Which cap is the possibly bad one on a Mini?

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JayDee
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Which cap is the possibly bad one on a Mini?

Mon Jun 14, 2021 9:18 am

I have two Minis that I think may be affected by the "defective 3.3V cap" issue as mentioned here:
https://forum.netonix.com/viewtopic.php?f=6&t=2591&hilit=CAP+common#p18176

Would you mind sharing which cap this is on the board, and what value, rating, etc, it should be replaced with?

I'm interested in changing the cap myself.

Thanks.

(Sorry for the duplicate post. I tried to ask about this last week, but I think my post was missed due to being added to an old thread.)

Garnet
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Re: Which cap is the possibly bad one on a Mini?

Wed Jul 07, 2021 3:01 pm

I would also like this information.

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lligetfa
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Re: Which cap is the possibly bad one on a Mini?

Wed Jul 07, 2021 8:03 pm

I pinged Dave for an answer.

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JayDee
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Re: Which cap is the possibly bad one on a Mini?

Tue Jul 27, 2021 1:49 pm

lligetfa wrote:I pinged Dave for an answer.


Was a response received?

Garnet
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Re: Which cap is the possibly bad one on a Mini?

Tue Jul 27, 2021 4:29 pm

JayDee wrote:
lligetfa wrote:I pinged Dave for an answer.


Was a response received?


^

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Dave
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Re: Which cap is the possibly bad one on a Mini?

Tue Jul 27, 2021 4:51 pm

C10 & C11 need to be changed murata part # GRM31CR60J227ME11L

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JayDee
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Re: Which cap is the possibly bad one on a Mini?

Thu Jul 29, 2021 2:00 pm

Thanks! I've placed an order with Mouser. I'll let you know how it goes.

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Re: Which cap is the possibly bad one on a Mini?

Thu Jul 29, 2021 2:16 pm

Thanks Dave

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JayDee
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Re: Which cap is the possibly bad one on a Mini?

Thu Aug 05, 2021 9:06 am

I changed the caps on one of my boards. They didn't go on the board quite as straight and centered as I would have liked, but they're on there.

Looks good so far. I'm up to 13 hours uptime now with 6x 1Gbps links. When I tested immediately prior to changing the caps it would reboot within 5 minutes if all the links were up.

I guess I'll do the same on the other board now.

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Re: Which cap is the possibly bad one on a Mini?

Sun Aug 08, 2021 11:59 am

The first board (rev F) still looks good. It's up to nearly 90 hours of uptime now.

I did the second board now. This one was a rev E, and in its case the equivalent labels on the board were C228 and C229.

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