"Insufficient Memory to Shadow PCI ROM" BIOS POST Error Message for Intel® Server Boards and Intel® Server Systems

Last Reviewed: 24-Apr-2017
Article ID: 000007608

What am I seeing?
The "Insufficient memory to Shadow PCI ROM" BIOS error message may be displayed during POST under certain system configurations and/or when invoking certain option ROM configuration utilities.

Why am I seeing it?
The display of this POST error message is a result of certain adapters and/or adapter option ROM utilities requesting an exorbitant amount of option ROM space that depletes all space available for other installed PCI adapters and onboard components. The Intel® Server Board BIOS displays this POST error message to indicate that it could not load other option ROMs due to lack of sufficient memory.

This limitation is not specific to Intel® Server Boards, but rather a legacy BIOS limitation present on all BIOS-based platforms.

How to fix it
At this moment, there is no workaround or fix that works for all adapters available in the market. In BIOS Setup (F2), you may disable onboard components not being used (for example, NIC). Disabling these components de-allocates memory space to compensate depletion of BIOS option ROM by these adapters.