820-00923 - does not recognize SSD

[Palhano]

Logic board is clean, without oxidation. I already cleaned the J9600, checked continuity.

PP1V8_SSD_COLD - 1.8v
PP1V2_SSD_HOT - 1.2v
PP3V3_S5_SSD - 3.3v
PP3V3_2V7_NAND_VCC - 2.6v
PP2V7_NAND_PVCC - 5v
PP2V7_NAND_VCC - 5v

STORAGE_LB_EN - 3v
SSD_RESET_LB_L - 3v
LPSR_EN_LB_L - 3v

Any tips? First time I see good power lines and SSD not recognized.

 

[2informaticos]

Check if SSD is detected in target disk mode.

 

[Palhano]

It does not recognize it in target disk mode or in the MacOs installer

 

[2informaticos]

Check diode mode on PCIE_SSD/CLK100M lines.
Compare with good board, if possible.

You may consider to replace onboard SSD with M2 version.

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