I am glad that you agree Yogesh.
Note please that I did not deny the fact of the board repair by you. I only consider that the element of reliability is missing from this repair, rendering it unsuccessful according to objectively valid standards about a successful repair.
These two months of unproblematic function of the MB you refer to, mean practically nothing, because I don't know after how many years of normal operation, from the first time it was put in operation, this MB revealed this failure, in order for me to make a reasonable comparison.
"Keeping the analogies" therefore, I would expect that the same failure would appear again after a time duration of about five times earlier compared to the time it appeared for the first time. In other words, you found the cause of the problem but its cure is still incomplete. That is all I am saying. Anyway I already took in account the last phrase of your text before even putting my first comment.

Best Regards

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Sir,
I agree with you and Robert sir and thanks for your suggestions.
I have compared the similar section of both the MB and I found similar components in this section except this capacitor hence i have took the chance. Anyway i have repaired this board and period of say around two moths still it works fine without any problem.

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Hello Gerald

I have the feeling that you are misunderstood.
You obviously mean a strategy for resolving the intermittency problem of the mobo and not how to test it for bad caps. Anyway...

Best Regards

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Hello Gopal

It is very easy to check the total ESR pf parallel connected capacitors. Simply measure their total ESR and get the total picture of their status. Then, simply again, use your brains and estimate this result you have in hand. Note that a single 3.300μF cap, will measure near 0,01 Ohms, that is 10 milliohms. Then, if for example the device under test uses two caps in parallel, their healthy (anticipated) condition should give you 0,00 Ohms, that is, a short circuit indication. And this is because we have a "divide by two" condition, due to their parallel connection. Therefore if you have an indication in your ESR meter of say 0,1 Ohms as a result of five parallely connected caps, then it is obvious that their health is bad. Only then (according to my humble opinion) it is necessary to desolder and measure each one of them in order to find defective pieces among them. Not in advance.

Best Regards

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Hello Robert

I agree with you. See my comment below.

Best Regards

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But the replacement was smaller than the original in size also.

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Thanks Paris. Your comment is much more eloquent than mine.

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