Noisy fans on a desk-top pc Model Acer Veriton 1000. Besides replacement for new fans, can brushless fans be serviced or lubricated?

Hi need help asap.
I opened my acer desk top box to clean dust out and now has warning chassis open.
I cant access the bios or anything else. Does someone have a suggestion????
Panicking

The cooling fan will need to be replaced, go to www.ebay.com Type make and model of laptop, refine search to cooling fan. In order to fix this properly the computer must be dismantled down to the motherboard level, remove old fan and heatsink and blow out dirt and dust with a can of compressed air, next remove old thermal grease with rubbing alcohol and a paper towel from the processor and heatsink, now apply fresh compound and assemble along with the new cooling fan.

I would Remove the Bios Password and start fresh. Once you remove it, start with a new password.

See the Acer Veriton Z290G User Guide on the Acer Support web site which advises how to remove the back cover of this all-in-one computer.

Yes all computer fans will vary their speed in order to conserve power. They will speed up when the processor is being used as it generates more heat and needs to be cooled more but if the tower is inactive the fan will slow as it does not need as much cooling.

Most desktops have fans fitted, especially in the power supply.
The bearings and not that good and become noisy when older. They are replaceable but a replacement power supply is far less effort.
Show the fans a plastic pipe from a vacyym cleaner from time to time, that will make the fans more efficient and reduce the wear and noise.
The hard drive can get noisy also, (if it is I would before it is too late), recommend replacing it.
Hope that helps.

I have the same problem, bought it this week from Elara.

It is not unusal for capacitor/s to blow their tops and could emit flames and smoke as the power supply ages. When they blow they could damage other components. Don't bother trying to replace them, get a new power supply.

no bearings gone replace

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