Expansion Card Installation Guidelines; Removing An Expansion Card - Dell External OEMR R420 Owner's Manual

Expansion Card Installation Guidelines

Your system supports PCI Express Generation 2 and Generation 3 expansion cards.
NOTE: If you install a second processor, you must upgrade expansion card riser 1 to optimize PCIe slot 1 speed.
The following table provides the riser configurations for single- and dual-processor systems:
Table 3. Riser Configuration for Single- and Dual-Processor Systems
Number of Processors
One
Two
NOTE: The expansion-card risers listed in the above table cannot be interchanged between single- and dual-
processor systems.
The following table provides a guide for installing expansion cards to ensure proper cooling and mechanical fit. The
expansion cards with the highest priority must be installed first using the slot priority indicated. All other expansion
cards must be installed in card priority and slot priority order.
Table 4. Expansion-Card Installation Priority
Card Priority Card Type
1 RAID
2 Converged Network
Adapters (CNAs)
3 10 Gb NICs
4 FC8 HBA
5 FC4 HBA
6 1 Gb NICs
7 Non-RAID

Removing An Expansion Card

CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by your
warranty. Read and follow the safety instructions that came with the product.
Expansion Card Connectors
Riser 1
PCIE_G2_X4
iDRAC_Enterprise
PCIE_G3_X16
iDRAC_Enterprise
Height
Standard Height
Low Profile
Standard Height
Low Profile
Standard Height
Low Profile
Standard Height
Low Profile
Standard Height
Standard Height
Low Profile
Standard Height
Low Profile
Riser 2
PCIE_G3_X16
PCIE_G3_X16
Slot Priority
2 or 1
2 or 1
2 or 1
2 or 1
2 or 1
2 or 1
2 or 1
Max Allowed Per Slot
1
1
1
1
1
1
1
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