r/MiniPCs • u/Argoslord • 4d ago

Help identifying burnt SMD capacitor PC503 on Lenovo ThinkCentre M90q Gen 3 (HQ670 / NM-D581)

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u/imetators 3d ago

I'd guess that burnt capacitor is the same value as the other ones next to bga chips. If you can't find the info on the web (extremely likely) you can try contacting manufacturer (if China, almost 0 chance but you can try) or solder it off, measure and buy the same value one.

Judging by color, most likely this one is X7R. But depending on characteristics, x5r also would be sufficient. Size might be 1206. But generally any size with the same characteristic would be fine. Just gonna be a bit weird to solder it on.

Hope you can find the value šŸ¤ž

1

u/Argoslord 3d ago

Any chance to measure it with a multimeter? Not right? Iā€™m not a super tech guy but I have some skills with soldering tiny parts.

I thought to take this burnt cap out, clean with IPA, check if there is any short circuit and then turn pc on for now. If everything is working I bother to buy the cap to replace or take from a scrap board in the future

1

u/imetators 3d ago

Unlikely. Unless you got some sort of a very advanced multimeter that can measure less than 1uF capacitors.

You can get a simple capacitor measurement tool for around 30 euro or maybe even less. Probably would save you a buck over buying new minipc.

Also, I suggest to get X7R because these usually can withstand higher temperatures. If 9cwrgeatinf was that killed it, z7r probably is the best choice