i have one fan that died.. it spins very slowly and makes a horrible rattling noise.. this is the fan that started making noise before i oiled it.
ive since oiled all my fans.. a few of them were completely dry..
i suggest everyone to peel the sticker off and put a drop of oil on the bearing.. let it soak in for a few minutes and run the fan face down for a few.
Be careful.. oil can mix with dust making some sort of paste and block the bearigns completely. Some bearings are designed to run dry (don't know if these are the case).
some of them had oil on them..
i really dont think these fans are going to last very long.. i really wish he went with the longer heatsink and put the fan on top. that way when it fails you can just remove it.