HDD GURU FORUMS

This WD WD10EAVS 1Tb was in a WD MyBook but it stopped working, no noise, no smell just as dead as a dodo.

Upon testing the power supply I found it was supplying 20V instead of 12V, so I guess this is the cause.

I'd like to get a similar logic board and replace it but apparently you need to swap the U12 ROM chip. My board has not got a U12 ROM chip so any ideas would be appreciated.

Also I've removed diodes D3 and D4 (I read that this might work) but still no good.

Ideas please!

Did you check R64 and R67?

Did you try connecting the drive directly to your computer's motherboard? It could be that there is an additional problem on the USB-SATA bridge board inside the enclosure.

Hi, I'll check R64 and R67, what should their values read.

Also, when I plug the drive onto the mother board, the PC switches itself off and wont turn on again untill the drive is removed again.

Thanks.

D3 is still present in this photo:
download/file.php?id=2926&mode=view

Have you removed D3 since the photo was taken?

R64 and R67 should measure 0 ohms.

If the PC won't power up, then there must be another short circuit. Measure the resistances between ground and each of the +5V and +12V pins at the SATA power connector.

Here is the pinout:
http://pinouts.ru/Power/sata-power_pinout.shtml

Yes,

D3 was definitely removed, and still same problem. The resistors are reading 0ohms as they should. I'll meter the pins on the SATA connector as you suggest.

Thanks.

hi,
i have this PCB in stock. please feel free to contact me by email or MSN if need. i can help with firmware transfer too.