IBM Power System 9040-MR9 Manual page 77

Figure 64. Replacing the TPM card
14. Replace the memory module riser cards in locations P1-C26, P1-C27, P1-C28, P1-C29, P1-C32, P1-
C33, P1-C34, and P1-C35.
a) Ensure the release latches (A) are fully open to a 90 degree angle as shown in the following figure.
b) Align the memory module riser card with the connector.
c) Press the memory module riser card firmly into the connector.
d) Rotate the release latches into the closed position, and press the release latches down to ensure
that the memory module riser card is fully seated into the connector.
e) Repeat steps "14.a" on page 63 through "14.d" on page 63 for the remaining memory module
riser cards.
System backplane for the 9040-MR9 63