Chapter 7. Removing And Installing Server Components; Before Removing Or Installing Server Components; System Reliability Guidelines; Working Inside The Server With The Power On - Lenovo x3250 m6 Installation And Service Manual

Chapter 7. Removing and installing server components

This chapter provides instructions on how to remove and install hardware for your server. You can expand
the capabilities of your server by adding new hardware devices, such as memory modules, PCIe cards, or
other server options, and maintain your server by replacing the failing hardware devices. If you are handling
a server option, refer to the appropriate installation and or removal instructions in this topic along with the
instructions that come with the option.
For information about warranty terms, see the Warranty Information document that comes with the server.
For more information about getting service and assistance, see Appendix D "Getting help and technical
assistance" on page 661.

Before removing or installing server components

Attention: Static electricity that is released to internal server components when the server is powered-on
might cause the system to halt, which might result in the loss of data. To avoid this potential problem, always
use an electrostatic-discharge wrist strap or other grounding system when removing or installing a device.

System reliability guidelines

To help ensure proper system cooling and system reliability, make sure that the following requirements
are met:
• Each of the drive bays has a drive in it, otherwise a filler and electromagnetic compatibility (EMC) shield
installed must be installed.
• If the server has redundant power, each of the power-supply bays has a power supply installed.
• There is adequate space around the server to ensure the server cooling system works properly. Leave
approximately 50 mm (2.0 inches) of open space around the front and rear of the server. Do not place
objects in front of the fans. For proper cooling and airflow, install the server cover before you turn on
the server. Operating the server for extended periods of time (more than 30 minutes) with the server
cover removed might damage server components.
• You have followed the cabling instructions that come with optional adapters.
• You have replaced a failed fan as soon as possible.
• You have replaced a hot-swap drive within two minutes of removal.
• You operate the server with the air baffle installed. Operating the server without the air baffle might
cause the microprocessor to overheat.

Working inside the server with the power on

Guidelines to work inside the server with the power on.
Attention: Static electricity that is released to internal server components when the server is powered-on
might cause the server to halt, which might result in the loss of data. To avoid this potential problem,
always use an electrostatic-discharge wrist strap or other grounding system when you work inside the
server with the power on.
You might have to have the server turned on while the cover is off, to look at system-board LEDs or replace
hot-swap components. Follow these guidelines when you work inside a server that is turned on:
• Avoid wearing loose-fitting clothing on your forearms. Button long-sleeved shirts before working inside
the server; do not wear cuff links while you are working inside the server.
© Copyright Lenovo 2016 87