two T10 screws from the fan controller board.
3
Lift board out of chassis.
4
To re-install reverse this procedure paying attention to polarity of power cables.
5
Chapter 6: Replacing Assemblies

To remove and replace the fan controller board

6–29