i just upgraded from athlon ii x2 250 to core i3 2120 and i've noticed the 2120 runs at higher temp than the athlon. So i tried to observe what's wrong and found out that they are contrast in heatsink's fan rotation. My intel runs at 43+ in idle while my old athlon ran at 25+. I think it's cause of the rotation of the fan so any help to reverse it? Or do i need to change the thermal paste. I'm still using the thermal paste from the stock heatsink thus i've only used it for a week.
Maybe you did a bad install of the heatsink, it happens, you can try cleaning it up and reapplying it. But no, changing the fan direction isn't a solution even if you could. Intel does have engineers to work these things out.
Yes. and you can use a coffee filter to remove the old compound from the heatsink and CPU. For best results I would put a dot the size of a BB (not quite the size of a pea on top of the CPU and use a firm hand to press the heatsink down and spread the compound. You don't want to take it off after you've done this as this can create air bubbles.
ok i'll try but it's only a week old so i won't be cleaning it. i'll just check if it's installed correctly. do the thermal compound need replacing when i detach the heatsink?
The fact that its only a week old is not important, if you remove the heat sink replace the paste.
The intel sink is notorious for being difficult to fit, make sure that all of the push pins are fully engaged, it does require some degree of force. If you loosen and replace without lifting the heatsink you should be ok, air is the problem as indicated elsewhere.