Obtain efi32-srvr.rom , which is typically bundled with older versions of the macOS Unlocker tool.
Enter the UEFI/BIOS setup (usually F2 or Del during boot). Navigate to → Option ROM Execution Policy . Change the setting for the relevant PCIe slot from UEFI First or EFI Only to Legacy BIOS . efi32-srvr.rom
: Frequently used by enthusiasts building "Hackintosh" virtual machines for testing or legacy software support. How to Implement efi32-srvr.rom Obtain efi32-srvr
Since this is a custom firmware file often used in the "Hackintosh" and virtualization community, it is primarily hosted on developer repositories and enthusiast forums: GitHub Repositories : Several "Unlocker" projects include the firmware in their directories. You can find it on jtergogit/unlocker207 VMware Unlocker InsanelyMac Forum : This is a primary source for the Unlocker 2.0.x Change the setting for the relevant PCIe slot
Here is that string broken down and presented in various useful text formats:
efi32-srvr.rom
Power down the server, remove the suspected PCIe card, and attempt to boot. If the error disappears, the card’s ROM is faulty or its firmware needs an update. Clean the gold contacts and reseat firmly.