Update:
Pre-cleaning preparations taken:
1. Removed all cables from the motherboard.
2. Removed everything on the motherboard (CPU, RAM, GPU, M.2 NVME etc)
3. Removed CMOS battery.
4. Toggled power buttons a few times.
5. Held power button pressed for a minute.
6. Waited 5+ hours for any remaining electrical charge to be flushed.
Cleaning:
1. Used 96% Isopropyl Alcohol to appropriately soak affected pins in said substance.
2. After a few minutes started lightly scrubbing with toothbrush. Toothbrush was soaked in same substance, not dry.
(Tip: I did cut all toothbrush fibers except the top row so I could precisely brush only where I needed.)
3. A few scrubs after used a microfiber cloth (doesn't leave any residue/fibers) to carefully catch/remove any loose material.
4. Repeated step a few times untill pins were visually as clean as possible(clean but not perfect).
5. Waited 5 hours for isopropyl solution and the amount of water in it to evaporate.
As I write this I have successfully ran:
Single RAM stick in the upper bank: MemTest64 for 30 minutes / pass - no crash.
Single RAM stick in the lower bank: Running at the moment.
Single stick XMP: Enabled 4.000MHz @ 1.364v (1.35v)
Edit: Single RAM stick in the lower bank: MemTest64 for 34 minutes / pass - no crash.
Everything till this point was with the i3-9100F
post edited by HE4THEN - 2020/09/02 19:44:16