Today I changed thermal pad on my GPU to Arctic Silver 5 thermal paste. After that I checked the temperature in SpeedFan. At first it showed ~90, then 0, then 230 Celsius. After seeing 230 I switched my laptop off. The same paste is on CPU and it stays on 40 Celsium.
Could it be a glitch or my gpu is melting?
EDIT: I couldn't tell how how the heatsink was, but I could feel warm when I put my finger close to it. Not the heatsink though, it's kind of metalic frame on the other side of motherboard around GPU and CPU area.