Regarding the thermal paste pump-out, it's due to using thin paste that's not designed for direct die-to-heatsink contact (Arctic MX-5, etc). The constant therm

Regarding the thermal paste pump-out, it's due to using thin paste that's not designed for direct die-to-heatsink contact (Arctic MX-5, etc). The constant thermal expansion/contraction 'pumps' the paste out the sides, because the die expands differently than the copper heatsink. You can get a thick paste made for that purpose, like SYY 157 which is what I use, and it will stay in place. I just re-pasted my GPU and had the same issue occur, with standard CPU paste within a week the temperature was very high, after using a thicker paste it's been fine and has much lower temps.