Most likely it is firmware issue as the drive controller does some internal health checks.
Can you post a report from speedfan utility by clicking perform in-depth analysis button?
You see these standard SMART reports are mostly useless as most of these parameters does not have a threshold set by manufacturer for failure. For example from my experience even one remapped sector makes drive access slow as each request have to be looked up in bad sector list but it us not considered as failure.
I then create a recording of World of Warcraft cinematics (both location: WDC and External drive), using OBS (installed on SSD), and Video output from OBS is stored on External Drive.
Funny enough, no stuttering, no disk spike where I played cinematics on External Drive.
Where as on WDC, if I counted correctly, there were 4 spikes and it captured perfectly on my videos below:
Spike (WDC): Test Disk 100% Issue - Positive - Cinematic WoW Trailer - YouTube
Non-spike (External Drive): Test Disk 100% Issue - Comparison - Cinematic WoW Trailer - YouTube
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If you are hearing noises, it's already way too late. The bearings are worn and allowing the fan to shift its axis slightly, causing rubbing that wears the bearings more. Adding lubricants can make the problem better for a short period of time by filling the space around the worn parts of the bearings, reducing the fan's ability to shift temporarily. But very soon the lubricant will get squeezed out and the fan axis will shift again. Replace the fan.
What David Schwartz said is mostly correct. By the time a fan is tilted/wearing on bearings, the fan's days are numbered. But if you can catch it quickly, you can prolong the life of the fan for quite a while.
Desktop fans are replaced easily enough (they're all pretty cheap), but since you mentioned this is a laptop - which often have unique/hard-to-find components - a replacement might not be feasible. So sewing machine oil might be your best bet.
I had a laptop fan that was noisy. I opened it up and cleaned the axle with some alcohol. I then used a needle dipped with alcohol to clean the slot/shaft/hole/? where the axle goes. There was some dirt in there that caused the axis of the axle to be slightly off. This caused the blades of the fan to graze the case, causing the noise. Then I used some mineral oil on the shaft and used the needle to get some in the hole. It has been running perfectly for 2 years now. FYI, mineral oil is non conductive. Ive fixed several laptop fans with this method.
My recommendation would be NOT to add ANY lubricant. The computer fans are designed to be serviceless. ANd you definitely don't want anything dripping anything onto anything inside a computer...There are several possibilities as to what is the cause:
My bet would be on last one, though. If it happens on start and stop only it means that probably it got overheated or damaged at some point and it has deformed from temperature. Had this issue in laptop once - later fan started to cut out after some time and finally failed completely. Warranty job, though.
If there is a crucial need to jump-start or ease the fan's working it is much better idea to pull it out completely, give it a good (but CAREFULL!) compressed air cleaning and give it an alcohol soaking bath (isopropyl alcohol is cheap and is nearly as wondrous substance as WD-40). Dry it afterwards and put back in the machine. If the fan was dirty this should do the trick.
EDIT ON LUBRICATION: Any lubricant that would do anything good needs to be sticky (which means viscosity must be high enough), so that it sticks to the fan (duh.), but not too high so it can penetrate to the spot where it's needed. Since fans are somewhat hi-speed, most of the lubricant will get squeezed back out anyway. That means the dust particles and grit have something to stick also. Normally this is happening mostly due to static charge, so it means you can remove any dirt quite easily with airspray. With lubricant you get caking, which can be, after a while, basically only dissolved to get rid of. So WD-40 time (again) or alcohol bath. And after that lubricate again, since WD-40 is not lubricant, but a solvent. Since you end up with most of the lubricant on the outside, and with that speed it will be very fine mist, it will end up inside the heatsink. And thus more caking and more WD-40. That's why I mention viscosity - adequate oils will have low viscosity, which means above process will take hours; with high viscosity oils fan motor will be more strained spinning the fan, causing said motor to overheat... Higher temperature will lower viscosity of the oil, which will cause it to drain faster. And we're in a 'while-then' loop really...There is a reason why in case of high-rpm systems lubrication is applied to sealed components and it's usually grease.
I'm not saying lubrication is a dumb idea (just touching on mildly stupid), but I would see it as an emergency solution only, not normal usage, and with understanding there will be part replacement sooner than later.
