Lenovo ThinkServer RD240 Hardware Maintenance Manual page 81

• To reduce fan noise, the user can manually change the fan speed mode when using a ThinkServer
8708EM2 RAID Adapter without a ThinkServer 8708EM2 RAID Battery attached. For instructions on how
to change the fan speed mode, refer to "Configuring the system fan speed" on page 120.
Installing the ThinkServer RAID 700 Adapter
Attention: Do not open your server or attempt any repair before reading and understanding the "Safety information"
on page iii and "Guidelines" on page 35.
This topic provides instructions on how to install the ThinkServer RAID 700 Adapter (hereafter referred to as
the RAID controller within this topic) and the battery card assembly for this RAID controller.
Notes:
1. If your server is shipped with a RAID card retention bracket, follow the instructions in this section to
install or remove the RAID controller.
2. If your server is shipped without a RAID card retention bracket, you have to install a RAID card retention
bracket on the riser card assembly before you install or remove the RAID controller. For instructions on
how to install the RAID card retention bracket, refer to the Important Information about the RAID Card
Retention Bracket (PN: 0A91937) that comes with your RAID controller option package.
3. The RAID card retention bracket might look different from the illustrations in this section.
4. Use any documentation that comes with the RAID controller and follow those instructions in addition to
the instructions in this section.
To install the RAID controller, do the following:
1. Remove all media from the drives and turn off all attached devices and the server. Then, disconnect all
power cords from electrical outlets and disconnect all cables that are connected to the server.
2. Remove the server cover. See "Removing the server cover" on page 37.
3. Remove the riser card assembly. See "Removing the riser card assembly" on page 52.
4. Touch the static-protective package that contains the RAID controller to any unpainted surface on the
outside of the server. Then, remove the RAID controller from the package.
5. Depending on your RAID controller, you might need to install a ThinkServer RAID 700 Battery (hereafter
referred to as the battery card assembly) on the RAID controller. The battery card assembly mounts
directly to the RAID controller through a small board-to-board connector (daughtercard).
Notes:
a. The battery card assembly protects the integrity of the cached data on the RAID controller by
providing backup power up to 72 hours in the case of a complete ac power failure or a brief power
outage. It has built-in functionality to charge the battery pack automatically and to communicate
battery status information such as voltage, temperature, and current to your server. It also provides
an inexpensive alternative to using an uninterruptible power supply, and a second level of fault
tolerance when used in conjunction with an uninterruptible power supply. For more information about
the battery card assembly, see Appendix A "RAID battery card assembly" on page 131.
b. The battery card assembly option kit contains a user guide, the battery card assembly, and three
Phillips-head screws. Do not remove the battery card assembly from the antistatic shipping
container until you are ready to install it. When you remove the battery card assembly from your
server, place it in its original container.
c. Check the appropriate support Web sites for the latest updates for your basic input/output system
(BIOS) code, utility programs, device drivers, and other software applications. Follow the instructions
provided by your Service Provider to download and install updates.
d. It is recommended that you replace the battery pack on the battery card assembly annually or after
500 recharging cycles, whichever comes first.
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Chapter 7 Installing, removing, or replacing hardware
69