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- Joined
- 29 Jun 2016
- Posts
- 543
Hey mate.
You've broken a polymer electrolytic capacitor on the output of your VRM, which is lucky in several ways:
In terms of fixing:
You've broken a polymer electrolytic capacitor on the output of your VRM, which is lucky in several ways:
- These type of caps tend to fail open-circuit. If that was an MLCC, you'd have a puddle of copper instead.
- It's a big old cap that can be trivially replaced by anyone handy with a soldering iron.
- The card will probably operate fine without it, where it'll increase the (current) load on other caps, but is probably a marginal fit considering most of the other footprints and not fitted.
- It'll slightly decrease the performance of your VRMs in terms of higher voltage ripple.
In terms of fixing:
- Get a replacement part, which is easy enough based on the package markings.-: 220uF 16V/25V polymer electrolytic, can't guess at case size from image, but datasheets will give you sizes.
- Get parts from Mouser/Digikey/RS/Farnell - DO NOT BUY FROM EBAY/ALI, they will be absolute ***** parts.
- Use a soldering iron to replace, or get someone who is decent at soldering to replace. It is a 1-2 minute job.
- I would recommend against hot air when a soldering iron is easier (assuming you have a fine tip to get in)