Dell PowerEdge M910 - Manual (Page 218)

218 Installing Blade Components
Mezzanine Card Installation Guidelines
Full-Height Blades
Full-height blades support up to four mezzanine cards.
NOTE: Even though PowerEdge M610x is a full blade system, only two mezzanine
card slots (MEZZ1_Fab_C1 and MEZZ2_FAB_B1) in the expansion bay are available
for use. The other two slots on the system board (MEZZ1_FAB_C and
MEZZ2_FAB_B) are occupied by the mezzanine interface card which provides
connectivity between the PCIe expansion-card riser and the system board.
• Slot 1 and slot 3 support Fabric C. They must match the fabric type of the
I/O modules installed in I/O module bays C1 and C2.
• Slot 2 and slot 4 support Fabric B. They must match the fabric type of I/O
module installed in I/O module bays B1 and B2.
CAUTION: For PowerEdge M610x only, a bifurcated mezzanine card (that uses
two independent PCIe x4 controllers) cannot be installed in MEZZ1_FAB_C1 slot
unless either a bifurcated mezzanine card is also installed in MEZZ2_FAB_B1 slot
or no mezzanine card is installed in MEZZ2_FAB_B1. BIOS halts during POST if a
non-supported mezzanine card configuration is detected.
NOTE: Quad-port Ethernet mezzanine cards are bifurcated.
NOTE: The four mezzanine card slots do not need to be fully populated.
If a blade does require support by a particular fabric and only two external I/O
port connections are needed, only one mezzanine card is required. For
example, a Fibre Channel I/O module in I/O bay C1 or C2 only requires one
Fibre Channel mezzanine card in slot 1 or slot 3 in the blade.
If a blade does not require support from a particular fabric, a mezzanine card
is not required in either of the corresponding mezzanine card slots.
Types of Cards Supported
• PowerEdge M915 supports SFF mezzanine cards in all four slots. x8 PCIe
Gen 2 cards are supported.
• PowerEdge M910 supports SFF mezzanine cards in all four slots. x8 PCIe
Gen 1 and x8 PCIe Gen 2 cards are supported.
• PowerEdge M905 and M805 support LFF x8 PCIe Gen 1 mezzanine cards
in all four slots.
• PowerEdge M710 supports SFF and LFF mezzanine cards in all four slots.
x8 PCIe Gen 1 and x4 PCIe Gen 2 cards are supported.