Working on an 820-4924 that had liquid damage. Board had liquid near ISL6259 and near the 3v3/5v TPS IC. Replaced ~10 burned caps/resistors and both ICs, ran a few wires and all seemed well. Ran the board through the cleaner really well, and tested board today. Board powers on and boots/chimes, but when it reaches the login window (or shortly after logging in), the board freezes. This was in a known-good test assembly (2 of them, in fact). I always have difficulty diagnosing issues like this one, as it's tricky to get measurements when the issue pops up. I suppose I could have an SSD installed with the board out of the case, wait ~20 seconds and then assume the issue has occurred and go from there with measurements?
Just curious what would be some good things to check first. All of my main rails are present, and the board is clearly posting and getting to OS fine, but freezes immediately (without having to move the unit--so maybe it isn't a RAM issue?). All help/direction appreciated.
Just curious what would be some good things to check first. All of my main rails are present, and the board is clearly posting and getting to OS fine, but freezes immediately (without having to move the unit--so maybe it isn't a RAM issue?). All help/direction appreciated.
