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  1. Isolated

    820-01949 20v 0.06-0.35a

    Confirmed RAM module fried, reballed and resoldered just the one to board and short came back. Any way to just replace a single module or do they need to come as a set of 4? Looking online they seem to be hard to find, guess I could always buy a donor board. Thanks for the help, unfortunately...
  2. Isolated

    820-01949 20v 0.06-0.35a

    Removed all 4 RAM modules, and looks like the short is gone... after I removed the last one (U2300_1). Thinking about it now, I should have taken that one off first as its closest to the 12v MOSFET for PPBUS_HS_CPU so I guess it had a higher chance of damage. There is a rainbow looking mess...
  3. Isolated

    820-01949 20v 0.06-0.35a

    The only thing that looks to get any sort of thermal signature is all 4 ram modules. Also, if I try to increase voltage past 1.3v current drops from 0.17a to 0.04a. Not sure if that will give you any extra info but I guess it's time to start pulling RAM chips for now. Thanks for the help, I'll...
  4. Isolated

    820-01949 20v 0.06-0.35a

    Looks like the short is on pin 2 of L8100, removed R8118 and the short is on PP1v1S3 like you said. Injecting 1v all RAM modules change color slightly but are almost not even noticeable on thermals. Since voltage injection isn't really an option as it won't create enough heat, should I just...
  5. Isolated

    820-01949 20v 0.06-0.35a

    L7400: 115 / fluctuates anywhere between 0.40-0.70v L7230: 055 / 0v L7220: 055 / 0v L7210: 055 / 0v L8100: 002 / 0v L3500_VWR: OL, resistance measures ~16.5k / 0v L7660: OL, resistance measures ~100k / 3.36v L7030: OL, resistance measures ~630k / 12.55v L3500_VXT: OL, resistance measures ~16k /...
  6. Isolated

    820-01949 20v 0.06-0.35a

    Got this horribly liquid damaged, corrosion basically everywhere but somehow T2 and CPU seemed to have dodged most of it. Looks like it flowed around them rather than through. Replaced U7000, U6903, and U7100 where some of the worst of the corrosion was at which fixed stuck at 5v. Ran the board...
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