IBM x3100 M5 Type 5457 Installation And Service Manual page 260

Configuration cable
Figure 154. 2.5" hot swap hard disk drive backplane cabling installation for 5U server model
with hot-swap power supplies
Configuration cable
Figure 155. 3.5" hot swap hard disk drive backplane cabling installation for 5U server model
with hot-swap power supplies
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System x3100 M5 Type 5457: Installation and Service Guide
The following illustration is for 5U server models with 3.5" hot swap hard
disk drives installed.
Power cable
4. Install the screws that secure the hot-swap hard disk drive backplane to the
drive cage.
Note:
v A total of four screws need to be installed for backplanes that support 2.5"
hot-swap hard disk drives.
v A total of two screws need to be installed for backplanes that support 3.5"
hot-swap hard disk drives.
The following illustration is for 5U server models with 2.5" hot swap hard
disk drives installed.
Power cable
Signal cables
Signal cable