How to Repair Corrupted BIOS

Check this section, we have the time, when the power is on to get the signal from Cpu. But motherboard no display, then check the BIOS circuit as follows.

bios pin detail


  • Check this section, we have the time, when the power is on to get the signal from Cpu. But motherboard no display, then check the circuit as follows.
  • First, check the BIOS IC will supply VDD pin 3.3v. 3.3v supply is missing. The VRM / SMPS circuit to drive the supply will check for open circuit.
  • VDD pin of the IC is to get on the positive supply, this will check the reset and clock signal on the pin.
  • Reset and clock signal is found, it will check the data on the data pin DQ1 the DQ7. If you can not find the data on the data pin, inside the store the BIOS file is bad. To re-program it.
  • While the program, the program is to get the message to Fail, ROM IC is bad. Change it.
How to bios Re Program
 Note:
If you put a new Rom Ic,  Acess Time should be identical to that of ic.   Blank Ic first, by the programmer to program  Will on the motherboard.