GigaByte Radeon Rx5700xt 8gb VDDCR_GFX_PWR_GOOD Signal is missing.

[Benass]

This will be a headscratcher. I don't know how to break it down to a readable topic.
Im troubleshooting Rx5700 GPU. Core voltage missing.
I have schematics and Boardview.

I'm currently troubleshooting a power management setup that involves the IR35217M and NCP81022 chips. I've encountered some issues specifically with the SM_ALERT#, SM_DIO, and SM_CLK pins, and I'm hoping to get some insights or suggestions from those who might have experience with these components. Current Observations:

• The SM_ALERT# pin is active (pulled low), indicating a potential fault condition. I understand this pin is an active low alert signal that indicates when the regulator status has changed, and it requires a pull-up resistor to function correctly.
• The SM_DIO pin has a steady voltage of 3.3V, and the SM_CLK pin also measures 3.3V.

Questions:

1. Has anyone experienced similar issues with these pins, especially in the context of the IR35217M and NCP81022?
2. What could be the potential causes for the SM_ALERT# being pulled low? Are there specific conditions I should check in the circuit?
3. What troubleshooting steps do you recommend for ensuring that the SM_DIO and SM_CLK lines are communicating correctly?
4. Could you share any resources or insights on proper pull-up resistor values or configurations that have worked for you in similar setups?

[MOD EDIT] Link to schematic/boardview

https://www.badcaps.net/forum/docume...1-0-board-view
https://www.badcaps.net/filedata/fetch?id=3472710

I appreciate any advice or information you can provide. Thank you!

[Benass]

Update:
After doing some research, I learned that the IR35217M is a programmable chip and has USB005 along with software to monitor AMD GPU core voltage phases. I bought a dongle, installed a utility program, turned on telemetry, and received a report indicating an issue with phase 4.

I took some measurements and found a shorted capacitor and one resistor on the same line. After replacing the faulty components, I got the core voltage working, and the GPU is now displaying an image.

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[Benass]

Unfortunately, Its crashing on Game benchmark like Heaven. So next is investigating memory and gpu core.