Lenovo 3797 - Manual (Page 53)

1 Cover 11 CD/DVD drive
2 PCI riser-card assembly 12 Operator information panel
3 PCI riser-card assembly 13 Front bezel (some models)
4 Heat sink 14 4-drive filler panel
5 Microprocessor 15 SAS hard disk drive backplanes
6 Heat-sink retention module 16 SAS riser card
7 DIMM 17 Fan bracket
8 System board 18 Fans
9 Power-supply filler panel 19 DIMM air baffle
10 Power supply 20 Microprocessor 2 air baffle
Removing the cover
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, or that a 19990305 error code is displayed,
indicating that an operating system was not found but the server is otherwise
working correctly. If the server is not working correctly, see the Hardware
Maintenance Manual for diagnostic information.
To remove the cover, complete the following steps:
1. Read the safety information that begins on page vii and “Installation guidelines”
on page 33.
2. If you are planning to view the error LEDs that are on the system board and
components, leave the server connected to power and go directly to step 4 on
page 38.
3. If you are planning to install or remove a microprocessor, memory module, PCI
adapter, battery, or other non-hot-swap optional device, turn off the server and
all attached devices and disconnect all external cables and power cords (see
“Turning off the server” on page 31).
Chapter 5. Installing optional devices and replacing customer replaceable units 37