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Broke my GTX 470. Help!

post #1 of 15
Thread Starter 
So, I decided to upgrade the stock cooler and was taking the plastic shell off by flipping the tabs with a flat-bladed screwdriver.

Long story short, I bent the silver component inwards (a little), and pulled it off of its posts with a pair of needle-nose pliers. I pulled it off because I was trying to see if I had made it loose, and I pulled too hard. I know, stupid.

Here's a Photobucket album of the damage. You can see in some of the pics where the cylinder piece (capacitor?) goes, there are two little posts there that it goes onto. I tried putting it back, and the holes are so small that I missed and bent the post a little. Furthermore, there is a small amount of damage to the component itself from the screwdriver, so at this point, I think I'd prefer to get a new one.

So, what's my best bet? I don't think the EVGA lifetime warranty will cover this, and I think I can fix it myself as I have some soldering experience. However, I'm not even exactly sure what the part it is. And if I can find a new one, will it come with the posts in it so I can just take out the old posts and put the new component in?
post #2 of 15
go to your local computer store and ask them to weld it for you. Dont try to use it you might short out your whole computer.
post #3 of 15
Thread Starter 
I'm pretty sure they'd solder it, not weld it. I have done a fair amount of soldering having successfully installed a mod chip on my original xbox, LEDs for my 360 and 360 controller, and a 360 rapid-fire mod for my controller, among many other things.

I just need to know what the component is and perhaps how to take off the black plastic guard that's around the entire card..
post #4 of 15
It's a capacitor, either the old one or a new one that is a suitable replacement needs to be soldered in.
There are people on this forum who could fix it but I have almost no experience with soldering so I couldn't even give you advice on it.

Maybe a thread title like "soldering skills needed" might help. I know that isn't very helpful but it might get somebodies attention.
That or head to the graphics cards volt mods section and ask there, experienced volt-modders solder components like that all the time so they might be able to help you out.

I'm not saying this is in the wrong section or anything, just that your thread might get more responses over there.

Just saw your post when I refreshed, I'll see if I can google the type of capacitor. If you can solder small components together that helps and it means you've got a good shot at fixing it. smile.gif

EDIT: Search 820uf 2.5 volts capacitor on any shopping site and buy one that looks like it's a good quality one, ask here if you're unsure.
Edited by Mike-IRL - 1/30/12 at 7:30pm
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post #5 of 15
It's a capacitor. You might have to buy a spare from an electronic parts outlet/dealer, the leads from it look pretty short.. might be a bit difficult to solder.
post #6 of 15
Thread Starter 
Thanks. What about "c0" -- is that important?

I understand it to be tolerance.. is this also an important parameter to include in my search, or not so much?
post #7 of 15
Quote:
Originally Posted by lukeman3000 View Post

Thanks. What about "c0" -- is that important?
I understand it to be tolerance.. is this also an important parameter to include in my search, or not so much?

Get a C or better I'd say, it's not going to hurt it if it's closer to Nvidia's desired value than the original so A or B should be fine too.
Even D would probably be okay but you might as well get a high quality one as they're pretty cheap.

EDIT: Actually, I'm not sure A rated ones exist.
Basically get the best one they have, tolerance is just a rating of how close to the stated value the capacitance actually is.
Edited by Mike-IRL - 1/31/12 at 1:32am
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post #8 of 15
Thread Starter 
Update: Ordered a new capacitor and installed it. Had to buy a 50 watt soldering iron to get the old one out because my 30 watt wasn't cutting it.

In my brilliance, I also knocked two of the smaller smd resistors (I think that's what they are) off of the board. (They are the two vertical ones directly under the hole and a little to the left):
tn.jpg


These things are tiny, like specs of dirt. Luckily, I was able to put them both back on. The card seems to be working fine.
Edited by lukeman3000 - 2/25/12 at 7:25pm
post #9 of 15
Quote:
Originally Posted by lukeman3000 View Post

Update: Ordered a new capacitor and installed it. Had to buy a 50 watt soldering iron to get the old one out because my 30 watt wasn't cutting it.
In my brilliance, I also knocked two of the smaller smd resistors (I think that's what they are) off of the board. (They are the two vertical ones directly under the hole and a little to the left):


These things are tiny, like specs of dirt. Luckily, I was able to put them both back on. The card seems to be working fine.

Fair play for getting them back on and working, I think my 3870 died that way. tongue.gif

I'm putting off soldering anything that small until it absolutely has to be done.
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post #10 of 15
Thread Starter 
Quote:
Originally Posted by Mike-IRL View Post

Fair play for getting them back on and working, I think my 3870 died that way. tongue.gif
I'm putting off soldering anything that small until it absolutely has to be done.

The trick is to clean the old solder off with desoldering braid so you can hold it against a flat surface. Just do one side at a time. Just takes a steady hand and lots of patience, especially if you don't have the right tool to hold something that small with. It's amazing how incredibly annoying a seemingly innocuous pair of needle-nose pliers can be when they're magnetic and you're dealing with small, metallic objects.
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