The fact that you can doesn't mean you should. Laptop fans are small, high-speed devices. They are designed without any lubrication whatsoever. So that should give you pause right there. But just to drive the point home - since they're designed that way (and, to boot, this is because they are designed as a dust-proof devices, for obvious reasons), only way to meaningfully lubricate a laptop fan you have to tear it down... Which is another "pause and think before you do it" moment: disassemble a part designed not to be disassembled and then put it back together with something extra added.
I can only tell you my experience with an HP Pavilion laptop. Its fan started making noise like its bearing was bad, I looked online for lubrication tips, but read that nothing would likely work, so ordered a replacement fan, which I installed.
Two months later, the replacement fan started making the same noise. I had kept the OEM fan, and figured I had nothing to lose by trying to fix it. I found a youtube video that showed how to take apart the fan to clean its bearing. Because mine was so dirty, I cleaned it by rinsing it in camp stove fuel, after which it spun freely (had not before and was thick with dusty gunk which the fuel removed). I let it dry, then put it together and it seemed to work, but soon was making the same loud bad bearing noise.
So, I took it apart and put a tiny bit of silicone grease on the pin that is the axle the fan spins on. There are different viscosities of silicone grease. This one was thinner than the plumber's grease type. I got it from a diving supplies shop, and I believe it is intended for lubricating SCUBA gear O ring seals.
I took it all apart again and looked at the fan's axle pin. I saw I had put a little too much grease on it, and some of the silicone grease had worked its way out of the axle bearing and to the space between the fan and the housing, where it apparently caused enough drag that it triggered the fan warning.
That was well over a month ago and the fan has worked silently since without more warnings. How long it will last I do not know, but it appears to me that cleaning with solvent and lubricating the axle pin with a tiny amount of relatively low viscosity silicone grease is worth trying to fix a failing / noisy laptop fan.
If the fan has plain bearings and has not been noisy for too long it certainly can be lubricated. The reason these bearings begin to get noisy in the first place is due to a lack of lubrication. The lack of lubrication could come from either not enough being applied in the first place, or it simply evaporated due to excessive heat or time. Yes, all oil is volatile to some extent and all oil will eventually evaporate. These bearings respond well to lubrication and for a small motor like in a laptop fan I'd suggest between a 10-15 weight oil. If it has gone too long such that the bushing is so large the fan begins to slow down after starting then lube will only be a stop-gap. If you get to it quickly (within a couple of days of the noise starting) lubrication could fix the problem for a good deal of time. Just make sure any obstruction in the airflow (dust, fibers, animal hair, etc..) is kept leaned out other wise the heat will get excessive and cause our bearings to dry out again.
I have an old Thinkpad t410. Two month ago its fan stopped working. The problem was contamination. I opened it and detached the rotor from the stator. But after cleaning and putting them together, another problem showed up: Noise! After some searching I found that lubricating it may help. But lubrication was not the answer. After many tries and errors, I found the answer! I put the rotor in the stator when the fan was under voltage! and it's working like the day one with no lubrication or anything else. Maybe it's not the case for every one but it's something that should be considered. I think that when we put things together, the router is not aligned in its natural axis and by imposing voltage to the fan during the assembling process, it will find its natural axis.
My fan was making very loud noise, I opened the laptop and saw that the fan was jumping out of it's place and hit the case, mostly because the axle is losing it's vertical axis of rotation (may be the slot/shaft/hole become little loose for the fan axle)
I have used a lubricant that is meant for hair trimmers. They have super fast moving motors. It's not thick at all and drips like water. I am guessing that I could has also used some WD40 as well. It fixed the loud rattling that the HP Pavilion's fan was making. In the mean time, I have ordered a replacement fan as I am not expecting this to be a long term fix.
To answer your question directly. There is no type of lubricant that could be safely added to a laptop fan. Any attempt to lubricate the fan would likely spread lubricant everything throughout your laptop.
As others have said, the best solution is to replace the fan. However if this is not possible due to the unavailability of parts, lubrication may help. The best lubricant I have found is semi-synthetic motor oil. 152ee80cbc
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