Component ID

[Rod_McC]

Trying to identify this component. I have traced the main power to the top side of it, but nothing past it. Resistance measurements in both directions were into the M ohms. Any info and specs would be greatly appreciated.

[RONOTHAN##]

What is this even on, as its positioning relative to other components is pretty useful for figuring out what it is. 

 

That said, this is almost certainly a SMD capacitor of some sort. Based on the markings, I'm gonna guess it's probably a 330μF capacitor rated at 12V, though since Google isn't helpful with the markings I'm not sure 100% how to read the product code for that info. You should be able to figure out that info though based on positioning and what it's intended to be. 

[Rod_McC]

Thanks for the reply. It’s on a HP Envy x360 motherboard. Maybe this image will help you determine what it is. I also checked it in diode mode and got appt. 1.2 v in one direction and .58 in the other.

[Kilrah]

It's just a capacitor. Unlikely it's a problem and it's pointless to measure it in circuit.

If there's a problem with that power circuitry it's more likely to be a MOSFET or controller around it. That controller at the middle/top seems to have rework marks already.

[Rod_McC]

I have tested the mosfets in that area and all test good. The circuit from the dc plug to the top of the capacitor is good and from the bottom of the capacitor to the battery is good. There is a full 19.6 volt drop across the cap. 

[Kilrah]

The cap would likely be between ground and a rail, so having that rail's voltage across it is normal.

It's very unlikely a power rail cap is a problem unless it goes short, which obviously isn't the case here.