Help identifying this SMD component on a Framework 13 11th Gen Intel Mainboard

In diagnosing a for-parts Framework 13 11th Gen Intel mainboard, I shorted a component on the bottom side of the board :grimacing: . I’m looking for help in identifying it. I’ve attached two pictures of the component - one showing the shorted component’s location on the bottom of the mainboard (circled in red), and another from my microscope camera.

The component looks to have M??8E M3H written on it (the ?? characters are unknown and obscured by the burn mark caused by the short). It is unclear to me whether this component is labeled as UC11, PUZ301, or PLZ302 on the mainboard, as all three labels are equidistant from the component.

I’ve already checked this Framework 13 11th Gen Intel schematic on GitHub ( Framework-Laptop-13/Mainboard/Mainboard_Interfaces_Schematic_11th_Gen.pdf at main · FrameworkComputer/Framework-Laptop-13 · GitHub ) but could not find anything on UC11, PUZ301, or PLZ302. And since this is an 11th Gen Intel board, it has been out of warranty for a long time.

Any help in identifying this component would be appreciated! Thanks all.

If you are a repair shop. You can request the full schematics from FW.
The ones on github are only partial.

Unfortunately I’m not a repair shop - just a hobbyist. :grin:

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The marking looks like:
M?=8E
M3H

Some Richtek chips are marked like that.
Just counting 20 pins, it might be a:
RT6543
The RT6543 might be marked as:
ML=8E
M3H

The RT6543 is mentioned on the public schematic on the power tree page.

Note, I do not have that mainboard, so substituting a L for the unclear bit is a guess.

Bearing in mind that this is a power supply chip for the CPU/SOC. It is likely to have damaged the CPU/SOC in the process.

This should be it! I just ordered one from DigiKey. Since it’s +VCCIN it likely did fry the CPU…hoping this isn’t the case though. Thanks!

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Update: The RT6543 arrived today. I installed it, and am now getting the same POST blink code I was getting before the chip shorted (which was what I was troubleshooting before the short happened). Hopefully this means the CPU is still ok!

I’m currently waiting on some tools to arrive so I can manually flash the BIOS, since the hex blink code is telling me there’s some kind of BIOS issue. I’ll post again here once the tools arrive and I try flashing.

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What blink code are you getting?
What is the full history of the problem?
What might have caused it to fail?

A good place to start is getting CPU uart and EC CCD connected. To see the cpu console and the ec console.
I think you can use the EC CCD to see the CPU console. You just plug it into a different slot.