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820-00165 No image, Chime, Minimal USB Activity
I have an 820-00165 board here with no chime USB flashes for half a second when first plugged in, no activity after that All CPU power rails measure normal, and CPU gets warm PLT_Reset_L is 3.3v PLT_RST_BUF_L is 2.8V Tried swapping a known good BIOS chip onto board, no change. Original has...- EMS05
- Thread
- Replies: 5
- Forum: Macbook Logic Board Repair Questions
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820-3435 No green light after liquid damage
Hello, I'm working on an 820-3435 motherboard with no green light pp3v42 circuit was heavily corroded, some VIAs were destroyed. All corroded components replaced, jumpers ran to repair damaged traces I occasionally get an orange light (never green), but in the rare instances I get it it...- EMS05
- Thread
- Replies: 4
- Forum: Macbook Logic Board Repair Questions
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820-00165 Not Detecting SSD
Firstly, I think it's important to mention I have very limited board repair knowledge. I've done a few basic repairs, but never something as involved as this I'm working on an 820-00165 board that will not detect an SSD. Used a known good SSD and it doesn't show up in boot menu or DU (Internet...- EMS05
- Thread
- Replies: 12
- Forum: Macbook Logic Board Repair Questions