Hey there 
I got another 820-00165 with some problems. It is in S5 State and nearly all other power rails are pulsing:
Lokked like someone else already worked on this board before. But no signs of liquid damage, all probe points look very clean.
The Board is taking 24mA - sometimes dropping to 14mA.
When i remove U8005 I got a steady fanspin and stable rails.
What I already tried:
-reballing SMC,
-flash new BIOS
-new U6100 from donor
-replace U8005
Bes regards
DudiPupan
I got another 820-00165 with some problems. It is in S5 State and nearly all other power rails are pulsing:
Lokked like someone else already worked on this board before. But no signs of liquid damage, all probe points look very clean.
The Board is taking 24mA - sometimes dropping to 14mA.
Rail | Voltage | Resistance to Ground |
PPBUS_G3H | 8.6V | |
PP3V42_G3H | 3.41V | |
PP5V_S5 | 5.01V | |
PP3V3_S5 | 3.33V | |
PP3V3_S0 | pulsing | 3.53kO |
PP5V_S0 | pulsing | 40kO |
PP5V_S3 | pulsing | 2.05kO |
PP3V3_SUS | 3.33V | |
PP3V3_S4 | pulsing | 28.7kO |
SMC_ADAPTER_EN | 3.41V | |
PM_SLP_SUS_L | 3.33V | |
PM_SLP_S5_L | pulsing | 39.3kO |
PP3V3S3_EN | pulsing | 37kO |
PM_SLP_S4_L | pulsing | 36.8kO |
ALL_SYS_PWRGD | pulsing | 245kO |
SMC_BC_ACOK | 3.29V | |
PP1V05_SUS | 1.06V | |
CPU_VCCST_PWRGD | pulsing | |
PPVRTC_G3H | 3.41V | |
PP5V_S4RS3 | pulsing | 250kO |
PP3V3_S3 | pulsing | 30kO |
PP3V3_S4SW_SNS | pulsing | 31kO |
PP3V3_S0SW_SSD | pulsing | 50kO |
PP3V3_S4_TBTAPWR | pulsing | 36kO |
PP1V8_S3 | pulsing | 1.5kO |
PP1V2_S3 | pulsing | 0.5kO |
PP1V5_S0 | pulsing | 4kO |
PP0V6_S0_DDRVTT | pulsing | 0.25kO |
PP1V05_S0 | pulsing | 0.25kO |
PP1V05_S0SW_PCH_HSIO | pulsing | 0.5kO |
PPVCC_S0_CPU | pulsing | 14O |
When i remove U8005 I got a steady fanspin and stable rails.
What I already tried:
-reballing SMC,
-flash new BIOS
-new U6100 from donor
-replace U8005
Bes regards
DudiPupan
