Myrinet System Interconnect Guide

_________________________ Note _________________________
Do not o pe rate a M yrinet interconne ct for extended periods with missing
line cards. Use blank panels to fill in any empty line card slots. The
front of the e nclosure needs to be closed both for the efficiency of the fan
cooling and to avoid electromagnetic interference (EMI).
5.3 Replacing a fan tray
Thefantrayishotswappableandmonitoredviathelinemonitorcard. Youcan
identify it by its large handle, located on the right side of the Myrinet system
interconnect (Figure 5-5). Rem ove it by loosening the two locking screws and
pulling on the handle.
Figure 5-5: Removing a Fan Tray
Fan Tray Handle
Locking Screw
Locking Screw
_______________________ Important _______________________
When a fan tray is hot swapped, it must be replaced within two minutes.
Otherwise, the line cards might p ow er themselves off in response to
an over-temperature condition. Each line card has thermal sensors to
detect over-temperature conditions.
The fan tray actually holds eight small fans (Figure 5-6).
5-4 Replacing components