It's okay now, I've got the 3v back, thanks for this solution.
But I don't have the Spok and EN_1valw signals on pu601 sys8288brac. For your information, given the age and condition of the card, I'm not going to reopen a thread for this card; I'll give up for now....

I will try this solution and see if it is ok and post the result.

Hello,
Do you have any idea what's going on?
Thank you.

Hello I allow myself to graft on this thread I had exactly the same problem with a La-E92p R1A motherboard with Sio hs and reprogrammed but more than 3V_EN on PU401 exactly the same scheme. The difference is that I have the DB diode with 3v on pin 1 and 0 pin 2. What is the risk of shorting this diode? Thank you

Hello,
The fuses have all been tested for continuity.
For the MOSFETs, I tested them first in D-S-G continuity mode, then in diode mode.
If I separate the MOSFETs from the load by disconnecting the coil, I no longer have a short circuit on the MOSFET side, hence my conclusion, but maybe I'm making a mistake in my troubleshooting.
Everything is shorted on the RAMs. The test method points to ground. The ceramics are ringing on both sides at 0.00 ohms.
There's a problem with the RAM side. I also injected 0.8V, but nothing lit up. I don't remember the current. I'll have...

Hi, this is not the photo of my console visually everything is ok no fried fuse .....

The photo is not visible
the resistance to the ground is 0.00 ohm.
APU has a resistance, on PS5 which works, almost of the same grandeur on the other hand all the rams are short but side ram not mosfet idem for apu

Hello, I got a PS5 EDM-10 that won't start. UART code 80810001 and C00C0002.
UART startup current: 310 mA then 10 mA.
All the RAMs are shorted, as are the coils, only on the APU side, as well as the GDDR6, RAM, and VCore coils.
The short circuits are between the coils and the APU.
The MOSFETS are fine.
I circled the shorts in red.
If I inject 0.8V into the VCore coils, the APU glows at a specific point at around 40°C + 8 A.
Do you have any leads? Thank you.
...