Uefi0078 ((top)) «SECURE 2027»

The error is reported by the Unified Extensible Firmware Interface (UEFI) after the processor detects a hardware-related issue. Common Causes

In desktop systems, a loose SATA data cable or power cable can cause intermittent drive detection. On laptops, a loose internal M.2 or 2.5-inch drive connection triggers the same error.

Dell often releases firmware updates that improve "error handling." Using the Dell Support Site, enter your Service Tag and check for updates to: iDRAC with Lifecycle Controller Chipset Drivers 5. Swap and Test (Isolation) uefi0078

In standard UEFI PI (Platform Initialization) specifications, codes often follow a pattern. While 0078 is not a universal standard, based on motherboard vendor logs (specifically from and Insyde ), code 0x78 generally points to a PCI Resource Allocation failure .

Each installed operating system creates a boot entry in the UEFI NVRAM. If that entry becomes corrupted (due to a failed update, improper shutdown, or malware), the firmware cannot locate the bootloader, resulting in UEFI0078. The error is reported by the Unified Extensible

Changing SATA mode after OS installation may require a registry tweak in Windows or reconfiguration of initramfs in Linux to avoid a blue screen.

The format of a typical UEFI error is: , where: Dell often releases firmware updates that improve "error

In 80% of cases, clearing the CMOS or forcing PCIe Gen 3 solves the problem. Only 10% of users actually have a dead GPU or motherboard.

If the error persists and points to a specific memory module (e.g., DIMM A1), swap that module with another known-good module (e.g., DIMM B1). If the error follows the stick to the new slot, the RAM is faulty. If the error stays at slot A1, the motherboard or CPU socket may be damaged. Conclusion

In some cases, the system may boot fine after a restart, indicating an intermittent issue. However, persistent UEFI0078 errors suggest a deeper hardware or configuration problem.