Please note that if the A04 or before A04 BIOS is currently installed on your system, you must first update to A05 BIOS and then flash to the latest A-rev BIOS. Added new key for Signed Firmware Updates. Updated to the 1.05 version of Dell GPE.Ĩ. Intel Trusted Execution Technology updatesħ. Updated to the MOB_P_13 version of the Intel microcode patch.Ħ. Updated to the 1.4.0 version of Intel PPM Reference Code.ĥ. Addressed some keyboard with USB Hub not accessible during POST.Ĥ. Fixed issue where TDM PBA SSO doesn't work when both FP and TDM PBA SSO are set for single user.ģ. Fixed issue where Intel Turbo boost non-functional. Updated to the 4208 version of ePSA diagnosticsĮDIT: Consider updating to newest BIOS A08ġ.Updated to the 1.3.72 version of the Intel PXE OROM.Updated to the MOB_P_08 version of the Intel microcode patch.Fixed issue where the IDT audio device would not appear in device manager when running a UEFI OS.Fixed issue where the error log data from the previous POST would show up if you shut down the machine at the F1/F2 prompt.Fixed issue where the BIOS would reboot instead of flashing when the /S parameter was used with the flash executable. Fixed issue in ATA mode where unaligned memory accesses would fail.Addressed intermittent boot issues in ATA mode.Fixed issue where a UEFI OS install would fail with greater than 8GB of memory.Addressed issues with the 'Auto-On Time' Setup field.Fixed issue where the system would not reboot the first time after disabling the Integrated NIC in Setup.Added DASH ‘PLDM for BIOS Control and Configuration? Added support for Signed Firmware Updates.There were lots of fixes in A05 version for E6420 (which I do have as well with I7 processor and it seems to work just fine. Most of the devices in driver pack you linked in your questions are older then the ones you get by directly downloading and installing your updates.
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