Boot the computer chassis to the fans inside the loud? ? /

2 minutes after the start of the normal, we buy the machine

my computer with only 2 years of your question, you may Well no fan of the machine became a time when fans will be running at full speed
work when the fan speed based on the cpu temperature regulation
so smart lz This is a normal phenomenon in this case, a boot is an instant fan Maximum speed, and then slowly down regulation,
but you 2 minutes after the normal, feel a bit like a time machine for a long time, fans of the internal lubricant is not very good, especially in the winter occur coagulation, resulting in machine became fans Friction, sound, running a few minutes after the opening of a lubricating oil, that's enough.
You open the box to look at the best fans, take a look at boot time fans have abnormal rotation in the winter will be more interest, time Long will the ring, not the final turn.Go back to find him another good heat sink and fan