searching nets me, so unless i totally fail at searching ill do
fzabkar wrote:
Rather than replace the board, locate the 12V TVS diode on the original board. It will most likely be shorted.
Does your board look like this one?
http://img220.imageshack.us/img220/5310/dsc2495yt8.jpgThe photo shows a burnt 5V TVS diode near the SATA power connector. Your PCB will have a shorted diode to the right of it, near the edge of the board.
If you can trust your PSU, then remove the 12V diode with flush cutters. Your drive will work OK without it, but it will no longer have overvoltage protection on the +12V supply.
For continued protection, you can replace the diode with an SMBJ12A from Farnell, Mouser, Digikey.
fzabkar wrote:
Check the two TVS diodes near the power connector for short circuits. Use a multimeter on the 200 ohms range. Also check the zero ohm resistor. It may have fused open.
The faulty diode can be removed, and the resistor can be replaced by a short length of wire, or a 2A picofuse. Just be sure that your PSU is OK, as you will no longer have any protection on the affected supply rail.
For continued protection, you can replace the 12V and 5V TVS diodes with an SMBJ12A and SMAJ5.0A, respectively, from Farnell, Mouser, Digikey.
Good luck.
all this stuff seems doable, especially since i have a friend who knows this kind of stuff. A sincere thank you, you have been very helpful!
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