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Need Help Identifying Capacitor

minip

minip

minip

Associate
Joined
9 Dec 2013
Posts
2
Hi I bought a broken 7990 off eBay as it was cheap and i enjoy trying to fix things, as the unit is brand new I couldn't let it go (no idea why the seller couldn't RMA it)

Anyway when it arrived I had a good look at it and it seems one of the smd capacitors has been knocked off the back of the GPU. I am having great difficulty identifying the correct capacitor as I don't have it to test it.

I have removed one of the other capacitors within the area and tested that which is 20uf but I don't know the correct voltage for it. I was hoping as you guys seem to be pulling your PC's apart like me you may have a broken one that you could test or know of a place that has circuit diagram etc. Any help would be appreciated. If nobody can help I will order what I think will work and post back results in case somebody else has this problem.
Here are some pictures :)

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No idea, Overclock.net might be a good place to ask! Regardless can you even be sure that the capacitor is the only issue with the card?
 
Is it really necessary to remove the capacitors to measure them? can you not just touch the metal part on each end with it already fitted? because I was going to suggest buying a retail card and measuring that...

I'm not really electronically minded though. :p

I've heard stories like this where people have just soldered a wire and the cards have worked for months if not years without problems.
 
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it can be fixed, general rule is the capacitors will be mostly the same ratings to keep production costs down. Not sure how your going to check on voltage maybe try wire up a battery to it and test, a single AA bat should suffice
 
thanks for the replies guys, yes you have to remove them from the circuit to get a true reading so i have done so and then soldered it back into place. I was hoping they would use the same ones as that is what i have coming in the post. If it doesn't work im not too bothered as I needed a new cooler for another card and for £50 it solves that issue :) the capacitors are arriving tomorrow so I will give it a shot
 
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