HP ProLiant WS460c Gen9 Maintenance And Service Manual page 46

If the screws do not have Nylok coating, or are used, add Loctite 242 Threadlocker 3~5 threads
from the tip.
Secure the screws on the front I/O plate. Torque both front plate screws to 3.0~3.5 in-lbf.
5.
IMPORTANT: Ensure that air flow impedance control labels cover the three openings on
each end of the I/O plate. These labels control the air flow into the GRID card and balance
the air flow to adjacent blades. Using the card in the expansion blade without implementing
this measure might potentially result in unexpected host shutdown of the host blade and/or
nearby blades in the same enclosure. These labels are replaceable with any commonly
available tape or label, as long as the tape or label covers the hole as shown and has
construction to withstand the air flow without deforming or falling off when powered off. After
installation, always ensure that the labels are not removed or detached.
Removal and replacement procedures 46