Lenovo 70B4, User Manual And Hardware Maintenance Manual

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• The EMI integrity and cooling of the server are protected by having all drive bays covered or occupied.
The number of the installed hard disk drives in your server varies by model. The vacant hard disk drive
bays are occupied by dummy hard disk drive trays.
The following illustration shows the components of server models with up to eight 3.5-inch hot-swap
SATA or SAS hard disk drives.
Figure 12. Components of server models with up to eight 3.5-inch hot-swap SATA or SAS hard disk drives
1
Heat sink and fan assembly 2
14
Hard disk drive bay 1
2
CPU1 DIMMs (vary by model)
15
Hard disk drive bay 0
3
Heat sink and fan assembly 1
16
Front system fan 1
4
Intelligent Diagnostics Module (available in some
models)
17
Front system fan 2
5
Front panel
18
System board
6
Optical drive bay 2 (with an optical drive installed
in some models)
19
System board battery
7
Optical drive bay 1 (with an optical drive installed)
20
Low-profile PCI card bracket
8
Hard disk drive bay 7
21
Main PCI card bracket
9
Hard disk drive bay 6
22
Expansion card
10
Hard disk drive bay 5
23
Rear system fan 3
11
Hard disk drive bay 4
24
Power supply
Chapter 3
.
Product overview
29