About six months ago, the NB fan on my AI7 is making noise. With advises\nfrom this group, I have it fixed with sewing machine oil. Now the fan is\nmaking noise and re-lubricating it did not improve it. Is it on its last\nleg? With the fan so tiny, does it really cool anything down?\nFor now, I am running the PC without the NB fan and I don't see any\nimpacts. One side benefit is my CPU is running about 8 degree C cooler.\nHave no idea why.