IBM Power System 9040-MR9 Manual page 79

Figure 66. Replacing the memory voltage regulator modules
16. Place the SAS cables (A) against the foam of the SAS cable support (B) as shown in the following
figure. With your fingers holding the SAS cables against the foam, lower the SAS cable support (B)
and SAS cables straight down between the alignment pins (C).
The foam holds the cables against the side of the system and prevents air from blowing through the
side channel. Do not simply press the support (B) down in the channel on top of the cables.
System backplane for the 9040-MR9 65