Over heating and shutting down

Ive tried ckeaning the fan, heat sink and put a new thermal paste but it still heats up. At times the fan does not move completely and after a short while it switches off.

Plz advice whats the problem?

Is it the graphics card?

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 1

crwdns2944067:02crwdne2944067:0:

Hi try to replace the fan it may be faulty?

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

Can i put acer fan to try?

crwdns2934271:0crwdnd2934271:0crwdne2934271:0

crwdns2934285:0crwdne2934285:0