I have a PS5 that had a shorted south bridge and 3.3V rail off fuse F7002. I replaced both of the components and I am only getting about a 150 ma draw upon powering (plugging in the board to the power supply). This should be around 300 ma. I cannot find any shortages anywhere.
I checked for voltages around the south bridge and seem to be missing 3.3v and 1.8v. where I am supposed to get 1.8V I have no measurements, the 3.3V in one section is measuring 0.5 and the other is 0.965V. These voltages are in standby mode and not powered on, see photos attached. I was wondering whether those voltages are enabled by the southbridge or elsewhere? any input would be greatly appreciated.
One thing that concerns me is whether the southbridge is faulty, I purchased these off alibaba and they were supposed to be brand new OEM.
I checked for voltages around the south bridge and seem to be missing 3.3v and 1.8v. where I am supposed to get 1.8V I have no measurements, the 3.3V in one section is measuring 0.5 and the other is 0.965V. These voltages are in standby mode and not powered on, see photos attached. I was wondering whether those voltages are enabled by the southbridge or elsewhere? any input would be greatly appreciated.
One thing that concerns me is whether the southbridge is faulty, I purchased these off alibaba and they were supposed to be brand new OEM.
Attached Files