Lenovo 3057 Maintenance Manual page 48

Components of server models with 2.5-inch hard disk drive bays
Figure 22. Components of server models with 2.5-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
Backplanes for server models with 2.5-inch hard
disk drive bays
8
Rack handle (right)
9
2.5-inch hard disk drive area (right cage)
10
2.5-inch hard disk drive area (middle cage)
11
Pull-out information card
12
VGA DB-15 connector
CRU identification
CRUs are parts that can be upgraded or replaced by the customer. If a CRU is determined to be defective
during the warranty period, a replacement CRU will be provided to the customer. Customers are responsible
for installing the self-service CRUs for this product. Customers also can install optional-service CRUs, which
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ThinkServer RD430 Hardware Maintenance Manual
13
Slim optical drive (available in some models)
14
Diagnostic module (varies by model)
15
Rack handle (left)
16
Front panel board
17
System fans (4)
18
CPU1 DIMMs (vary by model)
19
CPU2 DIMMs (vary by model)
20
System board
21
System board battery
22
PCI Express cards (available in some models)
23
Riser card assembly 1