Hi folks,
I want to solve a Razer Blade 14 (2022) RZ09-0427 with Ryzen 9 6900HX and RTX 3070Ti from scrap, and I need your help with the diagnosis.
I have checked (I hope) all the voltage rails and found no shorts to GND and B+ except for the CPU VDDCR_SR rail (see the photo), which is near zero ohms to GND.
When plugged to PS, the laptop charges the battery, and after pressing start, it supplies voltage to all voltage rails except for CPU VDDCR_SR one and, of course, the dGPU, nothing more.
I have no experience in this type of repair, so please let me know if the low resistance on the Ryzen 9 VDDCR_SR rail is normal or not, and if so, what else than a blown CPU could be causing the lack of start and where to go with my fault finding.
I want to solve a Razer Blade 14 (2022) RZ09-0427 with Ryzen 9 6900HX and RTX 3070Ti from scrap, and I need your help with the diagnosis.
I have checked (I hope) all the voltage rails and found no shorts to GND and B+ except for the CPU VDDCR_SR rail (see the photo), which is near zero ohms to GND.
When plugged to PS, the laptop charges the battery, and after pressing start, it supplies voltage to all voltage rails except for CPU VDDCR_SR one and, of course, the dGPU, nothing more.
I have no experience in this type of repair, so please let me know if the low resistance on the Ryzen 9 VDDCR_SR rail is normal or not, and if so, what else than a blown CPU could be causing the lack of start and where to go with my fault finding.
Attached Files