Lenovo 3057 Maintenance Manual page 47

Components of server models with 12 3.5-inch hard disk drive bays
Figure 21. Components of server models with 12 3.5-inch hard disk drive bays
1
Cooling shroud
2
Power supply cooling shroud
3
Riser card assembly 2
4
One or two hot-swap redundant power supplies
5
PCI Express cards (available in some models)
6
Heat sinks with microprocessors underneath
7
Rack handle (right) with front controls and LEDs
8
3.5-inch hard disk drive area
9
Rack handle (left) with front USB connectors
10
Backplane for server models with 12 3.5-inch hard disk
drive bays
11
System fans (4)
12
CPU1 DIMMs (vary by model)
13
CPU2 DIMMs (vary by model)
14
System board
15
System board battery
16
Expander card
17
RAID card
18
Riser card assembly 1
.
Chapter 3 Product overview
33