How to identify capacitor rating

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vishnumrao

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I have 4 year old MSI Wind Nettop 100. It had been running reliably for the last 4 years. Recently it started freezing and refusing to post etc. Exactly the same problem described in this thread: https://forum-en.msi.com/index.php?topic=160868.0

I opened up the nettop and found 3 bulging caps. Pretty sure this is the problem. I plan to replace the 3. All same color. I think they are same rating.

Question: How do I identify the capacitor rating, so that I can order them online? The letters on the cap are R L X 105 deg C 0909. Color: Blue with Gold line. Please see picture of the cap here: http://ubuntuone.com/77PSAeTatQToSaUnHJzQTy

 
Solution
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Those blue capacitors are definitely bad. With caps, you want to pay attention to the capacitance, voltage, and temperature rating. Unfortunately your pictures don't indicate that information. Look for the capacitance (usually denoted in uF) and the voltage. Then measure the dimensions of the capacitor and buy some that are the same size and rating.

When you install the new capacitors, make sure you put them in the the right way. They are polarized and will explode if installed backwards.

--Russel
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vishnumrao

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I was in the middle of updating my original post with the numbers on the cap, when your reply came thru. Please see orginal post. I can't make any sense off the numbers.
 
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vishnumrao

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Thanks for the reply. I found the answer. Its 6.3V 1000uF. It was on the other side of the cap. Hidden from my view. After someone somewhere's reply, I did a 360 deg rotation and found the numbers hidden on the opposite side..
 
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rusabus

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Those blue capacitors are definitely bad. With caps, you want to pay attention to the capacitance, voltage, and temperature rating. Unfortunately your pictures don't indicate that information. Look for the capacitance (usually denoted in uF) and the voltage. Then measure the dimensions of the capacitor and buy some that are the same size and rating.

When you install the new capacitors, make sure you put them in the the right way. They are polarized and will explode if installed backwards.

--Russel
 
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vishnumrao

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Pretty hard to click any close up pics of the brown caps. They are also 6.3V 1000uF caps. But with some extra numbers lik 9(k) 3T, 3X on them. There is no visible bulging on the brown caps. All nice and flat. I hope they are not going to go bust. There is 14 brown ones of same size. Don't know if they are all the same rating.

I am going to fix the blue ones first and give it a shot. Any suggestions on replacement caps?
 
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