Jesseg1331
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Hey everyone,
I was wondering if someone would be able to help me identify the value of the capacitors (pretty sure that's what they are) that have been damaged/are missing in the attached photo?
They were damaged while fitting a 3rd party graphics card, that didn't have the best instructions :(
The card is an 3080 EVGA FTW3 ultra gaming, and if you couldn't tell, they are just above the PCI-e slot
Any help is appreciated,
Thanks in advance
(File won't upload for some reason, will try again when I get home. Imgr link attatched for now)
Imgur.com/gallery/9uMbmYf
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the_Scarlet_one
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Re: Broken capacitors (?)
2021/02/13 16:17:56
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 Image attached for you. I would say they are there for a reason. If they are gone, then they are not filtering as intended.
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_Gir_
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Re: Broken capacitors (?)
2021/02/13 16:49:22
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Is one of the pads missing in the lower right square? Doesn't appear as shiny as the other ones but could be an issue. jaystwocents on youtube broke a cap or two on his KPE and EVGA had to send the card back to Taiwan for repairs due to damage to the PCB pad.
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ty_ger07
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Re: Broken capacitors (?)
2021/02/13 16:56:44
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They look like decoupling capacitors for signal pairs. There are many nearby which appear to serve the same purpose. I bet that if you measure the others, you would see that they are all roughly the same value. Anyone with the skills necessary to repair the missing capacitors and damaged pads, should have the tools necessary to measure the values of the other capacitors nearby.
The warranty is void, do what you can.
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Jesseg1331
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Re: Broken capacitors (?)
2021/02/13 17:00:28
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Yeah, I know the warranty is void, I'm just trying to find out what my options are while I wait for the Taiwan office to reopen and see if I can send it in for repairs
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Jesseg1331
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Re: Broken capacitors (?)
2021/02/13 17:04:38
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the_Scarlet_one
Image attached for you.
I would say they are there for a reason. If they are gone, then they are not filtering as intended.
Thanks for that
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ty_ger07
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Re: Broken capacitors (?)
2021/02/13 17:20:55
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Everything I find via Google search says that the PCI Express Gen 3 specification for those capacitors is 176 nF to 265 nF. I couldn't find anything for Gen 4, but it is probably the same/similar to Gen 3 as far as this is concerned. I cannot view the PCI-SIG PCI-E 4.0 specifications documents because I am not a member; otherwise I would know for sure. Maybe you can find someone's reference to it, but I couldn't. Like I said, I would just measure any number of the other dozens of decoupling capacitor pairs in that area, and use the same value as those. It is extremely likely that their values are 220 nF since that is a common capacitor rating which falls inline with what I expect are the PCI-E Gen 4 specifications for those capacitors. The next common capacitor value is 330 nF, but that is way too big of a jump from Gen 3's 220 nF, in my opinion, so is very unlikely.
post edited by ty_ger07 - 2021/02/13 17:27:58
ASRock Z77 • Intel Core i7 3770K • EVGA GTX 1080 • Samsung 850 Pro • Seasonic PRIME 600W Titanium
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Jesseg1331
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Re: Broken capacitors (?)
2021/02/13 17:58:16
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Most of the readings from around the area is 220-225, so I think that you are spot on ty_ger.
Will order a few incase EVGA doesn't want to repair it for me (happy to pay as obviously isn't warranty), will find out on Wednesday. Otherwise, will have to find a local place that can do it, which is surprisingly harder than I would have thought.
Branding wouldn't particularly matter, as long as it is 220nf rated, correct?
Thanks
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Jesseg1331
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Re: Broken capacitors (?)
2021/02/13 18:15:32
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Looking at these, seem to fit the bill.
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ty_ger07
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Re: Broken capacitors (?)
2021/02/13 23:50:08
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I am glad that I was able to help.
I do not think that brand will matter.
The signal is low voltage and low current.
ASRock Z77 • Intel Core i7 3770K • EVGA GTX 1080 • Samsung 850 Pro • Seasonic PRIME 600W Titanium
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