Possible broken 4850

[Snowman89]

A friend of mine accidently ripped smthing of the pcb from his 4850. After the accident the card works well but it only runs a x1 pci-e. Does that have something to do with the piece he ripped off or is it something else thats causing the problem? Ive asked him to take a photo so i will post it here when i get it.

If its the missning component that causes the card to use x1 pci-e, would it be fixable if i resolder it or is something else broken now to?

Here is the picture, its C60 thats missing. http://pici.se/419552/

[spdycpu]

A friend of mine accidently ripped smthing of the pcb from his 4850. After the accident the card works well but it only runs a x1 pci-e. Does that have something to do with the piece he ripped off or is it something else thats causing the problem? Ive asked him to take a photo so i will post it here when i get it.

If its the missning component that causes the card to use x1 pci-e, would it be fixable if i resolder it or is something else broken now to?

Here is the picture, its C60 thats missing. http://pici.se/419552/

That would be a surface mount capacitor. Does your friend still have it? I did that to an old GF2 MX way back in the day. I emailed the manufacturer and asked them what value of cap it was and they told me. Got one, soldered it back on and it worked fine. You could try that or unsolder one of the other caps and check the capacitance with a multimeter that has that capability. First I'd probably try to check what voltage runs through those adjacent caps. You'll probably need to solder two wires off the ends to be able to test it.

Just find the proper cap and I'm sure you'll be fine.

[celemine1Gig]

Easily fixable. Looks like your friend ripped off a SMD capacitor. Seems to be 0603. Capacitance is hard to tell, though.

And yes, the ripped off part is the reason for the malfunction.

[Snowman89]

Easily fixable. Looks like your friend ripped off a SMD capacitor. Seems to be 0603. Capacitance is hard to tell, though.

And yes, the ripped off part is the reason for the malfunction.

Thx for the answers. So where can i find one like that? If i learn the resistance of it ofcourse. Is C61 same resistance? How hard is it to resolder those usually?

[celemine1Gig]

This is no resistor. ;) And no offence, but judging from the questions you are asking: find someone who knows what he's doing and let him do the repair, for a few bucks. This way it'll really be repaired afterwards.

[Snowman89]

This is no resistor. ;) And no offence, but judging from the questions you are asking: find someone who knows what he's doing and let him do the repair, for a few bucks. This way it'll really be repaired afterwards.

Hehe i will get someone to do the soldering and so. But is C61 the same as C60? Are those avalible for purchase or do i need to look for other graphics card with the same and then take it from them?

He does not have it, he threw it away...

[largon]

Grab any PCIe card and salvage the cap from it, they're all the same.

[diredesire]

It's going to be 95% likely that it is the same capacitance (value) as C60, it's likely the two traces are a differential pair, so they will be matched. The value probably doesn't really matter too much, it looks like it might be an inline AC cap anyways. Just salvage a cap from another device, chances are it will work fine. If you know someone that has nicer tools, you can match the caps with a salvage one, but the caps have at LEAST a 10% variance anyways, which is why if you're even in the ball park, you'll be fine.

That's also incredibly likely to be an 0402, not an 0603.

Edit: to explain further, 0402 is the footprint, or the physical size of the cap, not the value of the cap.