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 Post subject: Gigabyte 120GB SSD got thunderstruck
PostPosted: June 10th, 2024, 7:48 
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Joined: April 17th, 2022, 22:39
Posts: 68
Location: Vietnam
So i got this Gigabyte SSD drive running Phison PS3111-S11-13. It got thunderstruck and have some blown components with a short circuit. Plugging into PC3000 shows all kinds of spikes, same with FW pins plugged in. Upon closer inspection i found 2 blown components. Replaced them however the short still persist.

Tried voltage injection and found out the problem was the Controller. With the controller lifted - The short is gone/

I reballed and resoldered a new controller from the same Gigabyte 120GB drive PS3111-S11-13. However now when plugging into PC3000. It shows no signs of life. No amps drawn

What can be the reason?? Can anyone provide voltage diagram where can i test the voltage??

Many Thanks!


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File comment: No sign of life
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File comment: Blown Components
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File comment: Back Side
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4fa1b7112274812ad865.jpg [ 502.99 KiB | Viewed 497 times ]
File comment: Front Side
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ba5439e1ac840fda5695.jpg [ 643.16 KiB | Viewed 497 times ]
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 Post subject: Re: Gigabyte 120GB SSD got thunderstruck
PostPosted: June 10th, 2024, 12:17 
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Joined: September 8th, 2009, 18:21
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Location: Australia
Measure the voltages at the 3 inductors.

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 Post subject: Re: Gigabyte 120GB SSD got thunderstruck
PostPosted: June 10th, 2024, 15:45 
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I think all 3 DC-DC converters were damaged, not just 2.

The third converter can be seen here:

https://ixbt.online/live/images/original/00/85/10/2019/12/02/a65424a003.jpg

RT8010GQW, Richtek, 1.5MHz, 1A, High Efficiency PWM Step-Down DC/DC Converter, 2.5V to 5.5V input, marking ET, adjustable:
https://www.richtek.com/SaveDownload.aspx?specid=RT8010%2FRT8010A

Measure the feedback resistors to confirm that the FB voltage is correct for this layout.

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 Post subject: Re: Gigabyte 120GB SSD got thunderstruck
PostPosted: June 11th, 2024, 3:05 
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Joined: April 17th, 2022, 22:39
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Location: Vietnam
So this are the voltages that i got :(

5v going in the resistor 0v going out


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 Post subject: Re: Gigabyte 120GB SSD got thunderstruck
PostPosted: June 11th, 2024, 3:20 
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Are you measuring the voltages between inductor and ground (correct), or between the ends of the inductor (wrong)?

G2822RC1U, Global Mixed-mode Technology, 1MHz, 3A Synchronous Step-Down Regulator, 2.7V - 6.5Vin, marking 2822, TDFN2X2-8:
http://www.gmt.com.tw/product/datasheet/EDS-2822.pdf
https://web.archive.org/web/20211128202728/www.gmt.com.tw/product/datasheet/EDS-2822.pdf

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 Post subject: Re: Gigabyte 120GB SSD got thunderstruck
PostPosted: June 11th, 2024, 8:29 
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Joined: April 17th, 2022, 22:39
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Location: Vietnam
fzabkar wrote:
Are you measuring the voltages between inductor and ground (correct), or between the ends of the inductor (wrong)?

G2822RC1U, Global Mixed-mode Technology, 1MHz, 3A Synchronous Step-Down Regulator, 2.7V - 6.5Vin, marking 2822, TDFN2X2-8:
http://www.gmt.com.tw/product/datasheet/EDS-2822.pdf
https://web.archive.org/web/20211128202728/www.gmt.com.tw/product/datasheet/EDS-2822.pdf


yes. Between inductor and ground

i do have 5v input in each of the of the Step-out converters. However no output at all Vin 5v - Vout 0v


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 Post subject: Re: Gigabyte 120GB SSD got thunderstruck
PostPosted: June 11th, 2024, 12:48 
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Measure the resistances between each inductor and ground. If there is no short, and if the EN-able pins of each converter are at 5V, then the ICs must all be faulty. But you replaced all of them, so how could that be possible? :-?

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 Post subject: Re: Gigabyte 120GB SSD got thunderstruck
PostPosted: June 14th, 2024, 15:51 
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Joined: April 17th, 2022, 22:39
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Location: Vietnam
So eventually i did not manage to find the fault of the SSD. Maybe the board was damaged internally because of the lightning

So i've gone through Chip swap procedure instead.

It was so lucky that All data got fully recovered! :wink:


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 Post subject: Re: Gigabyte 120GB SSD got thunderstruck
PostPosted: June 16th, 2024, 13:43 
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Joined: August 15th, 2006, 3:01
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Location: CDRLabs @ Chandigarh [ India ]
Well,
Very Nice Job Keep it Up ....

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