Lenovo 6523 User Manual download pdf (Page 71)

v The drives that are preinstalled in the server come with power and signal cables

attached. If you replace any drives, remember which cable is attached to which

drive.

v When you install a drive, make sure that one of the signal cable drive connectors

is connected to the drive and that the connector at the other end of the signal

cable is connected to the system board or a compatible adapter or controller that

you have installed.

v When you route a cable, make sure that it does not block the airflow to the rear

of the drives or over the microprocessor or DIMMs.

The following cables are provided:

v Power cables: Four-wire power cables connect the drives to the power supply.

At the ends of these cables are plastic connectors that can be attached to

different drives; these connectors vary in size. Use either a four-wire power cable

or SATA power cable with SATA drives, but do not use both at the same time

(use one or the other).

v Signal cables: Signal cables are typically flat cables, also called ribbon cables,

that connect SATA attached, SATA and SAS to the system board. Two or three

types of signal cables come with the server:

– SATA attached (for optical drives): The flat SATA-attached signal cable has

two connectors. One of these connectors is attached to the optical drive, and

one is attached to one of the connectors on the system board.

– Simple-swap SATA: Simple-swap SATA models come with four SATA cables

that are already connected to the system board and the backplate at the rear

of the simple-swap drive cage.

– Hot-swap SAS/SATA: Hot-swap SAS/SATA models come with one or two

(depending on the model) data cables that connect the SAS/SATA controller to

the hot-swap backplane. The data cable provides inherent connectivity for the

SAS or SATA drives that the server supports. Therefore, additional cabling is

not required for these drives.

For more information about the requirements for SAS/SATA cables and connecting

SAS/SATA devices, see the documentation that comes with these devices.

See http://www.lenovo.com/thinkserver and click the Options tab for a list of

supported options.

Removing an adapter

To remove an adapter, complete the following steps:

1. Read the safety information that begins on page vii and “Installation guidelines”

on page 29.

2. Turn off the server and all attached devices; then, disconnect all power cords

and external cables.

3. Unlock and remove the side cover (see “Removing the side cover” on page

32).

4. Disconnect any cables from the adapter or any cables that impede access to

the adapter.

5. Open the rear retention bracket 1.

6. If you are removing a full-length adapter, press on the retaining tab (two blue

pull points) on the left side of the front adapter-retention bracket until the

release lever on the right side of the bracket clicks into place.

Chapter 5. Installing and replacing optional devices 55

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Lenovo 6523 User Manual Page 71

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