Chapter 3 Maintaining the Server
Installing or Replacing Server Components
Installing Multiple PCIe Cards and Resolving Limited Resources
When a large number of PCIe
•Option ROM memory space
•
The topics in this section provide guidelines for resolving the issues related to these limited resources:
•Resolving Insufficient Memory Space to Execute Option ROMs, page
•Resolving Insufficient
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
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:
PCI OUT OF RESOURCES CONDITION:
ERROR: Insufficient PCI Resources Detected!!!
System is running with Insufficient PCI Resources! In order to display this message some
PCI devices were set to disabled state!
It is strongly recommended to power off the system
and remove some PCI/PCI Express cards from the system!
To continue booting, proceed to <Save & Exit> Menu Option and select Boot Device or <Discard Changes and Exit>.
WARNING: If you choose to continue booting some Operating
Systems might not be able to complete boot correctly!
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 Figure
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