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Tutoriels de réparation et d'entretien pour la mémoire vive ou RAM (Random Access Memory - mémoire à accès aléatoire) pour les ordinateurs PC et les ordinateur Mac.

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Identify damaged SMD components on DDR3 SDRAM module

I have a G.Skill Ripjaws 4GB 240-Pin DDR3 SDRAM module (F3-10666CL9D-8GBRL).

I managed to damage/break off some of the SMD components near the pins on a DDR3 SDRAM module. The rest of the module is fine, so it would be a waste to throw it away because a few components got knocked off.

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Here are a couple of pictures of the damaged module and a working module. The first eight components on the lower left corner of the lower module are damaged/missing. Only the eighth component has any labeling; it has eight pins and has the number 150 written on top.

I imagine that these components are fairly standard across DDR3 SDRAM modules and appear to be used all over the module. Is there any way to identify them visually or is there a reference schematic available somewhere that I could look at? or will I have to remove working components and measure their values by hand?

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+excellent question...

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The black devices are likely resistors so a multi meter will be handy to measure the values from the good module. The brown ones are most likely capacitors and will be harder to evaluate. The 8 legged device with 150 on it is likely a 150 ohm resnet (resistor network). These come in many forms with series, parallel, and other internal variations.

Some measuring with a multimeter may resolve this for you.

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THIS PAGE may help you out. Click on the SMD resistors and/or capacitors links on the LH side.

If you have a 20x eye glass you may be able to see/read identifying marks on these devices.

EDIT

First two digits for significant figure and 3rd digit for number of zeros - 150 would therefore be 15 ohms not 150 ohms.

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HIH

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