Starting about 4 or 5 days ago, my computer started overheating all the time. I have a program called SpeedFan than tells me a few different temperatures in the computer. Temp1 stayed pretty much the same at about 30C. When the computer was idling, Temp2 and Temp3 were usually about 40C. However, whenever I started to browse certain websites (such as youtube, facebook, or photobucket) or play simple old games (such as diablo ii), Temp2 and Temp3 would go up to 55C or 56C, and the computer would shut itself off.
I figured maybe the fans and heatsink were clogged with dust, so I took them out and cleaned them off, and put new thermal paste (silicone) between the processor/heatsink. However, now when I turn on my computer, it will not boot up. Both the case fan and heatsink fan run at full speed, but the computer will just sit there. I'm pretty sure I hooked everything back up correctly (I only had to unplug one fan).
What do you think is wrong with my computer? Did the processor get fried? Are the temperature sensors whack? Did I accidentilly drip thermal paste on the motherboard and cause a short?