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Refer above to the Figure 2 block diagram for details and below to Tables 1, 2 and 3 for slot assignments.
Table 1
.
Main I/O Board
Standard E
xpansion
S
lots
NOTE: Up to 11 slots supported; all full-length-full-height. Standard: 2 PCI-E 2.0 x8, 3 PCI-E 2.0 x4.
Expansion Slot
#
Technology Width
Connector
Width*
Bus / Dev
Number**
Form Factor Notes
1
N/A
N/A
N/A
N/A
N/A
N/A
2
N/A
N/A
N/A
N/A
N/A
N/A
3
N/A
N/A
N/A
N/A
N/A
N/A
4
N/A
N/A
N/A
N/A
N/A
5
N/A
N/A
N/A
N/A
N/A
6
N/A
N/A
N/A
N/A
N/A
7
PCI Express
Gen2
x4 x8 0/0A FH/FL
8
PCI Express
Gen2
x4 x8 0/09 FH/FL
9
PCI Express
Gen2
x8 x16 0/07 FH/FL
10
PCI Express
Gen2
x4 x8 0/01 FH/FL
11
PCI Express
Gen2
x8 x16 0/05 FH/FL
* Default bus assignment. Inserting cards with PCI bridges may alter the actual bus assignment number.
** Slots enumerated differently based on OS. MS OS's enumerate from lowest to highest Device ID by
bus (starting with the lowest bus).
FL= Full length; FH = Full height; LP = low profile.
Table 2
.
Expansion Slots
With I/O Expander (combination PCI
-
X, PCI
-
e and 300W GPU
Expansion Slot
#
Technology Width
Connector
Width*
Bus / Dev
Number**
Form Factor Notes
1
PCI
-
X
64
-
bit
N/A
82/01
FH/FL
100MHz
2
PCI
-
X
64
-
bit
N/A
82/02
FH/FL
100MHz
3
PCI Express
Gen2
x16 x16 80/07 FH/FL
4
PCI Express
Gen2
x4 x8 80/01 FH/FL
5
N/A
N/A
N/A
N/A
N/A
N/A
6
PCI Express
Gen2
x16 x16 80/03 FH/FL
7
PCI Express
Gen2
x4 x8 0/0A FH/FL
8
PCI Express
Gen2
x4 x8 0/09 FH/FL
9
PCI Express
Gen2
x8 x16 0/07 FH/FL
10
PCI Express
Gen2
x4 x8 0/01 FH/FL