fzabkar wrote:
I wonder if the OP swapped cables between different modular PSUs?
Warning: do not interchange modular PSU cables:
http://www.hddoracle.com/viewtopic.php?f=56&t=2545It might be worth confirming the pinout:
https://allpinouts.org/pinouts/connectors/power_supply/pci-express-pcie-8pin-power/I used the original cable that came with the PSU. Before plugging the connector to the external hard drive i doubly checked the value and the polarity with a DMM: it showed +12.2V center positive like the original PSU, so I thought I was ok
fzabkar wrote:
The damage to the HDD may be confined to the protection components, in which case there may be a simple, no cost, DIY fix.
TVS Diode FAQ:
http://www.hddoracle.com/viewtopic.php?f=100&t=86PCB Protection devices - electronic fuse:
http://www.hddoracle.com/viewtopic.php?f=100&t=1615&p=8872#p8872If this is the case it would be amazing, tomorrow I'll study this stuff, thank you!
pepe wrote:
Given the situation i would test every component separately, ie, the external drive with its own PSU, the PC PSU on its own and the mobo with a different PSU
PSU looks ok, I replaced the main board with another old one and the system is working fine. Except for checking output voltages I have no instruments to deeply test the PSU
I plugged another PSU to the motherboard but it doesn't power up, I removed every peripheral and the CMOS battery and in the next day I'll retry. I double checked and there are no signs of burnt components. Only the usb 3.0 ports if smelled closely the smell of burnt electronics, but there are no signs of smoke
The pcb of the external drive looks visually ok in every component. Upon a close inspection I saw that one of the pins of the mini usb 3.0 connector looks a bit burnt, and it's the only sign of burnt stuff I've been able to find.
I don't know if the pcb still works because I starts a disk only when plugged tu a PC and I don't know if it is now safe to connect it to a PC and to a hard drive.
Thank you very much for your inputs!