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| Overvolted Kingston A400 480GB SSD http://forum.hddguru.com/viewtopic.php?f=10&t=40784 |
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| Author: | fzabkar [ January 3rd, 2021, 17:14 ] |
| Post subject: | Re: Overvolted Kingston A400 480GB SSD |
I can't see the part number, but the 10-pin IC looks like an e-fuse. There appears to be a 5V TVS diode nearer to the SATA power connector. There should be 5V on that. The e-fuse should have 5V on Vin and Vout. Check that Vin and Vout are not shorted to ground. PCB protection devices - Electronic Fuse: http://www.hddoracle.com/viewtopic.php?f=100&t=1615&p=16092#p8872 If the e-fuse is open circuit, and if there is no other damage, you can bridge Vin to Vout with a shorting link. In fact I think you will find that the two pads above the TVS diode are reserved for a standard fuse. If so, then you can snip the pins off the e-fuse and solder a standard fuse (or wire link) between those two pads. I can't see the circuit clearly, so you will need to decide whether this is correct. Personally, I would confirm that there is no short to ground at any of the inductors. If these are shorted, then the main ICs could be dead. |
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| Author: | AlfredoHAC [ January 3rd, 2021, 17:21 ] |
| Post subject: | Re: Overvolted Kingston A400 480GB SSD |
Forgot to say, I've already replaced the 5V TVS Diode. The old one was completely open. |
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| Author: | AlfredoHAC [ January 3rd, 2021, 22:10 ] |
| Post subject: | Re: Overvolted Kingston A400 480GB SSD |
I don't know how to thank you fzabkar! Quote: If the e-fuse is open circuit, and if there is no other damage, you can bridge Vin to Vout with a shorting link. In fact I think you will find that the two pads above the TVS diode are reserved for a standard fuse. If so, then you can snip the pins off the e-fuse and solder a standard fuse (or wire link) between those two pads. I shorted the "standard fuse" pads above the TVS Diode, and the SSD finally worked, now I'm making backup of my files. |
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