Lenovo 3822, 3821, 3719, 3823 manual Server components, 149

Chapter 7. Installing optional devices and replacing customer replaceable units

Important: Before you install optional hardware, make sure that the server is working correctly. Start the server, and make sure that the operating system starts, if an operating system is installed. If the server is not working correctly, see the Chapter 5, “Diagnostics,” on page 27 for diagnostic information.

This chapter provides detailed instructions for installing optional hardware devices in the server.

Server components

The following illustration shows the major components in the server.

Cover	USB cable/EasyLED diagnostics
	assembly
Rear adapter retention bracket	DVD drive
Air baffle	Bezel
Heat sink	Optical drive bay EMC shield
Microprocessor	2.5-inch EMC shield
Heat sink retention bracket	2.5-inch hot-swap drive
DIMMs	2.5-inch drive cage assembly
System board	SAS/SATA 2.5-inch backplane
VRM	Fan assembly
Power-supply cage	Hot-swap fan
Power supply	ServeRAID MR10i
Power-supply filler	ServeRAID BR10i
Control panel assembly	ServeRAID MR10is

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