[SOLVED] "UEFI defaults have been loaded" after PC reassembly ?

[JonatasA]

I've disassembled the PC, assembled it in a new case, disassembled again, assembled in the old case, disassembled again, assembled, disassembled again and reassembled in the new case again.

I had no issues up to the last part, when I got the message "UEFI defaults have been loaded".

The time and date were wrong, but when I got to the BIOS they were the hour and date I had either installed the motherboard in the case or installed the RAM and the graphics card.

I've set the settings as they were in my previous profile (the profile is also there) and the system booted normally.

What could have caused this on the final assembly since it didn't happen before ? All I did was clean the hardware before the final assembly.

 

[siaan312]

Well, firstly the motherboard noticed many hardware changes and decided to factory reset to perserve itself.
or, you accidentally took in and out the cmos battery.
Those are the 2 explanations I can think of.

 

[JonatasA]

Well, firstly the motherboard noticed many hardware changes and decided to factory reset to perserve itself.
or, you accidentally took in and out the cmos battery.
Those are the 2 explanations I can think of.

I sincerely hope that is the case. The hardware is the same and I could be wrong but I believe I have reseated the RAM in same slots they were.

The battery could also have somehow lost contact during the process.


I've taken a look at the manual and the CLRCMOS is right next to the SATA connector. Could a finger accidentally touching it while connecting the Sata cable have reset it?
What is weird is that the saved profile wasn't erased and the time was kept the same it was before the BIOS reset itself.

 

[CountMike]

I sincerely hope that is the case. The hardware is the same and I could be wrong but I believe I have reseated the RAM in same slots they were.

The battery could also have somehow lost contact during the process.


I've taken a look at the manual and the CLRCMOS is right next to the SATA connector. Could a finger accidentally touching it while connecting the Sata cable have reset it?
What is weird is that the saved profile wasn't erased and the time was kept the same it was before the BIOS reset itself.

CMOS battery when connected always powers some circuits in the MB. Disconnecting and reconnecting various parts can short that circuit and reset CMOS holding all settings BIOS/UEFI holds.

 

[JonatasA]

Thank you for the help.