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Chapter 3
Maintaining the Server
Installing Multiple PCIe Cards and Resolving Limited Resources
When a large number of PCIe add-on cards are installed in the server, the system may run out of the
following resources required for PCIe devices:
•
•
The topics in this section provide guidelines for resolving the issues related to these limited resources.
•
•
Resolving Insufficient Memory Space to Execute Option ROMs
The system has very limited memory to execute PCIe legacy option ROMs, so when a large number of
PCIe add-on cards are installed in the server, the system BIOS might not able to execute all of the option
ROMs. The system BIOS loads and executes the option ROMs in the order that the PCIe cards are
enumerated (Slot 1, Slot 2, Slot 3, etc.).
If the system BIOS does not have sufficient memory space to load any PCIe option ROM, it skips loading
that option ROM, reports a system event log (SEL) event to the CIMC controller and reports the
following error in the Error Manager page of the BIOS Setup utility:
ERROR CODE SEVERITY
146
To resolve this issue, disable the Option ROMs that are not needed for system booting. The BIOS Setup
Utility provides the setup options to enable or disable the Option ROMs at the PCIe slot level for the
PCIe expansion slots and at the port level for the onboard NICs. These options can be found in the BIOS
Setup Utility Advanced PCI Configuration page (see
OL-24342-01z
Option ROM memory space
16-bit I/O space
Resolving Insufficient Memory Space to Execute Option ROMs, page 3-51
Resolving Insufficient 16-Bit I/O Space, page 3-52
INSTANCE
Major
N/A
DESCRIPTION
PCI out of resources error.
Major severity requires user
intervention but does not
prevent system boot.
Figure
Cisco UCS C260 Server Installation and Service Guide
Installing or Replacing Server Components
3-28).
3-51
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