Most the time Memory Slot stops working with No display/High Fan Speeds is
Pin not making contact to RAM [cleaning with soft/medium brush or tooth brush]
Drain power completely/ Hold power button 30 seconds to 1min and pull CMOS BATTERY before doing
Dip in 70%-100% rubbing alcohol if must just let sit long enough to Evaporate before connecting any sort of power.
Capacitor leaking will cause Slots to work even with smallest leak. Bad Caps don't always bubble
If you don't have tester, I just replace all lol
Also CPU pins bent, broke or making connect with another will cause RAM Slots malifunction
and last drivers before stop working could do it[Reformat never hurts sometimes]
If turn PC and Fans Speed up intensely it's usually Hardware Issue
Pins are fragile and easily bent
Compatibility should always be check first, before changing RAM
Got bored, questions unsolved
Not had buffering issue yet tho.
Not the smartest detailed answer but more of General Idea where to start.
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