Oh my..
I had hoped that there is some chance for me. I actually have a Hitachy 750GB drive with the same death sentence. So will see what good comes from that when I receive the donor.
Here are the WD740 drive info for future info seekers:
1,2 are the dead patients and 3, 4 are the donors:
HDD frontPCB backPCB frontThere are some dead components shown on the PCB. I found that one chip also had a blown tiny hole. Like a laser had cut it or something.
So you all think that the Pre-amp is blown too? And replacing the Pre-amp is difficult. I know opening HDD is very likely to fail. Specially DIY.
Does anyone can share experience with Raptors?
Where can be found the exact torque for the screws, are they trade secret?
I have to find the head remover tool probably too, for specially Raptors or have some found tools fitting?
Here is the PSU cables of how the power wires were sorted differently. There is no warning that I have seen ever. The cables fit nicely without any resistance to give hint that there might be a problem connecting old cables to new PSU. Old was some Zalman 500W and new was SeaSonic fanless 460W. If your PSU hangs or does not want to start when you installed new PSU, disconnect hurriedly from the mains and disconnect all cables. Next step is to check the PSU without any devices and to see what voltages go to where. You can see from the modular cable ends, that connect to the PSU, if the voltages go to correct places.
Do not connect any devices to test the voltages!Modular PSU 6pin cable differences - DANGEROUS!Thanks for all your help!