hello, i need some help

I have a western digital 160 GB hard drive (wd1600aajs) that after a power falure is no longer detectd in the system bios.

I have change the PCB with an identical drive, but still nothing ????

Thanks

Hi,

This can be different problems.
Anyway, a simple pcb swap usually not solves problems, but makes more...
If you want your data, ask some pro near you for help.

If you want read, try this:
results-the-yourself-solutions-t11912.html

Janos

Specialist equipment is needed to maintain compatibility between the firmware on the HDD and the code in ROM of the PCB. Simply replacing PCB is useless. Professional help is needed.