S
YSTEM
O
VERVIEW
A
BOUT
THE
S
YSTEM
1-9
The 3.5” HDD configuration system overview is displayed in the following image:
Figure 1-2.
3.5” System component overview*
* C
ONFIGURATION
MAY
VARY
BY
MODELS
.
Table 2: Component Overview
N
O
.
I
TEM
D
ESCRIPTION
1
Top front cover
Enclosure for hard disk drives bay.
2
Fan modules
System fan modules (x4).
3
DIMM slots
DDR4 DIMM slots, 12 per CPU.
4
Processor
CPU01 and CPU02 processors with heat sinks* on top.
5
PSU assembly
Redundant power supply unit assembly.
6
Expansion slots
SSD optional expansion bay. (*only for QuantaGrid D51B-2U)
7
Expansion slots
PCIe expansion bay*.
8
USB board
USB ports.
9
HDD assembly
3.5” model: 12 x hard disk drive assemblies
2.5” model: 24 x hard disk drive assemblies
(*only for QuantaGrid D51B-2U)
10
Front control panel
On/Off power button and LED.
11
Middle top cover
Only for QuantaGrid D51B-2U, 2.5” model
3
2
1
7*
4
8
9
10
5
5
4*
6
6
