Dell 2130cn Service Manual page 621

Note: Carefully check the correct
orientation of ROM when carrying out
the following job.
3) Attach the ROMs that were removed
from old PWBA ESS on IC sockets of new
PWBA ESS with its notch aligned with the
notch in IC socket.
4) Secure the PLATE IF to the PWBA ESS
with the two screws (silver, 6mm).
Chapter 3 Removal and Replacement Procedures (RRPs)
Old
PWBA ESS
3 - 170
New
PWBA ESS