Optiplex 380 help

[jacob.jolliff23]

Is the bios connected to the Tx3 connector by the graphics card

 

[william p]

The BIOS is a chip soldered on the motherboard. Actually the BIOS is the program on the CMOS chip. In a Dell the BIOS can be updated by a download from Dell installed in Windows. There is a battery on the MB that maintains any saved changes to the BIOS settings, Removing it resets the BIOs to it's default values, there is a jumper that does this also. There isn't a connector involved. The BIOS only runs at start up and turns on and tests all the drives and CPU and memory so the computer can run. After that it doesn't do much of anything.